CN218277265U

CN218277265U - Novel chip digital isolator

Info

Publication number: CN218277265U
Application number: CN202221173307.8U
Authority: CN
Inventors: 朱田浪; 徐茂春; 黄超
Original assignee: Sichuan Guosi Microelectronics Co ltd
Current assignee: Sichuan Guosi Microelectronics Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2023-01-10
Anticipated expiration: 2032-05-16

Abstract

The utility model relates to an isolator field especially relates to a new type chip digital isolator, including the PCB board, the inside of PCB board is provided with the isolated circuit, the transverse groove has all been seted up to the bottom both sides of PCB board, and the middle part of transverse groove has seted up the through-hole, the through-hole runs through the PCB board, the outside fixedly connected with thread bush of through-hole, the inside threaded connection of thread bush has the screw rod, and the bottom rotation of screw rod is connected with the cushion, through the cooperation of transverse groove, cushion, through-hole, thread bush, spring and screw rod that set up, when connecting, it makes the screw rod act on along the vertical removal of thread bush through the threaded connection with the thread bush to rotate the screw rod, the screw rod promotes the cushion and makes the cushion shift out from the inside of transverse groove at the removal in-process, under the restriction of cushion, the PCB board can not contact with the inner shell, thereby make the solder joint of PCB board bottom can directly contact with the inner shell, when fastening the PCB board through the screw rod, make the PCB board exert pressure phenomenon to the solder joint easily, cause the problem of desoldering.

Description

Novel chip digital isolator

Technical Field

The utility model relates to an isolator field especially relates to a novel core piece digital isolator.

Background

The digital isolator is a chip which is used for realizing isolation between an electronic system and a user by transmitting a digital signal and an analog signal and having high resistance isolation characteristic. The isolation is introduced by the designer in order to meet safety regulations or to reduce noise in the ground loop, etc. Galvanic isolation ensures that data transmission is not through electrical connections or leakage paths, thereby avoiding security risks.

Among the present digital isolator, isolating circuit comprises a plurality of chipsets, electric capacity, resistance and triode, the stitch of each part all is fixed in the bottom of PCB board through the mode of soldering, in actual installation, the PCB board can be usually through screw snap-on in the electrical apparatus inner shell, do not establish the difference in height between partial electrical apparatus inner shell and the screw, thereby make the solder joint of PCB board bottom can direct and inner shell contact, when fastening the PCB board through the screw, make the PCB board exert pressure to the solder joint easily, cause the phenomenon of unsoldering, lead to circuit fault.

We propose a new die-based digital isolator to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a novel core piece digital isolator has solved and has not established the difference in height between partial electrical apparatus inner shell and the screw to the solder joint that makes PCB board bottom can be direct and the inner shell contact, when fastening the PCB board through the screw, makes the PCB board exert pressure to the solder joint easily, causes the problem of the phenomenon of desoldering.

The utility model provides a new type chip digital isolator, includes the PCB board, and the inside of PCB board is provided with isolating circuit, the transverse groove has all been seted up to the bottom both sides of PCB board, and the middle part of transverse groove has seted up the through-hole, and the through-hole runs through the PCB board, and the outside fixedly connected with thread bush of through-hole, the inside threaded connection of thread bush has the screw rod, and the bottom of screw rod rotates and is connected with the cushion.

Furthermore, the thickness of the cushion block is consistent with the height of the inner part of the transverse groove, and the side walls of two sides of the cushion block are in contact with the inner wall of the transverse groove.

Further, the outside cover of screw rod is equipped with the spring, and the inner wall of spring and the outer wall laminating of screw rod, the both ends of spring respectively with thread bush and screw rod butt.

Furthermore, the screw rod is T-shaped, and the distance between the bottom end of the transverse part of the screw rod and the top end of the threaded sleeve is consistent with the thickness of the cushion block.

Furthermore, the both sides of PCB board all welded connection have the socket, and the inside of two sets of sockets all is provided with the connecting pin, and the inside of socket is inserted and is equipped with the connecting seat of being connected with the connecting pin, and the top fixedly connected with separated time seat of connecting seat, and the inside of separated time seat has seted up a plurality of groups fixing bolt.

Furthermore, one side of the socket is provided with an inclined extension part, and the connecting seat and the socket are provided with hooks matched with the extension part of the socket at the same side of the extension part.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

1. through the transverse groove that sets up, the cushion, the through-hole, the thread bush, the cooperation of spring and screw rod, when connecting, rotate the screw rod and make the screw rod act on along the vertical removal of thread bush through the threaded connection with the thread bush, the screw rod promotes the cushion at the removal in-process and makes the cushion shift out from the inside of transverse groove, under the restriction of cushion, the PCB board can not contact with the inner shell, it does not establish the difference in height between partial electrical apparatus inner shell and the screw to have solved, thereby make the solder joint of PCB board bottom can directly contact with the inner shell, when fastening the PCB board through the screw, make the PCB board exert pressure to the solder joint easily, cause the problem of desoldering phenomenon.

2. Through the cooperation of the socket that sets up, connecting needle, connecting seat, separated time seat and fixing bolt, when the connecting seat was extracted from the inside of connecting the needle, the socket can cooperate the connecting needle to provide the connection port of whole board, when needs butt joint one by one, through the assembly of connecting seat, separated time seat and fixing bolt and the connection of connecting the needle, can constitute the wiring structure of multiple spot position to better adaptation different connection demands.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic perspective side view of the present invention;

fig. 3 is an enlarged schematic structural view of a point a in fig. 2 according to the present invention;

fig. 4 is an enlarged schematic structural diagram of the position B in fig. 2 of the present invention.

