CN210070972U - Sensor with high-resistance connecting structure - Google Patents
Sensor with high-resistance connecting structure Download PDFInfo
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- CN210070972U CN210070972U CN201921265225.4U CN201921265225U CN210070972U CN 210070972 U CN210070972 U CN 210070972U CN 201921265225 U CN201921265225 U CN 201921265225U CN 210070972 U CN210070972 U CN 210070972U
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- butt joint
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Abstract
The utility model discloses a sensor with high resistant connection structure is provided with chemical perception part and the electronic processing part for dismantling the connection. The connection mode of the lead and the contact pin in the structure abandons the inherent welding mode, and utilizes a mechanical structure to carry out press mounting and fixing by changing the threading mode. And through injecting into epoxy in sealed chamber and crimping inslot, the colloid solidification back has not only increased the joint strength of lead wire with the contact pin, can also carry out effectual sealing, avoids epoxy to get into, guarantees the impedance of junction.
Description
Technical Field
The utility model relates to a sensor technical field especially relates to a sensor with high resistant connection structure.
Background
In the current sensor, the connection technology of lead and wire is the welding, and the back lead wire of welding and wire bonding pad need carry out insulation and keep apart, prevent with other lead short circuits, can have the technology complicacy, and drawback such as short circuit, disconnected joint easily appear, and the wiring harness encapsulation needs curl in inside to the storehouse body after the welding is accomplished moreover, can have defects such as insulating isolation sleeve obscission in the assembly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a sensor with high resistant connection structure who avoids adopting welding process to fix lead wire and contact pin is provided, guarantees to have sufficient impedance value between lead wire and the contact pin.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is:
a sensor with a high-resistance connecting structure comprises a sensing mechanism and an electronic processing mechanism, and is characterized in that:
the sensing mechanism comprises a sensor body, wherein a partition plate made of a high-resistance material is fixed at the tail end of an inner cavity of the sensor body, an outward-protruding connecting column is arranged on the outer side of the partition plate, a through hole and a compression joint groove which are both axial are formed in the connecting column, the through hole is communicated with the compression joint groove, the middle of the through hole is contracted, a sealing cavity is formed at the outer end of the through hole, and a lead of the sensor body penetrates through the through hole and is folded into the compression joint groove; the tail end of the sensor body is provided with a butt joint connector in a pressing mode, a contact male needle is axially fixed on the butt joint connector, one end of the contact male needle is inserted into the pressing groove and extrudes the lead to fix the lead, the end face of the inner side of the butt joint connector is provided with a sleeved protection sleeved on the connecting column to plug the outer end face of the connecting column so as to inject sealant into the sealing cavity and the pressing groove, a female joint is arranged on the outer side of the butt joint connector, and the other end of the contact male needle is located in a groove body of the female joint connector;
the electronic processing mechanism comprises a measuring instrument body, wherein a butt joint cap which is fixedly butted with the butt joint head is fixed at one end of the measuring instrument body, a male joint which is butted with the female joint head is arranged in the butt joint cap, the contact male needle is butted with the contact female needle in the male joint head after being inserted into the male joint head, and the contact female needle is connected with a circuit board of the measuring instrument body.
The further technical scheme is as follows: the outer wall of the contact male needle and/or the contact female needle is provided with tapered teeth at equal intervals with a part fixed with the butt joint head or the butt cap.
The further technical scheme is as follows: the outer wall of the butt joint is provided with threads, and the butt cap is in threaded connection with the butt joint.
The further technical scheme is as follows: the outer wall of the butt joint is embedded with a first sealing ring which is in butt joint with the butt joint cap and is sealed between the side walls of the butt joint cap and the butt joint cap.
The further technical scheme is as follows: and a second sealing ring which is in butt joint with the butt joint and seals between the end surfaces of the butt joint cap and the butt joint is arranged at the bottom of the butt joint cap.
The further technical scheme is as follows: the end face of the connecting column between the through hole and the crimping groove is provided with a concave groove for accommodating a lead.
The further technical scheme is as follows: the separator is made of PP or PE.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
in this sensor, because the sensor body is the consumable article, consequently set up this product into two parts of dismantling the connection, one end is the chemical perception part, and partly is the electron processing part, combines sensor body and instrument as an organic whole, but the digital signal of direct output teletransmission, it is more convenient to use to can change the sensor body.
Regarding the connection mode of the lead and the contact pin, the inherent welding mode is abandoned, the threading mode is changed, and the press mounting and the fixation are carried out by utilizing a mechanical structure. The back is passed from the perforation to the lead wire, turns over the book by the crimping groove backward again, recycles the contact pin at last and inserts the crimping inslot rather than the contact and compress tightly the lead wire, and in this structure, the lead wire turns over a back, makes the inserting direction of contact pin the same with the lead wire direction, and the insertion of the contact pin of being convenient for turns over the lead wire after rolling over moreover and has a steering, can avoid falling behind the lead wire atress, and is fixed more stable.
