CN219953912U - Porous nut and power module comprising same - Google Patents

Abstract

The utility model discloses a porous nut and a power module comprising the same, which are used for solving the problems of long processing time and high cost caused by different mounting holes and different mounting heights of a plurality of PCB boards in the prior art, wherein the PCB boards are mounted in the same shell. The porous nut provided by the utility model comprises a nut main body, a first thread part and a second thread part; the power module comprises the porous nut, a shell and a plurality of printed boards; the utility model effectively solves the problems that a plurality of printed boards are arranged in the same shell body but the installation heights are different and the positions are discontinuous by the introduction of the porous nuts, saves the cost, and has the advantages of convenient and quick installation and high assembly efficiency; the layout of the printed board is more convenient and flexible, the height difference of components on the printed board is large, the printed board can be installed in a split mode, and the printed board can also be stacked, so that the space is saved, and the requirements of the external dimensions of customers are met; the mounting table in the shell is provided at a required position, so that the processing cost of the shell is greatly saved.

Description

Porous nut and power module comprising same

Technical Field

The utility model relates to the technical field of electronics, in particular to a porous nut and a power module comprising the same.

Background

At present, an installation table is required to be installed in a cavity, such as a power module cavity is required to be provided with a plurality of PCBs, the heights of the bottom layer components of the PCBs are greatly different, the installation table is integrally improved, the space is wasted, and the size and the weight of the box are increased. Meanwhile, for the situation that the multi-layer board or the multi-layer installed parts are not on the same height and the installed parts are discontinuous; the suspended installation fixing table is usually required to extend out of the cavity, but not all manufacturers have such equipment, so that certain requirements are imposed on processing equipment, the working time is required, and the corresponding processing cost is high.

Disclosure of Invention

Therefore, the utility model provides a porous nut and a power module comprising the same, so as to solve the problems of long processing time and high cost caused by different mounting holes and different mounting heights of a plurality of PCB boards in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions:

in a first aspect, a porous nut includes a nut body, the nut body includes a mounting portion that is arranged in the lower part, a first screw thread portion that is arranged in the upper left portion, a second screw thread portion that is arranged in the upper right portion, a first mounting hole that link up has been seted up along vertical on the mounting portion, a first internal thread hole that link up has been seted up along vertical on the first screw thread portion, a second internal thread hole that link up has been seted up along vertical on the second screw thread portion.

Optionally, a first pin hole is longitudinally formed in the left side of the first threaded portion corresponding to the first internal threaded hole, a second through pin hole is longitudinally formed in the right side of the second threaded portion corresponding to the second internal threaded hole, a pin is arranged on the mounting portion and on the right side of the first mounting hole, one end of the pin extends into the mounting portion, and the other end of the pin extends out of the mounting portion.

Optionally, the centers of the first mounting hole, the first internal threaded hole, the second internal threaded hole, the first pin hole and the second pin hole are located on the same straight line, and the straight line is collinear with the central axis of the nut body along the length direction.

Optionally, the height of the first threaded portion is greater than or equal to the height of the second threaded portion.

In a second aspect, a power module includes: casing and be located apron on the casing, casing and apron form inside cavity, be provided with three printing boards in the cavity, wherein: one piece of the printed board is positioned at the bottom and is marked as a bottom layer printed board, and the other two pieces of the printed boards are positioned above the bottom layer printed board and are respectively marked as a left upper layer printed board and a right upper layer printed board; the upper left printed board, the upper right printed board and the bottom printed board are connected through the porous nuts, and the porous nuts are the porous nuts.

Optionally, an installation table is arranged at the bottom of the shell, a third pin hole is formed in the installation table, a positioning hole is formed in the bottom layer printed board, and a pin on the porous nut passes through the positioning hole and is then placed in the third pin hole;

the novel printed circuit board comprises a porous nut, a bottom printed board, a shell, a first fastener, a second mounting hole, a third mounting hole and a third mounting hole, wherein the first fastener is further provided with the second mounting hole on the bottom printed board, the third mounting hole on the mounting table, and the first fastener sequentially penetrates through the first mounting hole on the porous nut, the second mounting hole on the bottom printed board and the third mounting hole on the mounting table and then is fixedly connected with the porous nut, the bottom printed board and the shell.

