Disclosure of Invention
The invention mainly aims to provide a circuit pipeline connecting structure and a respirator, and aims to solve the technical problem that the existing respirator pipeline and circuit are staggered, complex and inconvenient to install.
In order to achieve the above object, the circuit pipeline connecting structure provided by the present invention is applied to a ventilator, the ventilator includes an upper cover assembly, a lower cover assembly and a PCBA, and the circuit pipeline connecting structure includes:
the pressure sensor joint is arranged on the lower cover component and comprises a pipeline connecting end and a pressure sensor connecting end, the pipeline connecting end is externally connected with an air inlet pipe, and the pressure sensor connecting end is used for being plugged with a pressure sensor on the PCBA;
the wire joint is arranged on the lower cover component and comprises a first terminal used for connecting a flat cable inside the respirator and a second terminal protruding out of the wire joint, and the second terminal is used for abutting against a printed copper circuit on the PCBA.
Optionally, the pressure sensor fitting comprises a fitting seat and a line fitting; the pressure sensor is characterized in that a channel penetrating through the joint seat is formed in the joint seat, one end of the pipeline joint is inserted into one end of the channel, the other end of the pipeline joint is externally connected with the air inlet pipe, and the other end of the channel is used for being connected with the pressure sensor in an inserting mode.
Optionally, an accommodating groove is annularly arranged on the inner wall of the channel, a rubber ring is arranged in the accommodating groove, and the inner diameter of the rubber ring is smaller than the caliber of the channel.
Optionally, a sealing ring is further disposed at a connection position of the pipeline joint and the channel.
Optionally, the wire joint comprises an insulating seat, a rotating shaft and a torsion spring; the insulating seat is provided with a mounting groove vertically penetrating through the insulating seat, and the torsion spring is mounted in the mounting groove; the insulating seat is further provided with a through hole which transversely penetrates through the insulating seat, the through hole is communicated with the spring ring of the torsion spring, and the rotating shaft is inserted in the through hole.
Optionally, the torsion spring further includes a first free end protruding from the through hole and abutting against the flat cable inside the respirator.
Optionally, the first free end is bent and turned, and the bending angle is greater than or equal to 90 °.
Optionally, the torsion spring further comprises a second free end, and the second free end has a bent portion protruding from the through hole and abutting against the printed copper circuit on the PCBA.
Optionally, the bending angle of the bent portion is less than 90 °.
The invention also provides a breathing machine which comprises the circuit pipeline connecting structure.
In the technical scheme provided by the invention, the circuit pipeline connecting structure comprises a pressure sensor connector and a wire rod connector, wherein the pressure sensor connector comprises a pipeline connecting end and a pressure sensor connecting end; meanwhile, the wire joint comprises a first terminal used for connecting a flat cable inside the respirator and a second terminal protruding out of the wire joint, and when the PCBA is installed, the second terminal just abuts against a printed copper circuit on the PCBA, so that extra wires are not needed for connecting the PCBA; through the line pipeline connecting structure, excessive pipelines and plug wires can be omitted, so that the installation, the disassembly and the maintenance of the breathing machine are more convenient.
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 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 invention, 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 a schematic diagram of an exploded view of a ventilator of the present invention;
FIG. 2 is a schematic view of a lower cover assembly of the ventilator of the present invention;
FIG. 3 is a schematic view of the connection structure of the circuit pipeline and the PCBA according to the present invention;
FIG. 4 is a schematic structural view of a pressure sensor joint of the line pipe connection structure according to the present invention;
FIG. 5 is a schematic diagram of an exploded view of the pressure sensor joint of FIG. 4;
FIG. 6 is a schematic cross-sectional view of the pressure sensor fitting of FIG. 4;
FIG. 7 is a schematic structural view of a wire joint of the line pipe connection structure according to the present invention;
FIG. 8 is an exploded view of the wire joint of FIG. 7;
fig. 9 is a structural schematic diagram of the torsion spring in fig. 8.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating 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 invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a circuit pipeline connecting structure.
Referring to fig. 1 and 2, in an embodiment of the present invention, the circuit connecting structure is applied to a ventilator 10, the ventilator 10 includes an upper cover assembly 11, a lower cover assembly 12 and a PCBA13, and the circuit connecting structure includes:
the pressure sensor connector 20 is arranged on the lower cover assembly 12, the pressure sensor connector 20 comprises a pipeline connecting end 21 and a pressure sensor connecting end 22, the pipeline connecting end 21 is used for externally connecting an air inlet pipe, and the pressure sensor connecting end 22 is used for plugging a pressure sensor 131 on the PCBA 13;
a wire connector 30 disposed on the lower cover assembly 12, the wire connector 30 including a first terminal 31 for connecting the flat cable 133 inside the ventilator 10 and a second terminal 32 protruding from the wire connector 30, the second terminal 32 for abutting the printed copper circuit 132 on the PCBA 13.
