CN222146606U - Spring sheet, circuit board assembly and electronic device - Google Patents
Spring sheet, circuit board assembly and electronic device Download PDFInfo
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- CN222146606U CN222146606U CN202420815548.0U CN202420815548U CN222146606U CN 222146606 U CN222146606 U CN 222146606U CN 202420815548 U CN202420815548 U CN 202420815548U CN 222146606 U CN222146606 U CN 222146606U
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- elastic arm
- arm
- contact portion
- elastic
- circuit board
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
Abstract
本实用新型实施例涉及电子设备技术领域,尤其公开了一种弹片、电路板组件及电子装置，弹片包括固定座和弹片件，弹片件包括第一弹性臂、第二弹性臂、接触部和支撑部，第一弹性臂的一端与固定座连接，第一弹性臂沿第一方向延伸，第二弹性臂的一端与第一弹性臂的另一端连接，第二弹性臂的一端沿第二方向弯折延伸，接触部的一端与第二弹性臂的另一端连接，接触部弯折，以使接触部的另一端朝向第一弹性臂，支撑部的一端与接触部的另一端连接，支撑部的另一端朝向第一弹性臂延伸，第一方向和第二方向相反；支撑部的另一端用于在接触部受到电子元器件抵压时抵接第一弹性臂以支撑接触部。弯折结构使得弹片在受力时应力分散，提高了弹片的稳定性和耐用性。
The embodiment of the utility model relates to the technical field of electronic equipment, and in particular discloses a spring, a circuit board assembly and an electronic device, wherein the spring comprises a fixing seat and a spring piece, the spring piece comprises a first elastic arm, a second elastic arm, a contact portion and a support portion, one end of the first elastic arm is connected to the fixing seat, the first elastic arm extends along a first direction, one end of the second elastic arm is connected to the other end of the first elastic arm, one end of the second elastic arm is bent and extended along a second direction, one end of the contact portion is connected to the other end of the second elastic arm, the contact portion is bent so that the other end of the contact portion faces the first elastic arm, one end of the support portion is connected to the other end of the contact portion, the other end of the support portion extends toward the first elastic arm, and the first direction and the second direction are opposite; the other end of the support portion is used to abut the first elastic arm to support the contact portion when the contact portion is pressed by an electronic component. The bending structure disperses the stress of the spring when it is subjected to force, thereby improving the stability and durability of the spring.
Description
Technical Field
The embodiment of the utility model relates to the technical field of electronic equipment, in particular to a spring plate, a circuit board assembly and an electronic device.
Background
In the SMT (Surface Mounted Techno l ogy, surface mount technology) chip mounting process, the solder clips are used as key components, and the performance of the solder clips directly affects the connection quality and stability between the electronic component and the PCB (PR I NTED CI rcu it Board). With miniaturization and complexity of electronic devices, requirements for welding the spring structures are also increasing. The prior SMT elastic sheet is mainly designed in a single-piece extending way.
In the process of implementing the embodiment of the present application, as shown in fig. 1, the inventor finds that the monolithic elastic sheet 1 generally includes a fixing base 11 and an elastic arm 12 bent and extended from the fixing base 11, where the fixing base 11 is welded to the PCB (2), the other end of the elastic arm 12 away from the fixing base 11 is used for supporting an electronic component, and when the electronic component supports against the elastic arm 12, stress is concentrated at a bending position of the elastic arm 12, so that the bending position of the elastic arm 12 is easily broken.
Disclosure of utility model
In view of the above, embodiments of the present utility model provide a spring, a circuit board assembly and an electronic device, which overcome or at least partially solve the above-mentioned problems.
In order to solve the technical problems, the technical scheme adopted by the utility model is that the elastic sheet comprises a fixed seat and an elastic sheet piece. The elastic piece comprises a first elastic arm, a second elastic arm, a contact part and a supporting part, wherein one end of the first elastic arm is connected with the fixing seat, the first elastic arm extends along a first direction, one end of the second elastic arm is connected with the other end of the first elastic arm, one end of the second elastic arm is bent and extended along a second direction, one end of the contact part is connected with the other end of the second elastic arm, the contact part is bent and arranged so that the other end of the contact part faces the first elastic arm, one end of the supporting part is connected with the other end of the contact part, the other end of the supporting part faces the first elastic arm, the first direction is opposite to the second direction, and the other end of the supporting part is used for abutting against the first elastic arm when the contact part is pressed by an electronic component so as to support the contact part.
Optionally, the first elastic arm includes first arm of force and second arm of force, the one end of first arm of force with the fixing base slope is connected, the other end of first arm of force with the one end of second arm of force is connected, the other end of second arm of force with the one end of second elastic arm is connected.
Optionally, the second elastic arm includes a third force arm and a fourth force arm, one end of the third force arm is connected with the other end of the second force arm in a bending way, the other end of the third force arm is connected with one end of the fourth force arm in an inclined way, and the other end of the fourth force arm is connected with one end of the contact portion.
Optionally, the supporting part is kept away from the other end bending arrangement of contact portion, the kink of supporting part bending is used for when the contact portion receives electronic components to support the pressure, the butt first elastic arm.
