CN218103636U

CN218103636U - PCBA is with connecting support structure, controller

Info

Publication number: CN218103636U
Application number: CN202221849838.4U
Authority: CN
Inventors: 杨靖安; 艾秀君
Original assignee: Beijing Jingwei Hirain Tech Co Ltd
Current assignee: Beijing Jingwei Hirain Tech Co Ltd
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2022-12-20
Anticipated expiration: 2032-07-18

Abstract

The utility model discloses a connecting and supporting structure and a controller for PCBA, wherein the connecting and supporting structure for PCBA comprises an insulating supporting body and a conductive insert fixed on the insulating supporting body; the conductive insert penetrates through the insulating support body in the height direction of the insulating support body; the top end surface and the bottom end surface of the conductive insert are respectively protruded out of the insulating support body, the top end surface of the conductive insert is used for being contacted with a ground wire of the top PCBA, the bottom end surface of the conductive insert is used for being contacted with the ground wire of the bottom PCBA, and the conductive insert is provided with a conductive connecting part which is protruded out of the bottom end surface of the conductive insert and is used for being electrically connected with the conductive shell; the conductive insert is provided with a mounting hole for a first screw to pass through, and the mounting hole extends from the top end face of the conductive insert to the bottom end face of the conductive insert; the insulating support body is provided with a fixed knot structure that is used for fixed middle part PCBA. The structure realizes that the ground wires of the top PCBA and the bottom PCBA are electrically connected with the conductive shell while the top PCBA and the bottom PCBA are fixed.

Description

PCBA is with connecting support structure, controller

Technical Field

The utility model relates to the technical field, more specifically say, relate to a PCBA is with connecting support structure, controller.

Background

At present, the controller is developed toward integration and miniaturization. In order to achieve integration and miniaturization of the controller, a plurality of PCBA (printed Circuit Board assemblies) are generally selected to be stacked and connected in sequence to achieve integration of the driving Circuit and the control Circuit simultaneously in a limited space.

In the above controller, each PCBA needs to be fixed on the conductive housing, and at the same time, the ground wires on at least two PCBA need to be electrically connected with the conductive housing, so as to ensure the stability of the electrical performance. This results in a complex internal structure and low integration of the entire controller.

In summary, how to connect the multiple layers of PCBA to simplify the connection structure and improve the integration performance is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a connection support structure for a PCBA to simplify the connection structure of a multi-layer PCBA and improve the integration performance. Another object of the utility model is to provide a controller that includes above-mentioned PCBA is with connecting support structure.

In order to achieve the above object, the utility model provides a following technical scheme:

a connection support structure for a PCBA, comprising:

the insulating support body is fixed on at least one conductive insert of the insulating support body;

wherein, in the height direction of the insulating support body, the conductive insert penetrates through the insulating support body;

the top end surface and the bottom end surface of the conductive insert are respectively protruded out of the insulating support body, the top end surface of the conductive insert is used for being in contact with a ground wire of the top PCBA to realize electric connection, the bottom end surface of the conductive insert is used for being in contact with the ground wire of the bottom PCBA to realize electric connection, the conductive insert is provided with a conductive connecting part protruded out of the bottom end surface of the conductive insert, and the conductive connecting part is used for being electrically connected with the conductive shell;

the conductive insert is provided with a mounting hole for a first screw to pass through, the mounting hole extends from the top end face of the conductive insert to the bottom end face of the conductive insert, and the first screw is used for fixing the top PCBA, the insulating support and the bottom PCBA to the conductive shell;

the insulating support body is provided with the fixed knot who is used for fixed middle part PCBA constructs, middle part PCBA is used for connecting bottom PCBA with top PCBA.

Optionally, the conductive insert and the insulating support are of an insert injection molding structure.