Wherein: 1. a PCB board; 2. a transverse slot; 3. cushion blocks; 4. a through hole; 5. a threaded sleeve; 6. a spring; 7. a screw; 8. a socket; 9. a connecting needle; 10. a connecting seat; 11. a wire distributing base; 12. fixing the bolt; 13. an isolation circuit.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1-4, a novel chip digital isolator comprises a PCB 1, an isolation circuit 13 is arranged inside the PCB 1, transverse grooves 2 are arranged on both sides of the bottom end of the PCB 1, a through hole 4 is arranged in the middle of the transverse groove 2, the through hole 4 penetrates through the PCB 1, a threaded sleeve 5 is fixedly connected to the outside of the through hole 4, a screw rod 7 is connected to the inner thread of the threaded sleeve 5, and a cushion block 3 is rotatably connected to the bottom end of the screw rod 7.

During connection, the screw 7 is rotated to enable the screw 7 to vertically move along the threaded sleeve 5 through the threaded connection effect with the threaded sleeve 5, the screw 7 pushes the cushion block 3 in the moving process to enable the cushion block 3 to move out of the transverse groove 2, and the PCB 1 cannot be in contact with the inner shell under the limitation of the cushion block 3.

The thickness of cushion 3 is highly unanimous with the inside of

transverse groove

2, and 3 both sides lateral wall of cushion contacts with 2 inner walls of transverse groove, and transverse groove 2 can play the spacing effect of accomodating of cushion 3, and inside at transverse groove 2 can be accomodate completely to cushion 3, and simultaneously, transverse groove 2 also can play spacing and guide effect when 3 vertical activities of cushion.

The outside cover of screw rod 7 is equipped with spring 6, and the inner wall of spring 6 and the outer wall laminating of screw rod 7, the both ends of spring 6 respectively with thread bush 5 and screw rod 7 butt, screw rod 7 can play the support limiting displacement to spring 6, avoid spring 6 to receive lateral thrust and deformation damage, simultaneously in spring 6's elastic action west, screw rod 7 can remain the state of labouring all the time to make screw connection state between screw rod 7 and the through-hole 4 inseparabler more.

Screw rod 7 becomes "T" font, and the top interval of screw rod 7's horizontal part bottom apart from thread bush 5 is unanimous with the thickness of cushion 3, and screw rod 7 can promote spring 6 at the rotation in-process and make spring 6 compression deformation, when spring 6 is compressed to minimum form by screw rod 7, under the hindrance of spring 6, screw rod 7 can ' T contact with thread bush 5 to the inside of cushion 3 that makes and screw rod 7 be connected can ' T deviate from transverse groove 2, makes cushion 3 can contract all the time in transverse groove 2.

All welded connection has socket 8 in PCB board 1's both sides, the inside of two sets of sockets 8 all is provided with connecting pin 9, socket 8's inside is inserted and is equipped with the connecting seat 10 of being connected with connecting pin 9, top fixedly connected with separated time seat 11 of connecting seat 10, and a plurality of groups fixing bolt 12 have been seted up to separated time seat 11's inside, when connecting seat 10 is pulled out from connecting pin 9's inside, socket 8 can cooperate connecting pin 9 to provide the connection port of whole board, when needs butt joint one by one, through connecting seat 10, separated time seat 11 and fixing bolt 12's assembly and connecting pin 9's be connected, can constitute the wiring structure of multiple spot position, thereby better different connection demands of adaptation.

One side of the socket 8 is provided with an inclined extending part, the connecting seat 10 and the socket 8 are provided with hooks matched with the extending part of the socket 8 at the same side of the extending part, and the hooks and the extending part can form a clamping connection relationship, so that the connection stability of the socket 8 and the connecting seat 10 is improved.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the preferred embodiments of the present invention are only described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a new core piece digital isolator, includes PCB board (1), and the inside of PCB board (1) is provided with isolating circuit (13) its characterized in that: transverse groove (2) have all been seted up to the bottom both sides of PCB board (1), and the middle part of transverse groove (2) has seted up through-hole (4), and PCB board (1) is run through in through-hole (4), the outside fixedly connected with thread bush (5) of through-hole (4), and the inside threaded connection of thread bush (5) has screw rod (7), and the bottom of screw rod (7) rotates and is connected with cushion (3).

2. The new die digital isolator according to claim 1, wherein: the thickness of the cushion block (3) is consistent with the inner height of the transverse groove (2), and the side walls of two sides of the cushion block (3) are in contact with the inner wall of the transverse groove (2).

3. The new die digital isolator according to claim 1, wherein: the outside cover of screw rod (7) is equipped with spring (6), and the inner wall of spring (6) and the outer wall laminating of screw rod (7), the both ends of spring (6) respectively with thread bush (5) and screw rod (7) butt.

4. The new die digital isolator according to claim 1, wherein: the screw rod (7) is T-shaped, and the distance between the bottom end of the transverse part of the screw rod (7) and the top end of the threaded sleeve (5) is consistent with the thickness of the cushion block (3).

5. The new die digital isolator according to claim 1, wherein: the PCB is characterized in that sockets (8) are welded to two sides of the PCB (1), connecting pins (9) are arranged inside the two groups of sockets (8), connecting seats (10) connected with the connecting pins (9) are inserted into the sockets (8), a distributing seat (11) is fixedly connected to the top end of each connecting seat (10), and a plurality of groups of fixing bolts (12) are arranged inside the distributing seat (11).

6. The new die digital isolator of claim 5, wherein: one side of the socket (8) is provided with an inclined extension part, and the connecting seat (10) and the socket (8) are provided with hooks matched with the extension part of the socket (8) on the same side of the extension part.