Optionally, the fixing base includes arc, first plate body and second plate body, the both ends of arc respectively with the one end of first plate body with the one end of second plate body is connected, first plate body and second plate body parallel arrangement, the other end of second plate body with the one end of first elastic arm is connected.
Optionally, the first board body is provided with a through hole, and the through hole is used for filling soldering tin when the first board body is welded on the circuit board.
Optionally, the number of the through holes is at least two, and at least two through holes are uniformly distributed in the first plate body.
Optionally, the spring plate further comprises two connecting pieces, and two ends of the connecting piece are respectively connected with one spring plate.
In order to solve the technical problem, the utility model adopts another technical scheme that the circuit board assembly comprises a circuit board, an electronic component and the elastic sheet, wherein the fixing seat is fixed on the circuit board, the electronic component is propped against the contact part of the elastic sheet, and the electronic component is connected with the circuit board through the elastic sheet.
In order to solve the technical problem, the utility model adopts a further technical scheme that the electronic device is provided and is characterized by comprising the circuit board assembly.
The elastic sheet, the electric plate assembly and the electronic device have the advantages that the elastic sheet comprises a fixed seat and an elastic sheet piece, the elastic sheet piece comprises a first elastic arm, a second elastic arm, a contact part and a supporting part, one end of the first elastic arm is connected with the fixed seat, the first elastic arm extends along a first direction, one end of the second elastic arm is connected with the other end of the first elastic arm, one end of the second elastic arm is bent and extended along a second direction, one end of the contact part is connected with the other end of the second elastic arm, the contact part is bent and arranged so that the other end of the contact part faces the first elastic arm, one end of the supporting part is connected with the other end of the contact part, the other end of the supporting part faces the first elastic arm, the first direction is opposite to the second direction, and the other end of the supporting part is used for abutting against the first elastic arm to support the contact part when the contact part is pressed by an electronic component. Through the mode, the bending structure enables the stress of the elastic sheet to be dispersed when the elastic sheet is stressed, and stability and durability of the elastic sheet are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a prior art spring and circuit board;
FIG. 2 is a block diagram of a spring plate according to an embodiment of the present utility model;
FIG. 3 is a side view of a dome according to an embodiment of the present utility model;
FIG. 4 is a bottom view of a spring plate according to an embodiment of the present utility model;
FIG. 5 is a rear view of a dome according to an embodiment of the present utility model;
Fig. 6 is a side view of a circuit board assembly of an embodiment of the present utility model with its components disassembled.
Detailed Description
In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.
Referring to fig. 2, the spring plate 3 includes a fixing base 31, a spring plate member 32 and a connecting member 33, two ends of the connecting member 33 are respectively connected with the spring plate member 32, the fixing base 31 is used for fixing the spring plate 3 on a circuit board, one end of the spring plate member 32 is connected with the fixing base 31, the other end of the spring plate member 32 is used for contacting and connecting with an electronic component, and the spring plate 3 is used for connecting the electronic component with the circuit board.
For the above-mentioned fixing base 31, please refer to fig. 3 and 4, the fixing base 31 includes an arc plate 311, a first plate 312 and a second plate 313, two ends of the arc plate 311 are respectively connected with one end of the first plate 312 and one end of the second plate 313, the first plate 312 and the second plate 313 are arranged in parallel, and the other end of the second plate 313 is connected with one end of the spring piece 32. The arc plate 311 plays a role in buffering force transmission between the first plate body 312 and the second plate body 313, and improves stability of the fixing seat 31. The first plate 312 is provided with a through hole 3120, and the through hole 3120 is used for filling solder when the first plate 312 is welded with the circuit board, and compared with direct welding, the arrangement of the through hole 3120 forms a more stable welding point, thereby improving the connection strength of the first plate 312 and the circuit board.
In some embodiments, the surface of the second plate 313 facing away from the first plate 312 serves as a suction surface that mates with a suction head of an automated chip mounter in an SMT process so that the spring sheet 3 can be precisely positioned, sucked and placed in a correct position.
In some embodiments, the number of the through holes 3120 is at least two, and the at least two through holes 3120 are uniformly distributed in the first plate 312.
It is to be understood that the fixing base 31 is not limited to the above structure, and may have other structures, for example, the fixing base 31 includes only the first plate 312, and the first plate 312 is obliquely connected to the first elastic arm 321.
For the spring piece 32, referring to fig. 3, the spring piece 32 includes a first elastic arm 321, a second elastic arm 322, a contact portion 323 and a supporting portion 324, wherein one end of the first elastic arm 321 is connected with the fixing seat 31, the first elastic arm 321 extends along a first direction z, one end of the second elastic arm 322 is connected with the other end of the first elastic arm 321, one end of the second elastic arm 322 extends along a second direction, one end of the contact portion 323 is connected with the other end of the second elastic arm 322, the contact portion 323 is bent so that the other end of the contact portion 323 faces the first elastic arm 321, one end of the supporting portion 324 is connected with the other end of the contact portion 323, the other end of the supporting portion 324 extends towards the first elastic arm 321, and the other end of the supporting portion 324 is used for abutting against the first elastic arm 321 when the contact portion 323 is pressed by an electronic component, so as to support the contact portion 323. Wherein the first direction z and the second direction are opposite.