In the technical scheme provided by the invention, the circuit pipeline connecting structure comprises a pressure sensor connector 20 and a wire connector 30, wherein the pressure sensor connector 20 comprises a pipeline connecting end 21 and a pressure sensor connecting end 22, the pressure sensor connector 20 is firstly fixed on the lower cover component 12, the pipeline connecting end 21 can be directly used for being connected with an air inlet pipe outside the respirator 10, and then when the PCBA13 is installed, the pressure sensor 131 on the PCBA13 can be directly inserted into the pressure sensor connecting end 22, so that the external air inlet pipe is communicated with the pressure sensor 131 without being connected with an additional pipeline; while the wire connector 30 includes a first terminal 31 for connecting to the flat cable 133 inside the ventilator 10 and a second terminal 32 projecting from the wire connector 30, the second terminal 32 just abuts the printed copper circuit 132 on the PCBA13 when the PCBA13 is installed, so that no additional wires are required to connect to the PCBA 13; by the circuit pipeline connecting structure, excessive pipelines and plug wires can be omitted, so that the installation, the disassembly and the maintenance of the breathing machine 10 are more convenient.
Specifically, the pressure sensor connector 20 includes a connector base 201 and a line connector 205; a channel 202 penetrating through the joint seat 201 is formed in the joint seat 201, one end of the pipeline joint 205 is inserted into one end of the channel 202, the other end of the pipeline joint 205 is externally connected with the air inlet pipe, and the other end of the channel 202 is connected with the pressure sensor 131 in an inserting mode. In this embodiment, the connector base 201 is provided with four channels 202, and one end of each channel 202 is inserted with a pipeline connector 205 to connect different air inlet pipes; the other end of each of the channels 202 is then plugged with a pressure sensor 131. The pressure sensor joint 20 can facilitate the connection between the air inlet pipe and the pressure sensor 131, and saves redundant pipelines inside.
Furthermore, an accommodating groove 203 is annularly arranged on the inner wall of the channel 202, a rubber ring 204 is arranged in the accommodating groove 203, and the inner diameter of the rubber ring 204 is smaller than the caliber of the channel 202. Because the inner diameter of the rubber ring 204 is smaller than the caliber of the channel 202, when the temperature sensor is inserted into the channel 202, the rubber ring 204 deforms and fastens the temperature sensor, thereby achieving the sealing effect.
Further, a sealing ring 206 is further disposed at a connection position of the pipeline joint 205 and the channel 202. The sealing ring 206 is used to seal the connection between the line connection 205 and the channel 202.
Specifically, the wire joint 30 includes an insulating base 301, a rotating shaft 304, and a torsion spring 305; an installation groove 302 vertically penetrating through the insulation seat 301 is formed in the insulation seat 301, and the torsion spring 305 is installed in the installation groove 302; the insulating base 301 is further provided with a through hole 303 transversely penetrating through the insulating base 301, the through hole 303 is communicated with a spring ring 306 of the torsion spring 305, and the rotating shaft 304 is inserted into the through hole 303. In this embodiment, the number of the torsion springs 305 is multiple, the torsion springs 305 are arranged in two rows in parallel, two rows of mounting grooves 302 vertically penetrating through the insulating base 301 are formed in the corresponding insulating base 301, two through holes 303 transversely penetrating through the insulating base 301 are further formed in the insulating base 301, and the rotating shaft 304 passes through the through holes 303 and the spring ring 306 of the torsion springs 305 and is used for fastening the torsion springs 305.
Further, the torsion spring 305 includes a first free end 307 and a second free end 308, the first free end 307 protrudes out of the through hole 303 and abuts against the flat cable 133 inside the respirator 10; the second free end 308 has a bent portion 309, and the bent portion 309 protrudes from the through hole 303 and abuts against the printed copper circuit 132 on the PCBA 13.
The wire joint 30 is fixedly disposed on the lower cover assembly 12 of the ventilator 10, and the first free end 307 of the torsion spring 305 first abuts against the flat cable 133 inside the ventilator 10. When the PCBA13 is not yet assembled, the torsion springs 305 of the wire connector 30 are in an ejected condition, and the bend 309 of the second free end 308 projects beyond the wire connector 30, the bend 309 abutting the printed copper circuit 132 of the PCBA13 when assembled into the PCBA 13. Excessive wires can be omitted by using the wire joint 30, and meanwhile, the wire joint 30 and the PCBA13 are more convenient to connect compared with wires, and installation, disassembly and maintenance are facilitated.
Further, in a preferred embodiment, the first free end 307 is bent and rotated, and the bending angle is greater than or equal to 90 °; the bent portion 309 of the second free end 308 has a bent angle of less than 90 °.
In this embodiment, the location where the pressure sensor fitting 20 and the wire fitting 30 are mounted on the lower cover assembly 12 corresponds to the pressure sensor 131 and the printed copper circuit 132 on the PCBA 13. In actual production, the pressure sensor connector 20, the wire connector 30 and the fixing piece of the PCBA13 are made into corresponding standard plastic parts, so that the PCBA13 is convenient to mount and dismount, and accumulated errors caused by part switching are reduced.
The present invention further provides a ventilator 10, where the ventilator 10 includes the circuit pipeline connection structure in any of the above embodiments, and the specific structure of the circuit pipeline connection structure may refer to the above embodiments, and since the ventilator 10 adopts all technical solutions of all the above embodiments, at least all beneficial effects brought by the technical solutions of the above embodiments are achieved, and details are not repeated herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.