Optionally, the circumferential side wall of the conductive insert is provided with at least one connecting hole, and the connecting hole is used for filling injection molding glue;

if the number of the connecting holes is at least two, the at least two connecting holes are distributed in sequence along the height direction of the conductive insert, and/or the at least two connecting holes are distributed in sequence along the circumferential direction of the conductive insert.

Optionally, the conductive insert has an expanded state and a bent state before being fixed to the insulating support;

the conductive insert is in a flat plate shape when in an unfolded state, and the conductive insert is in a cylindrical shape when in a bent state so as to form the mounting hole.

Optionally, the conductive insert is a stamping part, and/or the connection hole is a strip-shaped hole.

Optionally, the conductive connection part is used for being inserted into the conductive housing, the conductive connection part is plate-shaped, a chamfer is arranged at the bottom end of the conductive connection part, and the angle of the chamfer is 45-70 degrees;

and/or the conductive insert is a copper piece, and a nickel-gold coating is arranged on the outer surface of the copper piece;

and/or, the insulating support body is of a quadrilateral structure, and the four conductive inserts are respectively positioned at four corners of the insulating support body.

Optionally, the insulating support comprises: the insulating support body and the insulating support edge are fixed on the periphery of the insulating support body;

the conductive insert is fixed on the insulating support edge, the fixing structure is arranged on the insulating support main body, the top end of the insulating support edge is higher than the top end of the insulating support main body, and the bottom end of the insulating support edge is lower than the bottom end of the insulating support main body.

Optionally, the fixing structure comprises at least one screw post into which a second screw can be screwed;

and/or the insulating support main body is provided with a first avoidance hole and a second avoidance hole, the first avoidance hole is used for avoiding the inter-board connector of the bottom PCBA, and the second avoidance hole is used for avoiding the high device of the bottom PCBA;

and/or the top surface of the insulating support main body is provided with at least one positioning column, and the positioning column is used for positioning the middle PCBA;

and/or the insulating support body is provided with at least one supporting column, the supporting column protrudes out of the bottom surface of the insulating support body, and the bottom surface of the supporting column is used for being in contact with the bottom PCBA;

and/or a first reinforcing rib is arranged on the periphery of the insulating support edge;

and/or a second reinforcing rib is arranged on the bottom surface of the insulation support main body.

Optionally, the stud post protrudes from a bottom surface of the insulating support body, and the bottom surface of the stud post is for contact with the bottom PCBA;

the number of the screw columns is at least three, and the at least three screw columns are distributed according to three vertex angles of a triangle;

the number of the positioning columns is at least two, the insulating support body is of a quadrilateral structure, and the at least two positioning columns are distributed on the diagonal line of the insulating support body;

the second reinforcing ribs are in a grid shape, and holes and column areas are arranged on the insulating support main body and are hidden; the width and the height of the second reinforcing rib are both 60% -80% of the wall thickness of the insulating support main body.

Based on the aforesaid PCBA who provides uses connection support structure, the utility model also provides a controller, this controller includes: electrically conductive casing, bottom PCBA, middle part PCBA, top PCBA, and any one of the PCBA with connecting support structure.

The utility model provides a connection support structure for PCBA supports and fixes middle part PCBA as the main part through the insulating support body, the top face and the electrically conductive connecting portion of electrically conductive inserts through being fixed in the insulating support body have realized connecting top PCBA's ground wire and electrically conductive casing electricity and have realized connecting bottom PCBA's ground wire and electrically conductive casing electricity through the bottom face and the electrically conductive connecting portion of electrically conductive inserts, and the mounting hole through electrically conductive inserts has realized adopting the screw all to be fixed in electrically conductive casing with top PCBA and bottom PCBA moreover. Like this, whole for PCBA connection support structure when fixed top PCBA and bottom PCBA, realized that top PCBA and bottom PCBA's ground wire all is connected with electrically conductive casing electricity, need not separately fixed PCBA and separately with PCBA ground connection, effectively in order to simplify multilayer PCBA's connection structure, improved the integrated performance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic front view of a connection support structure for a PCBA according to an embodiment of the present invention;

fig. 2 is a schematic back structural view of a connection support structure for a PCBA according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a conductive insert in a connection support structure for a PCBA according to an embodiment of the present invention in a bent state;

fig. 4 is a schematic structural view of a connection support structure for a PCBA according to an embodiment of the present invention, in which a conductive insert is in an expanded state;

