CN214849239U - Sensor sealing connector - Google Patents
Sensor sealing connector Download PDFInfo
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- CN214849239U CN214849239U CN202121330406.8U CN202121330406U CN214849239U CN 214849239 U CN214849239 U CN 214849239U CN 202121330406 U CN202121330406 U CN 202121330406U CN 214849239 U CN214849239 U CN 214849239U
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- sensor
- ferrule
- insulating sleeve
- connector
- boss
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Abstract
The utility model belongs to the field of sensor structure design, specifically discloses a sensor sealing connector, which comprises a sensor shell, a lock pin and an insulating sleeve, wherein the insulating sleeve and the lock pin are arranged in an inner hole arranged at the front end of the sensor shell; an elastic column clamped with the inserting core is arranged on the periphery of the front end of the sensor shell; one end of the ferrule is provided with a closed end, a central hole is formed in the ferrule, the front end of the central hole does not protrude out of the closed end, the rear end of the central hole is provided with an open slot, the open slot is arranged at the other end of the ferrule, and the outer surface of the ferrule is provided with a spiral groove for mounting a signal line; a plurality of clamping blocks are uniformly distributed on the periphery close to the other end of the inserting core; the utility model discloses a connector, sensor are reliably connected, and sealing performance is good, and assembly process is simple, has guaranteed single line output sensor signal undistorted transmission in the at utmost.
Description
Technical Field
The application belongs to the field of sensor structural part design, and can be applied to electrical signal transmission of various sensors such as piezoelectric type, strain type and piezoresistive type.
Background
The sensor has strict sealing requirements, and is used as a connecting piece for an internal signal line and an external signal line of the sensor, the structural sealing performance design of the sensor connector is critical, the sensor connector belongs to a connector between the sensor and an output cable, the connector is divided into a female connector and a male connector, two male connectors are generally respectively installed at the front end and the rear end of the cable during practical application, the front male connector is connected with the female connector installed on the sensor, the rear male connector is connected with the female connector installed on an instrument, and therefore the electrical signal transmission of the sensor is realized through the two connectors. At present, a plurality of connectors meeting single-wire transmission in the market are provided, and in order to reduce the manufacturing cost of a test system and optimize resources, a commercial connector male head is selected to manufacture a sensor matching cable, and a matching female head is installed on a sensor. Currently, only two types of female connectors of the commercially available single-wire transmission connector are available: a suitable for installing on the instrument casing, adopt the gasket to clamp and connect to the instrument casing, weld the signal line on the end of inserting core while using, the common terminal is longer, unsuitable to install on the sensor with smaller appearance size; the other type can be directly connected with a coaxial cable, the female head is designed with a cable clamping structure, the whole size is large, the female head cannot be reliably connected with a machined part, and the female head is not suitable for connecting a signal output end of a sensor. In addition, the conventional connector female plug core in the market is usually a through hole, and cannot realize sealing;
the sensor sealing connector can be reliably connected with a commercial single-wire transmission connector male connector and a sensor, has good sealing performance and simple assembly process, ensures the undistorted transmission of a signal of a single-wire output sensor to the greatest extent, and has the characteristics of small volume, reliable performance and long service life.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome current sensor sealing connector, sealing performance is not good, and the defect that assembly process is complicated provides a sensor sealing connector.
The utility model provides a sensor sealing connector, which comprises a sensor shell, a lock pin and an insulating sleeve, wherein the insulating sleeve and the lock pin are arranged in an inner hole arranged at the front end of the sensor shell;
an elastic column clamped with the inserting core is arranged on the periphery of the front end of the sensor shell;
one end of the ferrule is provided with a closed end, a central hole is formed in the ferrule, the front end of the central hole does not protrude out of the closed end, the rear end of the central hole is provided with an open slot, the open slot is arranged at the other end of the ferrule, and the outer surface of the ferrule is provided with a spiral groove for mounting a signal line; and a plurality of clamping blocks are uniformly distributed on the periphery close to the other end of the inserting core.
