CN210725752U

CN210725752U - Double-layer PCB fixing structure, control switch and electrical equipment

Info

Publication number: CN210725752U
Application number: CN201921683964.5U
Authority: CN
Inventors: 舒国海
Original assignee: TCL Technology Electronics Huizhou Co Ltd
Current assignee: TCL Technology Electronics Huizhou Co Ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-06-09
Anticipated expiration: 2029-10-09

Abstract

The utility model provides a double-deck PCB fixed knot constructs, control switch and electrical equipment, fixed knot constructs including: the PCB comprises an upper shell, a first support part and a second support part, wherein the upper shell is provided with a first groove body for accommodating a first layer of PCB, and the first groove body is internally provided with at least two first support parts and at least two second support parts; and the inferior valve, the inferior valve has the second cell body that holds second floor PCB, the inferior valve is fixed the epitheca just first cell body with the second cell body intercommunication, be equipped with two at least first portions and two at least second portions that compress tightly in the second cell body, wherein, first floor PCB quilt first supporting part reaches first portion of compressing tightly is cliied, second floor PCB quilt the second supporting part reaches the second portion of compressing tightly is cliied. The application provides a double-deck PCB fixed knot constructs, control switch and electrical equipment, has solved among the prior art double-deck PCB assembly fixed inconvenient and the technical problem that production efficiency is low.

Description

Double-layer PCB fixing structure, control switch and electrical equipment

Technical Field

The utility model relates to an electrical equipment field especially relates to a double-deck PCB fixed knot constructs, control switch and electrical equipment.

Background

Along with the rapid development of intelligent electronic products, the functional requirements of the products are more and more, so that the requirements of the functions of the products can be met only by two PCBs (printed circuit boards), and the space utilization rate and the convenience of production and assembly and the assembly cost are improved by considering how to stack the PCBs in the application of the structure. At present, the double-layer PCB is fixed generally through screws, namely, the top PCB is fixed on the upper cover to be assembled into an upper cover assembly, the bottom PCB is fixed on the bottom shell to be assembled into a bottom shell assembly, the DuPont needle connects the two PCBs, and then the upper cover assembly and the bottom shell assembly are assembled to form a main product. However, in the process of buckling the upper cover assembly on the bottom shell assembly, because the hole position of the DuPont needle cannot be seen, blind operation of an operator is needed, once the DuPont needle is askew a bit, the DuPont needle cannot be assembled, the verticality of the DuPont needle needs to be corrected in time, the production efficiency is reduced, and meanwhile, the screw needs to be installed by an electric screwdriver during production and assembly, so that the manual production cost is increased, and the production efficiency is also reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a double-deck PCB fixed knot constructs, control switch and electrical equipment, aim at solving among the prior art double-deck PCB assembly fixed inconvenient and the technical problem that production efficiency is low.

In order to achieve the above object, the present application provides a double-layer PCB fixing structure, the fixing structure including:

the PCB comprises an upper shell, a lower shell and a PCB body, wherein the upper shell is provided with a first groove body for accommodating a first layer of PCB, and at least two first supporting parts and at least two second supporting parts are arranged in the first groove body; and the number of the first and second groups,

the inferior valve, the inferior valve has the second cell body that holds second floor PCB, the inferior valve is fixed the epitheca just first cell body with the second cell body intercommunication, be equipped with two at least first portions and two at least second that compress tightly in the second cell body and compress tightly the portion, wherein, first floor PCB quilt first supporting part reaches first portion of compressing tightly is cliied, second floor PCB quilt the second supporting part reaches the second compresses tightly the portion and cliies.

Optionally, one end of the first supporting portion is fixed at the bottom of the first groove, and the other end of the first supporting portion abuts against one side of the first layer of PCB.

Optionally, one end of the first pressing portion is fixed to the bottom of the second groove, and the other end of the first pressing portion penetrates through the second layer of PCB and abuts against the other side of the first layer of PCB.

Optionally, one end of the second supporting portion is fixed to the bottom of the first groove, and the other end of the second supporting portion penetrates through the first layer of PCB and then abuts against one side of the second layer of PCB.

Optionally, one end of the second pressing portion is fixed to the bottom of the second groove, and the other end of the second pressing portion abuts against the other side of the second layer of PCB.