FIG. 5 is an assembly view of a connection support structure for a PCBA and a three-layer PCBA provided in accordance with an embodiment of the present invention;

fig. 6 is an exploded view of the structure shown in fig. 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-6, the utility model provides a PCBA is with connecting support structure includes: an insulating support 110, and at least one conductive insert 120 secured to the insulating support 110.

Specifically, the conductive insert 120 penetrates the insulating support 110 in the height direction of the insulating support 110. It can be understood that the height direction of the conductive insert 120 is parallel to the height direction of the insulating support 110.

The top end surface 121 and the bottom end surface 122 of the conductive insert 120 protrude from the insulating support 110, the top end surface 121 of the conductive insert 120 being adapted to contact a ground trace on the top PCBA200 for electrical connection, and the bottom end surface 122 of the conductive insert 120 being adapted to contact a ground trace on the bottom PCBA400 for electrical connection. It will be appreciated that the ground trace of the top PCBA200 is located on the bottom surface of the top PCBA200, and the ground trace of the bottom PCBA400 is located on the top surface of the bottom PCBA 400.

To ensure that the top end surface 121 of the conductive insert 120 makes contact with the ground trace of the top PCBA200, it is desirable to properly set the distance that the top end surface 121 of the conductive insert 120 protrudes from the insulative support 110. Accordingly, to ensure that the bottom end surface 122 of the conductive insert 120 makes contact with the ground trace of the bottom PCBA400, it is desirable to properly set the distance that the bottom end surface 122 of the conductive insert 120 projects from the insulative support 110. Optionally, the distance that the top end surface 121 of the conductive insert 120 protrudes from the insulating support 110 is 1mm to 2mm, and the distance that the bottom end surface 122 of the conductive insert 120 protrudes from the insulating support 110 is 1mm to 2mm.

The conductive insert 120 is provided with a conductive connecting portion 123 protruding from the bottom end surface 122 thereof, and the conductive connecting portion 123 is used for electrically connecting with the conductive housing. It is understood that the conductive connection portion 123 is used to electrically connect with the conductive housing, and the conductive connection portion 123 can also provide a supporting function.

Conductive insert 120 is provided with mounting holes 124 for passing first screws, which are used to secure top PCBA200, insulative support 110, and bottom PCBA400 to the conductive housing, through mounting holes 124 extending from top end face 121 of conductive insert 120 to bottom end face 122 of conductive insert 120. It should be noted that the conductivity of the conductive insert 120 is greater than the conductivity of the first screw to ensure that the conductive insert 120 achieves grounding of the bottom PCBA400 and the top PCBA200.

The above-mentioned insulating support 110 is provided with fixing structures for fixing the middle PCBA300, wherein the middle PCBA300 is used for connecting the bottom PCBA400 and the top PCBA200.

The connection support structure for a PCBA according to the above-described embodiment supports and fixes middle PCBA300 by insulating support 110 as a main body, achieves electrical connection of the ground trace of top PCBA200 and the conductive case by top end face 121 and conductive connection portion 123 of conductive insert 120 fixed to insulating support 110, and achieves electrical connection of the ground trace of bottom PCBA400 and the conductive case by bottom end face 122 and conductive connection portion 123 of conductive insert 120, and achieves fixing of both top PCBA200 and bottom PCBA400 to the conductive case by first screws by mounting holes 124 of conductive insert 120. Like this, whole for PCBA connection support structure when fixed top PCBA200 and bottom PCBA400, realized that top PCBA200 and bottom PCBA 400's ground wire all is connected with electrically conductive casing electricity, need not separately fixed PCBA and separately with PCBA ground connection, effectively in order to simplify multilayer PCBA's connection structure, improved the integration performance.