Further, the first resilient arm 321 includes a first force arm 3211 and a second force arm 3212, and the second resilient arm 322 includes a third force arm 3221 and a fourth force arm 3222. One end of the first force arm 3211 is obliquely connected with the second plate 313, the other end of the first force arm 3211 is connected with one end of the second force arm 3212, the other end of the second force arm 3212 is bent and connected with one end of the third force arm 3221, the other end of the third force arm 3221 is obliquely connected with one end of the fourth force arm 3222, the other end of the fourth force arm 3222 is connected with one end of the contact portion 323, the other end of the contact portion 323 faces the second force arm 3212, the other end of the contact portion 323 is connected with one end of the supporting portion 324, and the other end of the supporting portion 324, which is far away from the contact portion 323, is bent and provided with a bending portion 3241. When the electronic component abuts against the pressing contact portion 323, stress is generated by the pressing contact portion 323, the stress is dispersed to each part of the elastic piece 32, so that stress concentration is avoided, structural stability and durability of the elastic piece 3 are effectively improved, meanwhile, the supporting portion 324 is driven by the pressing contact portion 323 to move towards the second force arm 3212 until the bending portion 3241 abuts against the second force arm 3212, and the second force arm 3212 provides positive elastic force for supporting the bending portion 3241, so that structural stability of the elastic piece 3 is further improved.
In some embodiments, the connection between the first force arm 3211 and the second plate 313, the connection between the first force arm 3211 and the second force arm 3212, and the connection between the third force arm 3221 and the fourth force arm 3222 are all arc-shaped, so as to enhance the elastic performance of the elastic sheet 3.
It should be noted that, referring to fig. 5, in the embodiment of the application, the number of the spring elements 32 is two, and two ends of the connecting element 33 are respectively connected to the second arms 3212 of one spring element 32. The provision of the two spring pieces 32 increases the contact area, and improves the conduction efficiency of the spring pieces and the electronic components with respect to the single contact portion. The connecting piece 33 enhances the structural stability of the two spring pieces 32, reduces the deformation risk, and simultaneously, the two spring pieces 32 are relatively independent, so that the respective elastic performance is not affected.
It is to be understood that the spring piece 32 is not limited to the above structure, and other structures are also possible, for example, a single spring piece 32 includes more spring arms, or the number of spring pieces 32 is three or more, and the connecting pieces 33 are disposed between the spring pieces 32.
The elastic sheet 3 is made of elastic conductive material.
In the embodiment of the utility model, the elastic sheet 3 comprises a fixing seat 31 and an elastic sheet member 32, the elastic sheet member 32 comprises a first elastic arm 321, a second elastic arm 322, a contact portion 323 and a support portion 324 which are sequentially connected, the connection ends of the first elastic arm 321 and the second elastic arm 322 and the contact portion 323 are all bent, the support portion 324 faces to the first elastic arm 321, when the contact portion 323 is stressed, the continuously bent structure can effectively disperse stress, the contact portion 323 drives the support portion 324 to abut against the first elastic arm 321, and the first elastic arm 321 generates forward elastic force to the support portion 324, so that the structural stability and durability of the elastic sheet 3 are improved.
The present utility model further provides an embodiment of a circuit board assembly 1000, please refer to fig. 6, the circuit board assembly 1000 includes a circuit board 2, an electronic component 4 and the spring plate 3, and the structure and the function of the spring plate 3 can be referred to the above embodiment, which is not described herein again. The first board body 312 of the fixing base 31 is used for fixing to the circuit board 2, and the electronic component 4 is further connected to the circuit board 2 by pressing the contact portion 323 of the spring plate 3.
The present utility model further provides an embodiment of an electronic device, where the electronic device includes the above-mentioned circuit board assembly 1000, and the structure and the function of the circuit board assembly 1000 can be referred to the above-mentioned embodiment, and are not described in detail herein.
It should be noted that while the present utility model has been illustrated in the drawings and described in connection with the preferred embodiments thereof, it is to be understood that the utility model may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but are to be construed as providing a full breadth of the disclosure. The above technical features are further combined with each other to form various embodiments which are not listed above and are all considered as the scope of the present utility model described in the specification, further, the improvement or transformation can be carried out by the person skilled in the art according to the above description, and all the improvements and transformation shall fall within the protection scope of the appended claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420815548.0U CN222146606U (en) | 2024-04-18 | 2024-04-18 | Spring sheet, circuit board assembly and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420815548.0U CN222146606U (en) | 2024-04-18 | 2024-04-18 | Spring sheet, circuit board assembly and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222146606U true CN222146606U (en) | 2024-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420815548.0U Active CN222146606U (en) | 2024-04-18 | 2024-04-18 | Spring sheet, circuit board assembly and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222146606U (en) |
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2024
- 2024-04-18 CN CN202420815548.0U patent/CN222146606U/en active Active
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