Furthermore, the rear end of the sensor shell is provided with a characteristic structure fixedly connected with a sensor, the front end of the sensor shell is provided with a characteristic structure connected with a male head of a sensor cable connector, the front end of the outer surface of the sensor shell is sequentially provided with a chamfer, a first boss and a second boss, and the cross sections of the first boss and the second boss are circular or polygonal; a groove is arranged between the first boss and the second boss, and a plurality of holes for mounting the elastic columns are uniformly distributed on the periphery of the groove;
the inner diameter of the front end of the inner hole is slightly larger than the outer diameter of the insulating sleeve, the rear end of the inner hole is characterized by a taper hole, and the inner diameter is smaller than the outer diameter of the insulating sleeve.
Furthermore, the fixture block is connected with the insertion core through a spring arranged on the fixture block.
Further, the ferrule is made of copper.
Further, the insulating sleeve is a cylindrical insulating sleeve made of an insulating material.
Furthermore, the rear end of the inner hole is provided with a 0.2-1mm taper hole, and the chamfer angle 18 is 1-2 mm.
Further, the second boss external thread is M5.
Compared with the prior art, the beneficial effects of the utility model reside in that:
(1) the utility model discloses in insulating cover and lock pin insert the hole that the sensor casing was equipped with, lock pin and insulating cover inner surface interference fit, be equipped with the signal line between lock pin and the insulating cover, draw the signal and fix the signal line, sealed sensor simultaneously; an elastic column clamped with the inserting core is arranged on the periphery of the front end close to the sensor shell; one end of the inserting core is provided with a closed end, and the closed end is provided with a frustum; the other end of the inserting core is provided with a central hole and an open slot, and the outer surface of the inserting core is provided with a spiral groove for mounting a signal wire; the side of the periphery close to the other end of the inserting core is uniformly connected with a plurality of clamping blocks, so that the sealing performance of the connector is ensured, and the sensor is reliably connected.
(2) The utility model discloses with the signal line winding at the assembly part hole that inserts sensor housing and insulating cover on the lock pin, draw signal and fixed signal line, signal transmission effect is good, and the lock pin passes through elasticity post joint fixed connection with sensor housing, and this assembly process is simple sealing performance good.
Drawings
The following drawings are merely illustrative of and explanatory of the invention and are not intended to limit the scope of the invention, wherein:
FIG. 1: the working state diagram of the connector of the utility model on the piezoelectric acceleration sensor is shown;
reference numerals: 1-a sensor shell, 2-a ferrule, 3-a signal wire, 4-an elastic column, 5-an insulating sleeve, 16-a first boss, 17-a second boss, 18-a chamfer, 19-an inner hole and 20-a groove;
FIG. 2: is a schematic diagram of the ferrule;
reference numerals: 11-a clamping block, 12-a spiral groove, 13-a central hole, 14-a closed end and 15-an open slot;
FIG. 3: the installation schematic diagram of the connector is shown;
reference numerals: 1-sensor shell, 2-inserting core, 3-signal wire;
Detailed Description
In order to make the objects, technical solutions, design methods, and advantages of the present invention more clear, the present invention will be further described in detail by the following embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
3. As shown in fig. 1, the utility model provides a sensor sealing connector, which comprises a sensor housing 1, a ferrule 2 and an insulating sleeve 5, wherein the insulating sleeve 5 and the ferrule 2 are installed in an inner hole 19 arranged at the front end of the sensor housing 1, the ferrule 2 is in interference fit with the inner surface of the insulating sleeve 5, and a signal wire 3 is arranged between the ferrule 2 and the insulating sleeve 5;
the periphery of the front end of the sensor shell 1 is provided with an elastic column 4 clamped with the inserting core 2;
one end of the ferrule 2 is provided with a closed end 14, a central hole 13 is formed in the ferrule, the front end of the central hole 13 does not protrude out of the closed end 14, the rear end of the central hole 13 is provided with an open slot 15, the open slot 15 is arranged at the other end of the ferrule 2, and the outer surface of the ferrule 2 is provided with a spiral slot 12 for mounting a signal wire 3; a plurality of clamping blocks 11 are uniformly distributed on the periphery close to the other end of the inserting core 2; the sealing performance of the connector is ensured, and the sensor is reliably connected.