For ease of production and manufacture, the insulating support 110 is an injection molded part. To improve integration, the conductive insert 120 and the insulating support 110 may be selected to be an insert injection molded structure. Specifically, the conductive insert 120 is placed in an injection mold, and then injection molding is performed to form the insert injection molding structure, so that the conductive insert 120 and the insulating support 110 are fixedly connected in an injection molding manner in the process of injection molding of the insulating support 110, assembly is simplified, and integration performance is also improved.

In practical applications, it is also possible to select to mold the insulating support 110 first and then fixedly connect the conductive insert 120 and the insulating support 110, and the embodiment is not limited to the above embodiments.

As shown in fig. 3 and 4, in order to improve the connection strength between the conductive insert 120 and the insulating support 110, the circumferential sidewall of the conductive insert 120 is provided with at least one connection hole 125, and the connection hole 125 is filled with an injection molding compound.

The connection hole 125 may be a through hole or a blind hole. If the connection hole 125 is a blind hole, the connection hole 125 is disposed on the circumferential outer sidewall of the conductive insert 120, and at this time, the connection hole 125 and the mounting hole 124 are not communicated. If the connection hole 125 is a through hole, the connection hole 125 communicates with the mounting hole 124. In order to improve the connection strength, the connection hole 125 is preferably a through hole.

The number of the connection holes 125 is selected according to actual needs. Generally, the greater the number of the connection holes 125, the higher the connection strength. Therefore, it is preferable that at least two connection holes 125 be provided. In order to improve the force uniformity, at least two connection holes 125 are sequentially distributed along the height direction of the conductive insert 120, and/or at least two connection holes 125 are sequentially distributed along the circumference of the conductive insert 120.

As shown in fig. 3, there are three connection holes 125, in the height direction of the conductive insert 120 (i.e., the vertical direction in fig. 3), the highest connection hole 125 and the middle connection hole 125 are sequentially distributed along the height direction of the conductive insert 120 and are sequentially distributed along the circumferential direction of the conductive insert 120, the highest connection hole 125 and the lowest connection hole 125 are sequentially distributed along the height direction of the conductive insert 120, and the middle connection hole 125 and the lowest connection hole 125 are sequentially distributed along the height direction of the conductive insert 120 and are sequentially distributed along the circumferential direction of the conductive insert 120.

The shape of the connection hole 125 is selected according to actual needs, and the connection hole 125 is, for example, a circular hole, a square hole, an elliptical hole, a strip-shaped hole, or the like. In order to improve the connection strength, the connection hole 125 may be selected to be a strip-shaped hole. Specifically, the connection hole 125 is a kidney-shaped hole, as shown in fig. 4.

To facilitate the production and manufacture of the conductive insert 120, the conductive insert 120 may be selected to have an expanded state and a bent state before being fixed to the insulating support 110. It is to be understood that the resulting conductive insert 120 is produced in an expanded state, as depicted in fig. 4; as shown in fig. 3, the conductive insert 120 is capable of being bent with the conductive insert 120 in a bent state. It will be appreciated that the conductive insert 120 needs to be changed from the expanded state to the bent state before being fixed to the insulating support 110.

As shown in fig. 4, the conductive insert 120 is in a flat plate shape when in an unfolded state; as shown in fig. 3, when the conductive insert 120 is in a bent state, the conductive insert 120 is cylindrical to form the mounting hole 124.

Specifically, the conductive insert 120 in the unfolded state has a first side 127 and a second side 128, and bending the conductive insert 120 causes the first side 127 and the second side 128 to move toward each other, so that the conductive insert 120 is bent into a cylindrical shape, as shown in fig. 3.