Optionally, the distance from the free end of the first supporting portion to the bottom surface of the first groove body is a first length, the distance from the free end of the second supporting portion to the bottom surface of the first groove body is a second length, the distance from the free end of the first pressing portion to the bottom surface of the second groove body is a third length, the distance from the free end of the second pressing portion to the bottom surface of the second groove body is a fourth length, wherein the first length is smaller than the second length, and the third length is greater than the fourth length.

Optionally, the first layer PCB and the second layer PCB are connected by a flat cable, one end of the flat cable is plugged with the first layer PCB, and the other end of the flat cable is plugged with the second layer PCB.

Optionally, the upper shell is clamped with the lower shell.

In order to achieve the above object, the present application provides a control switch, including the double-layer PCB fixing structure according to any one of the above embodiments.

To achieve the above object, the present application provides an electrical device including the control switch according to any one of the above embodiments.

Compared with the prior art, the utility model provides an among the technical scheme, compress tightly the mutual pressfitting of portion through the first supporting part that sets up and first portion, second supporting part and second for first layer PCB piles up fixedly with second floor PCB, has reduced the equipment process, has improved work efficiency, has reduced manufacturing cost, simultaneously, has optimized the product structure, has reduced the equipment defective rate, has improved PCB's space utilization.

Drawings

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

Fig. 1 is an exploded view of the embodiment of the double-layer PCB fixing structure of the present invention;

fig. 2 is a schematic structural view of an upper case in an embodiment of the double-layer PCB fixing structure of the present invention;

fig. 3 is a first schematic structural diagram of a lower shell in an embodiment of the double-layer PCB fixing structure of the present invention;

fig. 4 is a second schematic structural view of the lower housing in the embodiment of the double-layer PCB fixing structure of the present invention;

fig. 5 is a schematic cross-sectional view of a double-layer PCB fixing structure according to an embodiment of the present invention;

fig. 6 is another schematic cross-sectional view of the embodiment of the fixing structure of the dual-layer PCB according to the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				1	Upper casing	2	First layer PCB
3	Lower casing	4	Second layer PCB
				5	A first supporting part	6	Second supporting part
7	First pressing part	8	Second pressing part
				9	First trough body	10	Second tank body

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the embodiment of the present application are only used to explain the relative position relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indication is changed accordingly.

In addition, descriptions in this application as to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In addition, technical solutions between the various embodiments of the present application may be combined with each other, but it must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should be considered to be absent and not within the protection scope of the present application.

As shown in fig. 1-6, the embodiment of the present invention provides a double-layer PCB fixing structure, which includes:

the PCB packaging structure comprises an upper shell 1, wherein the upper shell 1 is provided with a first groove body 9 for accommodating a first layer of PCB2, and at least two first supporting parts 5 and at least two second supporting parts 6 are arranged in the first groove body 9; and the number of the first and second groups,

inferior valve 3, inferior valve 3 have the second cell body 10 that holds second floor PCB4, and inferior valve 3 is fixed at last shell 1 and first cell body 9 and second cell body 10 intercommunication, is equipped with at least two first portions of compressing tightly 7 and at least two second portions of compressing tightly 8 in the second cell body 10, and wherein, first floor PCB2 is cliied by first supporting part 5 and first portion of compressing tightly 7, and second floor PCB4 is cliied by second supporting part 6 and second portion of compressing tightly 8.

In the technical solution adopted in this embodiment, in order to avoid the problems of process complexity, poor assembly, low production efficiency and the like caused by the process complexity when the double-layer PCBs are fixed and connected by screws, the first supporting portion 5 and the first pressing portion 7 are provided, and the first layer PCB2 is installed between the first supporting portion 5 and the first pressing portion 7, so that the first supporting portion 5 and the first pressing portion 7 clamp the first layer PCB2, thereby fixing the first layer PCB 2. Similarly, the second supporting portion 6 and the second clamping portion 8 are provided, and the second layer PCB4 is installed between the second supporting portion 6 and the second clamping portion 8, so that the second supporting portion 6 and the second clamping portion 8 clamp the second layer PCB4, and the second layer PCB4 is fixed. The assembly process of the fixing structure is simple, the two layers of PCBs are stacked and fixed without screws, the assembly procedures are reduced, the working efficiency is improved, and the production cost is reduced. In this embodiment, in order to guarantee the stability of connecting and avoid causing the damage to the PCB, can be at the link of first supporting part 5 with first layer PCB2, the link of first clamping part 7 and first layer PCB2, the link of second supporting part 6 and second layer PCB4, the link that second compresses tightly portion 8 and second layer PCB4 sets up an elastic component respectively, the elastic component can adopt rubber etc. to have elastic material, can alleviate the pressure to the PCB, prevent that the PCB from breaking because the atress is too big. It should be noted that printed circuit boards, also called printed circuit boards and printed circuit boards, often abbreviated as pcbs (printed circuit boards), are important electronic components, support bodies for electronic components, and providers for connecting electronic components and circuits. PCB blank is gone up the piece through SMT, or through the whole processing procedure of DIP plug-in components, is called PCBA, the utility model discloses the structure except can fixed connection PCB, also can be used for connecting fixed PCBA.