Optionally, the upper left printed board is connected with the first threaded part through a second fastener; the right upper layer printed board is connected with the second threaded portion through a third fastener.

Optionally, a fourth mounting hole is formed in the upper left printed board, and the second fastener is placed in the first internal threaded hole on the first threaded part after passing through the fourth mounting hole; and a fifth mounting hole is formed in the right upper layer printed board, and the third fastener is arranged in the second internal threaded hole in the second threaded part after passing through the fifth mounting hole.

Optionally, the first fastener, the second fastener and the third fastener are countersunk screws.

Compared with the prior art, the utility model has at least the following beneficial effects:

the utility model provides a porous nut and a power module comprising the same, which effectively solve the problems that a plurality of printed boards are arranged in the same shell but the installation heights are different and the positions are discontinuous by the introduction of the porous nut, save the cost, and simultaneously have the advantages of convenient and quick installation and high assembly efficiency; the layout of the printed board is more convenient and flexible, and the porous nut can provide a threaded mounting table at any position according to the requirement, so that the space for mounting elements is avoided; the printed board has large height difference of components and parts, can be installed in a split mode, and can be assembled in a stacked mode, wherein the sizes of the internal threaded holes (the first internal threaded hole and the second internal threaded hole) can be the same or different, so that space is saved, and the external dimension requirement of a customer is met; the mounting table in the shell is provided at a required position, so that the processing cost of the shell is greatly saved;

through the location of pin, avoid porous nut to rotate, porous nut places the different angles and the length of nut main part can realize the provision of the internal thread hole in different positions to satisfy the condition that there is components and parts in printing board lower part, according to the height of components and parts, adjust porous nut's bench height can.

Drawings

In order to more intuitively illustrate the prior art and the utility model, several exemplary drawings are presented below. It should be understood that the specific shape and configuration shown in the drawings are not generally considered limiting conditions in carrying out the utility model; for example, those skilled in the art will be able to make routine adjustments or further optimizations for the addition/subtraction/attribution division, specific shapes, positional relationships, connection modes, dimensional proportion relationships, and the like of certain units (components) based on the technical concepts and the exemplary drawings disclosed in the present utility model.

FIG. 1 is a schematic view of a porous nut according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a porous nut according to an embodiment of the present utility model;

FIG. 3 is a top view and a front view of the device shown in FIG. 1;

FIG. 4 is a schematic diagram of a power supply with a porous nut according to an embodiment of the present utility model;

FIG. 5 is an exploded view of the device shown in FIG. 4;

FIG. 6 is a cross-sectional view as shown in FIG. 4;

FIG. 7 is a schematic diagram of a structure of a plurality of printed boards inside the housing shown in FIG. 4;

FIG. 8 is a second schematic structural view of the printed boards inside the housing shown in FIG. 4;

FIG. 9 is a partial schematic view of the view shown in FIG. 8;

fig. 10 is a schematic view of the structure at the housing shown in fig. 5.

Reference numerals illustrate:

1. a nut body; 11. a mounting part; 111. a first mounting hole; 112. a pin; 12. a first threaded portion; 121. a first internally threaded bore; 122. a first pin hole; 13. a second threaded portion; 131. a second internally threaded bore; 132. a second pin hole; 14. a connecting section;

2. a housing; 21. a cover plate; 22. a mounting table; 221. a third pin hole; 222. a third mounting hole;

3. a bottom layer printed board; 31. positioning holes; 32. a second mounting hole; 4. upper left printed board; 41. a fourth mounting hole; 5. the right upper layer printed board; 45. a fifth mounting hole; 6. a first fastener; 7. a second fastener; 8. a third fastener; 9. a screw; 10. and (5) a common stud.

Detailed Description

The utility model will be further described in detail by means of specific embodiments with reference to the accompanying drawings.