As shown in fig. 4, the upper edge 121' of the conductive insert 120 in the unfolded state forms the top end surface 121 of the conductive insert 120 following the bending of the conductive insert 120; the lower edge 122' of the conductive insert 120 in the expanded state forms the bottom end surface 122 of the conductive insert 120 as the conductive insert 120 is bent.

To facilitate control of the bending of the conductive insert 120, the upper edge 121' of the conductive insert 120 in the expanded state may optionally have a notch 126, as shown in fig. 4, so long as it is ensured that the second edge 128 is bent to the side of the notch 126 away from the first edge 127.

The size of the gap 126 is selected according to actual needs, and this embodiment is not limited to this.

To fabricate the conductive insert 120, the conductive insert 120 may be selected to be a stamped part. Of course, the conductive insert 120 can be made by other methods, and is not limited to the above embodiment.

In the above-described connection support structure for a PCBA, the conductive insert 120 realizes grounding of the top PCBA200 and the bottom PCBA400, and in order to improve the grounding effect, it is necessary to increase the conductivity of the conductive insert 120. Specifically, the conductive insert 120 is a copper piece, and a nickel-gold coating is disposed on an outer surface of the copper piece. Of course, the conductive insert 120 may be made of other materials and provided with other coatings as long as the grounding is ensured to meet the requirement, which is not limited in this embodiment.

In the above connection support structure for PCBA, the conductive connection portion 123 is used to electrically connect with the conductive housing to ensure grounding. To simplify installation, the electrically conductive connection 123 can optionally be plugged into the electrically conductive housing, so that an electrical connection is made by plugging.

For the convenience of plugging, the conductive connection portion 123 is plate-shaped, and a bottom end of the conductive connection portion 123 has a chamfer. The angle of the chamfer is selected according to actual needs, for example, the angle of the chamfer is 45 ° to 70 °, which is not limited in this embodiment.

In practical applications, the conductive connection portion 123 may have other shapes, and the conductive connection portion 123 is electrically connected to the conductive housing by other methods, which is not limited to the above embodiments.

In the above connection support structure for PCBA, the conductive insert 120 may be selected to have only one state, i.e., a cylindrical shape, and is not limited to the above embodiment.

Since the PCBA has a generally quadrilateral configuration, the insulating support 110 may be selected to have a quadrilateral configuration, and for improved stability, the conductive inserts 120 are four and are respectively located at four corners of the insulating support 110, i.e., one conductive insert 120 is located at each corner of the insulating support 110.

To facilitate supporting top PCBA200 and middle PCBA300, the above-described insulating support 110 includes: an insulating support body 110a, and an insulating support rim 110b fixed to the outer periphery of the insulating support body 110a.

The conductive insert 120 is fixed to the insulating support edge 110b, the fixing structure is disposed on the insulating support body 110a, a top end of the insulating support edge 110b is higher than a top end of the insulating support body 110a, and a bottom end of the insulating support edge 110b is lower than a bottom end of the insulating support body 110a. It will be appreciated that the top end surface 121 and the bottom end surface 122 of the conductive insert 120 protrude from the insulating support edge 110b.

In the above-mentioned insulating support body 110, the top end of the insulating support edge 110b is higher than the top end of the insulating support body 110a, and there is a certain gap between the top surface of the insulating support edge 110b and the bottom surface of the top PCBA200 to ensure that the bottom of the top PCBA200 and the top end surface 121 of the conductive insert 120 can contact preferentially; moreover, insulative support rim 110b and insulative support body 110a form a receiving cavity for receiving central PCBA300, increasing the overall structural compactness. It will be appreciated that middle PCBA300 is secured to insulative support body 110a.