Further, referring to fig. 2 to 6, one end of the first supporting portion 5 is fixed at the bottom of the first slot 9, and the other end abuts against one side of the first layer of PCB2, and one end of the first pressing portion 7 is fixed at the bottom of the second slot 10, and the other end of the first pressing portion passes through the second layer of PCB4 and abuts against the other side of the first layer of PCB 2.

In the technical scheme adopted by this embodiment, in order to ensure the fixing effect on the first layer PCB2, one end of the first supporting part 5 is fixed with the slot body of the first slot body 9, and the other end of the first supporting part 5 abuts against one end face of the first layer PCB2, so that the first layer PCB2 is supported on one side of the first layer PCB2, and meanwhile, after the lower shell 3 and the upper shell 1 are buckled together, that is, after the lower shell 3 and the upper shell 1 are fixed together, one end of the first pressing part 7 fixedly installed in the second slot body 10 abuts against the other end face of the first layer PCB2, so that the first layer PCB2 is pressed on the other side of the first layer PCB2, and further, by abutting against the first layer PCB2 in two directions, the first layer PCB2 is clamped by the first supporting part 5 and the first pressing part 7, so as to realize the connection and fixation on the first layer PCB 2. In order not to affect the connection and fixation of the second PCB4, the first pressing portion 7 needs to pass through the second PCB4, and a through hole (not shown) for passing the first pressing portion 7 needs to be formed in the second PCB 4.

Further, referring to fig. 2 to 6, one end of the second supporting portion 6 is fixed at the bottom of the first slot 9, the other end of the second supporting portion passes through the first layer of PCB2 and abuts against one side of the second layer of PCB4, one end of the second pressing portion 8 is fixed at the bottom of the second slot 10, and the other end of the second supporting portion abuts against the other side of the second layer of PCB 4.

In the technical scheme adopted in this embodiment, in order to ensure the fixing effect on the second layer PCB4, one end of the second supporting portion 6 is fixed to the bottom of the first slot 9, and the other end of the second supporting portion 6 abuts against one end face of the second layer PCB4, so as to provide a supporting effect on the second layer PCB4 at one side of the second layer PCB4, and meanwhile, after the lower shell 3 is fastened to the upper shell 1, that is, after the lower shell 3 and the upper shell 1 are fixed together, one end of the second pressing portion 8 fixedly installed in the second slot 10 abuts against the other end face of the second layer PCB4, so as to provide a pressing effect on the second layer PCB4 at the other side of the second layer PCB4, and further, by abutting against the second layer PCB4 in two directions, the second layer PCB4 is clamped by the second supporting portion 6 and the second pressing portion 8, so as to realize the connection and fixation on the second layer PCB 4. Note that, in order not to affect the connection and fixation of the first layer PCB2, the second supporting portion 6 needs to pass through the first layer PCB2, and of course, a through hole through which the second supporting portion 6 passes needs to be formed in the first layer PCB 2. Meanwhile, in order to better limit the second layer of PCB4, a limit post may be disposed at one end of the second support part 6 far away from the first groove 9, a limit hole corresponding to the limit post is disposed on the second layer of PCB4, the limit post is inserted into the limit hole, and the end face of the second support part 6 far away from one end of the first groove 9 abuts against the second layer of PCB 4.