In the description of the present utility model: unless otherwise indicated, the meaning of "a plurality" is two or more. The terms "first," "second," "third," and the like in this disclosure are intended to distinguish between the referenced objects without a special meaning in terms of technical connotation (e.g., should not be construed as emphasis on the degree of importance or order, etc.). The expressions "comprising", "including", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

The terms such as "upper", "lower", "left", "right", "middle", etc. are generally used herein for convenience of visual understanding with reference to the drawings and are not to be construed as absolute limitations on the positional relationship of the actual product. Such changes in the relative positional relationship without departing from the technical idea of the present utility model are also considered as the scope of the present utility model.

The utility model provides a porous nut, as shown in fig. 1-3, comprising a nut main body 1, wherein the nut main body 1 comprises a mounting part 11 positioned at the middle lower part, a first threaded part 12 positioned at the left upper part and a second threaded part 13 positioned at the right upper part, the mounting part 11 is longitudinally provided with a first through mounting hole 111, the first threaded part 12 is longitudinally provided with a first through internal threaded hole 121, and the second threaded part 13 is longitudinally provided with a second through internal threaded hole 131.

In this embodiment, a first pin hole 122 is longitudinally formed in the first threaded portion 12 corresponding to the left side of the first internal threaded hole 121, a second pin hole 132 is longitudinally formed in the second threaded portion 13 corresponding to the right side of the second internal threaded hole 131, a pin 112 is disposed on the mounting portion 11 and on the right side of the first mounting hole 111, one end of the pin 112 extends into the mounting portion 11, and the other end extends out of the mounting portion 11.

Preferably, the centers of the first mounting hole 111, the first internal screw hole 121, the second internal screw hole 131, the first pin hole 122, and the second pin hole 132 are located on the same line, and the line is collinear with the central axis of the nut body 1 in the length direction.

Further preferably, the height of the first screw portion 12 is greater than or equal to the height of the second screw portion 13.

The present utility model also provides a power module, as shown in fig. 4 to 10, comprising: casing 2 and be located apron 21 on casing 2, casing 2 and apron 21 form inside cavity, its characterized in that is provided with three printing boards (PCB board) in the cavity, wherein: one printed board is positioned at the bottom and is marked as a bottom printed board 3, and the other two printed boards are positioned above the bottom printed board 3 and are respectively marked as a left upper printed board 4 and a right upper printed board 5; the upper left printed board 4 and the upper right printed board 5 are connected with the bottom printed board 3 through porous nuts.

Because the outline size of the power supply is determined, the height difference of the components of different printed boards is large, and in the utility model, 3 printed boards are installed in the power supply shell for example.

Preferably, the bottom of the housing 2 is provided with a mounting table 22, a third pin hole 221 (see fig. 10) is formed on the mounting table 22, a positioning hole 31 is formed on the bottom printed board 3, and a pin 112 on the porous nut (specifically, the nut body 1) passes through the positioning hole 31 and is then placed in the third pin hole 221;

the first fastener 6 sequentially passes through the first mounting hole 111 on the porous nut (specifically, the nut body 1), the second mounting hole 32 on the bottom printed board 3 and the third mounting hole 222 on the mounting table 22, and then fixedly connects the porous nut, the bottom printed board 3 and the shell 2.

Further preferably, the upper left printed board 4 is connected with the first screw portion 12 by the second fastener 7; the upper right printed board 5 is connected to the second screw portion 13 by the third fastener 8.

Still further preferably, the upper left printed board 4 is provided with a fourth mounting hole 41, and the second fastening piece 7 passes through the fourth mounting hole 41 and is then placed in the first internal threaded hole 121 on the first threaded portion 12; the right upper layer printed board 5 is provided with a fifth mounting hole 45, and the third fastening piece 8 passes through the fifth mounting hole 45 and is then placed in the second internal threaded hole 131 on the second threaded portion 13.

Preferably, the first fastener 6, the second fastener 7 and the third fastener 8 are countersunk screws 9.

Preferably, four corners of the upper left printed board 4 and four corners of the upper right printed board 5 are connected with the bottom printed board 3 through common studs 10.