In the above-described insulating support body 110, the bottom end of the insulating support rim 110b is lower than the bottom end of the insulating support body 110a, and there is a certain gap between the bottom surface of the insulating support rim 110b and the top surface of the bottom PCBA400 to ensure that the top surface of the bottom PCBA400 and the bottom end surface 122 of the conductive insert 120 can preferentially contact; moreover, insulating support edge 110b and insulating support body 110a form a receiving cavity for receiving devices on bottom PCBA400, thereby improving the compactness of the overall structure, facilitating the distance between bottom PCBA400 and middle PCBA300, and facilitating the connection between bottom PCBA400 and middle PCBA300.

To facilitate securing of the middle PCBA300, the securing structure includes at least one screw post 150 into which a second screw can be threaded. It will be appreciated that screw posts 150 are used to secure middle PCBA300. The middle PCBA300 is provided with first fixing holes 320 through which second screws pass, as shown in fig. 6.

One or more screw posts 150 may be provided. In order to improve the stability, the number of the screw columns 150 is at least three, and the at least three screw columns 150 are distributed according to three top angles of a triangle. Thus, the warpage of the central PBCA300 is effectively improved and fixed on the supporting surface.

The screw post 150 may have a hollow structure or a solid structure. Specifically, for convenience of manufacturing and screwing the second screw, the screw post 150 is a hollow structure, that is, the screw post 150 has a second fixing hole for screwing the screw. If the screw post 150 is a solid structure, the second screw is a self-tapping screw.

Since the height, i.e., the thickness, of the insulating support body 110a is small as described above, the screw post 150 is usually selected to protrude from the bottom surface of the insulating support body 110a. To enhance the support effect, the bottom surface of the post 150 is adapted to contact the bottom PCBA400, such that the post 150 serves the dual purpose of securing and supporting the middle PCBA300. It will be appreciated that the stud posts 150 need to avoid devices on the bottom PCBA 400.

The shape of the screw post 150 is selected according to actual needs, for example, the cross section of the screw post 150 is circular or square, which is not limited in this embodiment. It will be appreciated that the cross-section of the screw post 150 is perpendicular to the height direction of the screw post 150.

In practice, the central PCBA300 may be supported by other structures. Specifically, the insulative support body 110a is provided with at least one support post 160, the support post 160 protruding out of the bottom surface of the insulative support body 110a, and the bottom surface of the support post 160 being for contact with the bottom PCBA 400. Thus, support column 160 provides support for center PCBA300 by the bottom surface of support column 160 contacting bottom PCBA 400. It will be appreciated that support posts 160 described above need to avoid components on bottom PCBA 400.

The number and distribution of support posts 160 is selected as desired, so long as central PCBA300 is more stably and uniformly supported. As shown in fig. 1 and 2, the number of the support columns 160 is two.

The supporting column 160 may be a hollow structure or a solid structure, and is selected according to actual needs, which is not limited in this embodiment. The cross section of the supporting column 160 may be circular, square or other shapes, which is not limited in this embodiment. It will be appreciated that the cross-section is perpendicular to the axial direction of the support column 160.

In the above connection support structure for PCBA, in order to facilitate fixing of the middle PCBA300, the top surface of the insulating support body 110a is provided with at least one positioning post 140, which positioning post 140 is used for positioning the middle PCBA300. As shown in fig. 6, middle PCBA300 is provided with positioning holes 310 for positioning engagement with positioning posts 140.

The number of the positioning posts 140 may be one or more than two. The greater the number of positioning posts 140, the better the positioning effect, and the more convenient it is to fix the middle PCBA300. Therefore, at least two positioning posts 140 can be selected. If the main insulating support body 110a has a quadrilateral structure, at least two positioning pillars 140 are distributed on the diagonal of the main insulating support body 110a. Thus, the rotation of the central PCBA300 in the supporting surface can be limited to the maximum extent, and the positioning effect can be improved on the basis of fewer positioning columns 140, so that the structure is simplified.

The shape of the positioning column 140 is selected according to actual needs, for example, the positioning column 140 is a straight cylinder, a circular truncated cone, or a conical shape, which is not limited in this embodiment.