Further, the rear end of the sensor shell 1 is provided with a characteristic structure fixedly connected with a sensor, the front end of the sensor shell 1 is provided with a characteristic structure connected with a male head of a sensor cable connector, the front end of the outer surface of the sensor shell 1 is sequentially provided with a chamfer 18, a first boss 16 and a second boss 17, and the sections of the first boss 16 and the second boss 17 are circular or polygonal; a groove 20 is arranged between the first boss 16 and the second boss 17;
the inner diameter of the front end of the inner hole 19 is slightly larger than the outer diameter of the insulating sleeve 5, the rear end of the inner hole 19 is characterized by a taper hole, and the inner diameter is smaller than the outer diameter of the insulating sleeve 5; the design of the sensor housing facilitates sensor assembly.
Further, the fixture block 11 is connected with the ferrule 2 through a spring arranged on the fixture block 11; the convenient to detach installation guarantees connector sealing performance simultaneously.
Furthermore, the inserting core 2 is made of copper, and has good conductive performance.
Further, the insulating sleeve 5 is a cylindrical insulating sleeve made of an insulating material, so that the ferrule is insulated from the threaded connector, and the function of isolating output signals is achieved.
Furthermore, the rear end of the inner hole 19 is provided with a 0.2-1mm taper hole, the chamfer 18 is 1-2mm, and the two parts are designed to adopt a shaft-taper hole interference fit and a process chamfer elastic-plastic deformation process method to fix the insulating sleeve.
Further, the external thread of the second boss 17 is M5, which determines the male connection thread of the connector on the signal transmission cable for the sensor.
The working process is as follows: the utility model discloses the application on piezoelectric acceleration sensor is shown as attached figure 1. The connector is fixedly connected to the sensor and then connected with the male connector on the signal transmission cable, so that the signal transmission function of the connector is realized. The sensor housing 1 is determined by a male connector connecting thread on a signal transmission cable matched with the sensor, and the application of the sensor housing on a piezoelectric acceleration sensor is taken as an example: in a general piezoelectric sensor, a cable with a L5 (the connecting thread is M5 internal thread) male head is used, and the front end of the sensor shell 1 is provided with a first boss 16 which is processed into M5 external thread. When the connector is connected with the sensor, pretightening force needs to be applied, so that a second boss 17 is arranged on the outer side of the connector, and the cross section of the second boss 17 is circular or polygonal.
The rear end of the inner hole 19 of the connector is provided with a 0.2-1mm taper hole, the characteristic top end of the front end of the outer surface of the inner hole is provided with a 1-2mm chamfer 18, and the two parts are designed to adopt shaft-taper hole interference fit and process chamfer to fix the insulating sleeve, so that the insulating sleeve 5 can not be separated when the connector is repeatedly used; the outer surface of the insulating sleeve 5 is in interference fit with the conical surface of the inner hole 19 of the connector and is in transition fit with the non-conical surface characteristic;
the structure of the insertion core 2 is as shown in figure 2, the rear end is closed, and the sealing performance of the connector is ensured; the front end is drilled with a central hole 12, and the opening end is provided with an open slot 13 to ensure that the central hole 12 is reliably connected with a cable connector pin. The closed end 14 is provided with a frustum for convenient installation, the outer surface of the ferrule 2 is provided with a spiral groove 12 for convenient installation and fixation of the signal wire 3 and leading out of the signal wire 3 when in use, and the ferrule 2 is prevented from being separated when in use, the diameter of the outer surface of the ferrule 2 is smaller than the diameter of an inner hole of the insulating sleeve 2 and forms shaft-hole interference fit with the insulating sleeve 2; the inner diameter of a front end center hole 12 is slightly larger than the outer diameter of a male connector pin on a cable selected by the sensor, and the front end center hole is in transition fit with the outer surface of the male connector pin; be close to 2 rear end week sides equipartitions of lock pin and be equipped with a plurality of fixture blocks 11, the spring coupling that is equipped with on fixture block 11 with lock pin 2, lock pin 2 and sensor housing 1 pass through 4 joint sealing connection of elasticity posts, guarantee connector sealing performance.