Further, referring to fig. 2 to 4, a distance from a free end of the first supporting portion 5 to a bottom surface of the first tank 9 is a first length, a distance from a free end of the second supporting portion 6 to the bottom surface of the first tank 9 is a second length, a distance from a free end of the first pressing portion 7 to a bottom surface of the second tank 10 is a third length, and a distance from a free end of the second pressing portion 8 to a bottom surface of the second tank 10 is a fourth length, wherein the first length is smaller than the second length, and the third length is greater than the fourth length.

In the technical scheme that this embodiment adopted, through the mutual cooperation of first supporting part 5, second supporting part 6, first portion 7 that compresses tightly, the second portion 8 that compresses tightly of height difference, optimized the product structure, improved PCB's space utilization.

Furthermore, the first layer PCB2 is connected to the second layer PCB4 by a flat cable, one end of the flat cable is connected to the first layer PCB2, and the other end is connected to the second layer PCB 4.

In the technical scheme adopted by the embodiment, the circuits between the first layer PCB2 and the second layer PCB4 are connected through the flat cables, so that the operation is easier, the process is further simplified, and the production rate is improved.

Further, the upper case 1 is clamped with the lower case 3.

In the technical scheme adopted by this embodiment, in order to further simplify the process and improve the productivity, the traditional screw fixing mode is replaced by a clamping mode, preferably, a clamping groove is formed in the inner wall of the second groove body 10, a corresponding clamping head is arranged on the outer wall of the first groove body 9, and after the lower shell 3 is buckled on the upper shell 1, the clamping head is clamped into the clamping groove, so that the upper shell 1 and the lower shell 3 are fixedly connected. It should be noted that, in order to further ensure the reliability of the fixation of the upper casing 1 and the lower casing 3, two screws may be used for fixation, and preferably, the two screws are arranged diagonally.

The present application provides a control switch, including the double-layer PCB fixing structure of any of the above embodiments, and the specific structure of the double-layer PCB fixing structure refers to the above embodiments, and since the control switch adopts all the technical solutions of the above embodiments, the control switch at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated here.

The present application provides an electrical apparatus, including the control switch of any of the above embodiments, and the specific structure of the control switch refers to the above embodiments, and as the electrical apparatus employs all technical solutions of the above embodiments, the electrical apparatus at least has all beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.

The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications and equivalents of the technical solutions that can be directly or indirectly applied to other related fields without departing from the spirit of the present application are intended to be included in the scope of the present application.

Claims

1. The utility model provides a double-deck PCB fixed knot constructs which characterized in that, double-deck PCB fixed knot constructs includes:

2. The double-layered PCB fixing structure of claim 1, wherein one end of the first supporting portion is fixed to a groove bottom of the first groove, and the other end abuts against one side of the first-layered PCB.

3. The double-layer PCB fixing structure of claim 2, wherein one end of the first pressing part is fixed at the bottom of the second groove body, and the other end of the first pressing part is abutted against the other side of the first PCB after penetrating through the second PCB.

4. The double-layered PCB fixing structure of claim 1, wherein one end of the second supporting portion is fixed at the bottom of the first groove, and the other end of the second supporting portion abuts against one side of the second PCB after passing through the first PCB.

5. The double-layered PCB fixing structure of claim 4, wherein one end of the second pressing portion is fixed to the bottom of the second groove, and the other end of the second pressing portion abuts against the other side of the second layer PCB.

6. The double-layered PCB fixing structure of claim 1, 3 or 5, wherein a distance from a free end of the first supporting portion to the bottom surface of the first slot is a first length, a distance from a free end of the second supporting portion to the bottom surface of the first slot is a second length, a distance from a free end of the first pressing portion to the bottom surface of the second slot is a third length, and a distance from a free end of the second pressing portion to the bottom surface of the second slot is a fourth length, wherein the first length is smaller than the second length, and the third length is greater than the fourth length.

7. The dual-layer PCB fixing structure of claim 6, wherein the first layer PCB is connected with the second layer PCB through a flat cable, one end of the flat cable is plugged with the first layer PCB, and the other end of the flat cable is plugged with the second layer PCB.

8. The double-layered PCB fixing structure of claim 7, wherein the upper case is snapped with the lower case.

9. A control switch comprising the double-layer PCB fixing structure of any one of claims 1 to 8.

10. An electrical appliance, characterized in that it comprises a control switch according to claim 9.