The middle PCBA300 described above is used to connect the bottom PCBA400 and the top PCBA200, specifically, the bottom PCBA400 and the middle PCBA300, and the middle PCBA300 and the top PCBA200. To facilitate connection of the bottom PCBA400 and the middle PCBA300, the bottom PCBA400 is provided with board-to-board connectors 420 for connection with the middle PCBA300, and the middle PCBA300 is provided with connection means for connection with the top PCBA200. To facilitate mounting and connection, the insulating support body 110a is provided with a first relief hole 170, the first relief hole 170 being for relieving the board-to-board connector 420 of the bottom PCBA 400.

The number, size, shape and distribution of the first avoiding holes 170 need to be set according to the board-to-board connectors 420, and the first avoiding holes are arranged as orderly as possible to simplify the design of the circuit.

In practice, where there are taller features, i.e., tall features, in bottom PCBA400, to ensure installation, insulative support body 110a is provided with second relief holes 180, second relief holes 180 for relieving tall features of bottom PCBA 400. It should be noted that the tall components of bottom PCBA400 are not shown in the figures.

The number, size, shape and distribution of the second avoiding holes 180 need to be set according to high devices, and the second avoiding holes are arranged orderly as much as possible to simplify the design of the circuit.

In the above connection support structure for PCBA, the insulating support 110 plays a main supporting role, and in order to improve the supporting strength and rigidity, the insulating support 110 may be optionally provided with reinforcing ribs. Specifically, as shown in fig. 1, the insulating support edge 110b is provided with a first reinforcing rib 130 along a circumferential direction thereof; and/or, as shown in fig. 2, the bottom surface of the insulation support main body 110a is provided with a second reinforcing rib 190.

The first reinforcing ribs 130 may be formed on the top and/or bottom surfaces of the insulation support body 110a, and are selected according to actual needs.

The shape and size of the first reinforcing member 130 are selected according to actual needs, and this embodiment is not limited thereto.

The type of the second reinforcing ribs 190 is selected according to actual needs. In order to enhance the reinforcing effect, as shown in fig. 2, the second reinforcing rib 190 has a grid shape, and the second reinforcing rib 190 is hidden in a region where the insulating support main body 110a is provided with the holes and the pillars. It will be appreciated that the second reinforcing bead 190 is hidden in the area of the holes and posts as the second reinforcing bead 190 extends into the area of the holes and posts. The holes may be the first avoiding hole 170 and the second avoiding hole 180. The posts may be support posts 160, screw posts 150.

In practice, the holes or posts may alternatively be in the cells of the second reinforcing ribs 190.

The size of the second reinforcing rib 190 may be set according to the thickness of the insulating support body 110a. Optionally, the width of the second reinforcing rib 190 is 60% to 80% of the wall thickness of the insulation support main body 110a, and the height of the second reinforcing rib 190 is 60% to 80% of the wall thickness of the insulation support main body 110a. Thus, the strength of the insulating support body 110a can be effectively enhanced, and simultaneously, the shrinkage uniformity of the insulating support body 110a is ensured, and the appearance of the second reinforcing rib 190 is improved.

It should be noted that the wall thickness of the insulating support body 110a is the distance between the top surface and the bottom surface of the insulating support body 110a. The height direction of the insulation support main body 110a is the height direction of the entire insulation support body 110, and the height direction of the second reinforcing rib 190 is the height direction of the insulation support main body 110a.

The shape of the cell of the second reinforcing rib 190 is selected according to actual needs, and the cell is a quadrangle, a hexagon, a pentagon, an octagon, or the like, which is not limited in this embodiment.

In practical applications, the second reinforcing ribs 190 may have other structures, and are not limited to the grid shape.

Based on the connection support structure for the PCBA provided in the above embodiment, the present embodiment further provides a controller, including: conductive housing, bottom PCBA400, middle PCBA300, top PCBA200, and connection support structure 100 for a PCBA as provided by the embodiments described above. Wherein, the conductive shell can be a metal shell.