When the embodiment is used, the specific steps are as follows:

step one, placing a bottom layer printed board 3 on a mounting table 22 in a shell 2, and placing a porous nut on the bottom layer printed board 3; then, after the pin 112 of the nut main body 1 passes through the positioning hole 31 of the bottom layer printed board 3, the pin is placed in the third pin hole 221 on the mounting table 22;

secondly, coaxially aligning a first mounting hole 111 on a porous nut (specifically, a nut main body 1), a second mounting hole 32 on a bottom printed board 3 and a third mounting hole 222 on a mounting table 22, sequentially penetrating the first mounting hole 111 on the nut main body 1, the second mounting hole 32 on the bottom printed board 3 and the third mounting hole 222 on the mounting table 22 by using a first fastener 6, and then connecting and fixing the porous nut, the bottom printed board 3 and the shell 2; and the components can be distributed on the bottom layer printed board 3;

step three, after the porous nuts in the step two are firmly positioned, sequentially placing the upper left printed board 4 and the upper right printed board 5 on the upper part of the bottom printed board 3, passing the second fastening piece 7 through the fourth mounting hole 41 on the upper left printed board 4 and then placing the second fastening piece in the first internal threaded hole 121 on the nut main body 1 (specifically the first threaded part 12), and passing the third fastening piece 8 through the fifth mounting hole 45 on the upper right printed board 5 and then placing the third fastening piece in the second internal threaded hole 131 on the nut main body 1 (specifically the second threaded part 13);

fourthly, connecting four corners of the upper left printed board 4 with the bottom printed board 3 by using a plurality of common studs 10, and connecting four corners of the upper right printed board 5 with the bottom printed board 3; at this time, the upper left printed board 4 and the upper right printed board 5 are respectively placed on the mounting tables provided by the studs and the porous nuts with different heights; and the upper layer printed board 4 and the upper right layer printed board 5 can be provided with elements;

and fifthly, finally, fixing the cover plate 21 on the shell 2, and finishing the assembly of the complete power module.

In the third step, the order of mounting the upper left printed board 4 and then mounting the upper right printed board 5 may be changed.

In addition, as shown in fig. 3, the heights of the nut mounting tables can be respectively different (i.e., the heights of the upper-left printed board 4 and the upper-right printed board 5 can be different), the sizes of the nut holes can be different, and the extending lengths of the mounting tables 22 can be different; the angle of extension of the mounting table 22 may be any value; the mounting fixing holes (second pin holes 221, positioning holes, etc.) may be counter bores or through holes; the first pin hole and the pin on the porous nut can be added or removed, and the internal threaded hole on the porous nut can be various through holes or other mounting holes.

As shown in fig. 3, the lower part of the first screw part 12, the second screw part 13 and the upper part of the screw part 12 are each provided with a joint part 14, the vertical distance between the upper end surface of the first screw part 12 and the lower end surface of the joint part 14 is denoted by T, and the vertical distance between the lower end surface of the first screw part 12 and the lower end surface of the mounting part 11 is denoted by Q; the vertical distance between the upper end surface of the second screw portion 13 and the lower end surface of the connecting portion 14 is denoted as S, and the vertical distance between the lower end surface of the second screw portion 13 and the lower end surface of the mounting portion 11 is denoted as N; the horizontal distances between the first mounting hole 111 and the first and second internal threaded holes 121, 131 are denoted as M1, M2; when the porous nut is used, the distance of a threaded hole to be provided can be adjusted according to different use environments, the distance to be provided is determined by M values (M1 and M2 values), the heights of objects on the upper left printed board 4 and the upper right printed board 5 are related to T values and S values, and components on the bottom printed board 3 are adjusted according to the heights.

The porous nut can rotate according to the situation, and finally the position is determined through the pin (locating pin) at the bottom of the porous nut; meanwhile, the porous nut can meet the installation and fixation of installed pieces (printed boards) with different heights, and the heights of the multiple printed boards can be different; the first pin hole on the porous nut is a preferable scheme, can be added or removed, and is adjusted according to actual conditions; the sizes of the internal thread holes (the first internal thread hole and the second internal thread hole) may be different, or may be stacked.