The utility model discloses when using on piezoelectric acceleration sensor, the assembly method is as shown in figure 3: the signal wire 3 is wound on the insertion core 2 and inserted into the assembly part inner hole 19 of the sensor shell 1 and the insulation sleeve, a signal is led out, the signal wire 3 is fixed, the insertion core 2 and the sensor shell 1 are clamped, fixed and hermetically connected through the elastic column 4, and the sensor connector in a working state is connected with a cable with a connector male head in a matching mode as shown in figure 1, so that the reliable transmission of the sensor signal is achieved. Accomplish the connector assembly back, the sensor inner chamber is sealed, realizes sealedly, the utility model discloses satisfy the anti-interference and sealing performance requirement of sensor of national standard regulation.
While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (7)
1. The sensor sealing connector is characterized by comprising a sensor shell (1), an insertion core (2) and an insulating sleeve (5), wherein the insulating sleeve (5) and the insertion core (2) are installed in an inner hole (19) formed in the front end of the sensor shell (1), the insertion core (2) is in interference fit with the inner surface of the insulating sleeve (5), and a signal wire (3) is arranged between the insertion core (2) and the insulating sleeve (5);
an elastic column (4) clamped with the inserting core (2) is arranged on the periphery of the front end of the sensor shell (1);
one end of the ferrule (2) is provided with a closed end (14), a central hole (13) is formed in the ferrule, the front end of the central hole (13) does not protrude out of the closed end (14), the rear end of the central hole (13) is provided with an open slot (15), the open slot (15) is arranged at the other end of the ferrule (2), and the outer surface of the ferrule (2) is provided with a spiral groove (12) for installing a signal wire (3); a plurality of clamping blocks (11) are uniformly distributed on the periphery close to the other end of the inserting core (2).
2. The sealed sensor connector according to claim 1, wherein the sensor housing (1) has a feature structure at the rear end for fixedly connecting the sensor, and a feature structure at the front end for connecting the male connector of the sensor cable connector, the front end of the outer surface of the sensor housing (1) is provided with a chamfer (18), a first boss (16) and a second boss (17) in sequence, and the first boss (16) and the second boss (17) have circular or polygonal cross sections; a groove (20) is arranged between the first boss (16) and the second boss (17), and a plurality of holes for mounting the elastic columns (4) are uniformly distributed on the periphery of the groove (20);
the inner diameter of the front end of the inner hole (19) is slightly larger than the outer diameter of the insulating sleeve (5), the rear end of the inner hole (19) is characterized by a taper hole, and the inner diameter is smaller than the outer diameter of the insulating sleeve (5).
3. The sealed sensor connector according to claim 1, wherein the latch (11) is connected to the ferrule (2) by a spring provided on the latch (11).
4. A sensor seal connection according to claim 1, characterized in that the ferrule (2) is made of copper.
5. A sealed sensor connector according to claim 1, characterised in that the insulating sleeve (5) is a cylindrical insulating sleeve made of insulating material.
6. A sealed sensor connector according to claim 2, characterized in that the rear end of the inner hole (19) has a 0.2-1mm taper hole, and the chamfer (18) is 1-2 mm.
7. A sensor sealing joint according to claim 2, wherein the external thread of the second boss (17) is M5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121330406.8U CN214849239U (en) | 2021-06-16 | 2021-06-16 | Sensor sealing connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121330406.8U CN214849239U (en) | 2021-06-16 | 2021-06-16 | Sensor sealing connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214849239U true CN214849239U (en) | 2021-11-23 |
Family
ID=78807128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121330406.8U Active CN214849239U (en) | 2021-06-16 | 2021-06-16 | Sensor sealing connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214849239U (en) |
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2021
- 2021-06-16 CN CN202121330406.8U patent/CN214849239U/en active Active
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