Bottom PCBA400 is connected by middle PCBA300 and top PCBA200. Bottom PCBA400 and top PCBA200 are all fixed in electrically conductive casing through first screw and above-mentioned PCBA is with connecting support structure 100, specifically, top PCBA200 is provided with the third fixed orifices 210 that supplies first screw to pass, and bottom PCBA400 is provided with the fourth fixed orifices 410 that supplies first screw to pass, and first screw is fixed in electrically conductive casing after passing third fixed orifices 210, mounting hole 124 and fourth fixed orifices 410 in proper order.

The ground wires of both the bottom PCBA400 and the top PCBA200 are electrically connected to the conductive housing through the conductive insert 120. To facilitate passage of the conductive connection 123 of the conductive insert 120 through the bottom PCBA400, the bottom PCBA400 may optionally be provided with a third relief hole 430 that relieves the conductive connection 123.

The assembling sequence of the controller is as follows: firstly, mounting the bottom PCBA400 on a conductive shell; then pressing the PCBA on the bottom PCBA400 by using the connecting and supporting structure 100, and simultaneously pressing the conductive connecting parts 123 of the conductive inserts 120 at the four corners of the insulating support body 110 into the conductive shell; then, the middle PCBA300 is installed, the middle PCBA300 is fixed through punching of second screws, and the inter-board connector 420 of the bottom PCBA400 is welded with the middle PCBA300 through the first avoidance hole 170; mounting the top PCBA200 and welding the connectors 420 between the plates; finally, first screws are driven into the mounting holes 124 of the four conductive inserts 120, and the top PCBA200, middle PCBA300, bottom PCBA400, and PCBA are secured to the conductive housing using the connection support structure 100.

Since the connection support structure 100 for the PCBA has the above technical effects and the controller includes the connection support structure 100 for the PCBA, the controller also has corresponding technical effects, which is not described in detail herein.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connection support structure for a PCBA, comprising:

the conductive insert is provided with mounting holes for first screws to pass through, the mounting holes extend from the top end face of the conductive insert to the bottom end face of the conductive insert, and the first screws are used for fixing the top PCBA, the insulating support and the bottom PCBA to the conductive shell;

the insulating support body is provided with the fixed knot who is used for fixed middle part PCBA and constructs, middle part PCBA is used for connecting bottom PCBA with top PCBA.

2. A connecting support structure for a PCBA as claimed in claim 1, wherein the conductive insert and the insulating support are insert injection moulded structures.

3. The connection support structure for the PCBA as recited in claim 2, wherein the circumferential side wall of the conductive insert is provided with at least one connection hole for filling injection molding glue;

4. A connection support structure for a PCBA as claimed in claim 3, wherein the conductive insert has an expanded state and a bent state prior to being secured to the insulating support body;

5. A connection support structure for a PCBA as claimed in claim 4, wherein the conductive insert is a stamped part and/or the connection aperture is a strip-shaped aperture.

6. A connection support structure for a PCBA as claimed in claim 1,

the conductive connecting part is used for being inserted into the conductive shell, the conductive connecting part is plate-shaped, a chamfer is arranged at the bottom end of the conductive connecting part, and the angle of the chamfer is 45-70 degrees;

7. A connection support structure for a PCBA as claimed in claim 1,

the insulating support includes: the insulating support body and the insulating support edge are fixed on the periphery of the insulating support body;

8. A connection support structure for a PCBA as claimed in claim 7,

the fixing structure comprises at least one screw column into which a second screw can be screwed;

9. A connection support structure for a PCBA as claimed in claim 8,

the screw column protrudes out of the bottom surface of the insulating support main body, and the bottom surface of the screw column is used for being in contact with the bottom PCBA;

10. A controller, comprising: a conductive housing, a bottom PCBA, a middle PCBA, a top PCBA, and a connection support structure for a PCBA as claimed in any one of claims 1 to 9.