The porous nuts are used for enabling the layout of the printed board to be more convenient and flexible, and the porous nuts can be provided with threaded mounting tables at any positions according to requirements, so that the space for mounting elements is avoided; the printed board has large height difference of components and parts, can be installed in a split mode, saves space, meets the requirement of the external dimension of a customer, and is not oversized; the mounting table in the shell is provided at a required position, so that the processing cost of the shell is greatly saved.

Any combination of the technical features of the above embodiments may be performed (as long as there is no contradiction between the combination of the technical features), and for brevity of description, all of the possible combinations of the technical features of the above embodiments are not described; these examples, which are not explicitly written, should also be considered as being within the scope of the present description.

The utility model has been described above with particularity and detail in connection with general description and specific embodiments. It should be understood that numerous conventional modifications and further innovations may be made to these specific embodiments, based on the technical concepts of the present utility model; but these conventional modifications and further innovations may also fall within the scope of the claims of the present utility model as long as they do not depart from the technical spirit of the present utility model.

Claims (9)

1. The utility model provides a porous nut, its characterized in that includes the nut main part, the nut main part is including the installation department that is arranged in lower part, be located the first screw thread portion on upper left portion, be located the second screw thread portion on upper right portion, the first mounting hole of lining up has been seted up along vertically on the installation department, the first internal thread hole of lining up has been seted up along vertically on the first screw thread portion, the second internal thread hole of lining up has been seted up along vertically on the second screw thread portion.

2. The porous nut according to claim 1, wherein a first pin hole is longitudinally provided on the first threaded portion corresponding to the left side of the first internal threaded hole, a second pin hole is longitudinally provided on the second threaded portion corresponding to the right side of the second internal threaded hole, a pin is provided on the mounting portion and on the right side of the first mounting hole, one end of the pin extends into the mounting portion, and the other end extends out of the mounting portion.

3. The multi-hole nut of claim 2, wherein the centers of the first mounting hole, the first internally threaded hole, the second internally threaded hole, the first pin hole, and the second pin hole are on a same line, and the line is collinear with a central axis of the nut body in a length direction.

4. A porous nut according to claim 3, wherein the height of the first threaded portion is greater than or equal to the height of the second threaded portion.

5. A power module, comprising: casing and be located apron on the casing, casing and apron form inside cavity, its characterized in that, be provided with three printing boards in the cavity, wherein: one piece of the printed board is positioned at the bottom and is marked as a bottom layer printed board, and the other two pieces of the printed boards are positioned above the bottom layer printed board and are respectively marked as a left upper layer printed board and a right upper layer printed board; the upper left printed board, the upper right printed board and the bottom printed board are connected through porous nuts, and the porous nuts are the porous nuts according to any one of claims 1-4.

6. The power module according to claim 5, wherein a mounting table is arranged at the bottom of the housing, a third pin hole is formed in the mounting table, a positioning hole is formed in the bottom layer printed board, and a pin on the porous nut passes through the positioning hole and is then placed in the third pin hole;

the novel printed circuit board comprises a porous nut, a bottom printed board, a shell, a first fastener, a second mounting hole, a third mounting hole and a third mounting hole, wherein the first fastener is further provided with the second mounting hole on the bottom printed board, the third mounting hole on the mounting table, and the first fastener sequentially penetrates through the first mounting hole on the porous nut, the second mounting hole on the bottom printed board and the third mounting hole on the mounting table and then is fixedly connected with the porous nut, the bottom printed board and the shell.

7. The power module of claim 6, wherein the upper left printed board is connected to the first threaded portion by a second fastener; the right upper layer printed board is connected with the second threaded portion through a third fastener.

8. The power module of claim 7, wherein a fourth mounting hole is formed in the upper left printed board, and the second fastener is placed in the first internal threaded hole on the first threaded portion after passing through the fourth mounting hole; and a fifth mounting hole is formed in the right upper layer printed board, and the third fastener is arranged in the second internal threaded hole in the second threaded part after passing through the fifth mounting hole.

9. The power module of claim 7 or 8, wherein the first, second, and third fasteners are countersunk screws.