In addition, be equipped with the bell and spigot joint formula protection outside the spliced pole, guarantee that the hookup location of lead wire and contact pin separates with the external world to carry out the shutoff to the outer end in sealed chamber and crimping groove, make sealed chamber and crimping inslot can pour into epoxy, after the colloid solidification, not only increased the joint strength of lead wire and contact pin, can also carry out effectual sealing, avoid epoxy to get into, guarantee the impedance of junction.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention (before the sensing mechanism and the electronic processing mechanism are butted);
fig. 2 is an enlarged schematic view of a portion a of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention are 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 some, not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1 and 2, a sensor having a high resistance connection structure includes a sensing mechanism 101 and an electronic processing mechanism 102. In this sensor, because the sensor body is the consumable article, consequently set up this product into two parts of dismantling the connection, one end is the chemical perception part, and partly is the electron processing part, combines sensor body and instrument as an organic whole, but the digital signal of direct output teletransmission, it is more convenient to use to can change the sensor body.
Specifically, the sensing mechanism 101 comprises a sensor body, a partition plate 11 made of a high-resistance material is fixed at the tail end of an inner cavity of the sensor body, a convex connecting column 12 is arranged on the outer side of the partition plate 11, a through hole 13 and a pressure connecting groove 14 which are both axial are formed in the connecting column 12, the through hole 13 is communicated with the pressure connecting groove 14, the middle of the through hole 13 contracts, a sealed cavity is formed at the outer end of the through hole 13, and a lead 15 of the sensor body penetrates through the through hole 13 and is turned over into the pressure connecting groove 14; the terminal pressure equipment of sensor body has butt joint 16, the last axial of butt joint 16 is fixed with contact male needle 17, the one end of contact male needle 17 is inserted in crimping groove 14 and is extruded lead wire 15, realizes the fixed of lead wire 15, have the bell and spigot joint formula protection 18 of cup jointing on spliced pole 12 on butt joint 16's the medial surface, realize the shutoff to spliced pole 12 outer terminal surface to inject sealed glue into in sealed chamber and crimping groove 14, butt joint 16's the outside has female joint 19, the other end of contact male needle 17 is located female joint 19's cell body. The partition plate 11 and the connecting column 12 are integrally formed by injection molding, and the butt joint 16, the sleeved protection 18 and the female joint 19 are integrally formed by injection molding.
The electronic processing mechanism 102 comprises a measuring instrument body, a butt joint cap 21 which is fixedly butted with the butt joint head 16 is fixed at one end of the measuring instrument body, a male joint head 22 which is butted with the female joint head 19 is arranged in the butt joint cap 21, the contact male pin 17 is butted with a contact female pin 23 in the male joint head 22 after being inserted into the male joint head 22, and the contact female pin 23 is connected with a circuit board of the measuring instrument body.
In this structure, the sensing mechanism 101 and the electronic processing mechanism 102 are respectively provided with a complementary type guiding structure, so that the corresponding relationship of the pins can be ensured. Regarding the connection mode of the lead 15 and the contact pin, the inherent welding mode is abandoned, but the threading mode is changed, and the press mounting and fixing are carried out by using a mechanical structure. Lead 15 from perforation 13 after passing, turn over backward by crimping groove 14 again, reuse contact pin insert in crimping groove 14 at last rather than contact and compress tightly lead 15, in this structure, lead 15 turns over the back, makes the inserting direction of contact pin the same with lead 15 direction, the insertion of the contact pin of being convenient for, and lead 15 after turning over has the turn to moreover, can avoid drop after lead 15 atress, and is fixed more stably.
In addition, be equipped with the bell and spigot joint formula protection 18 outside spliced pole 12, guarantee that the hookup location of lead wire 15 and contact pin separates with the external world to carry out the shutoff to the outer end in sealed chamber and crimping groove 14, make and can pour into epoxy in sealed chamber and the crimping groove 14, the colloid solidification back has not only increased the joint strength of lead wire 15 with the contact pin, can also carry out effectual sealing, avoids epoxy to get into, guarantees the impedance of junction.
Regarding the fixing mode of the contact pin and the corresponding part, the part fixed with the butt joint head 16 or the butt joint cap 21 on the outer wall of the contact male pin 17 and/or the contact female pin 23 is provided with tapered teeth at equal intervals, when the contact male pin and/or the contact female pin are installed, the small end of each tapered tooth firstly enters the installation hole, and the large end of each tapered tooth is extruded along with the penetration of the contact pin, so that the fixed connection between the contact male pin and the corresponding part is realized.
The detachable connection mode of the sensing mechanism 101 and the electronic processing mechanism 102 can adopt a snap connection, or a thread is arranged on the outer wall of the butt joint 16, the butt joint cap 21 is in threaded connection with the butt joint 16, and the thread indirect mode is firmer.
In addition, the existing sensor is integrated with the lead 15, and after the sensor reaches the service life, the lead 15 is also discarded together with the sensor, so that a lot of resource is wasted. Even if some manufacturers butt joint the lead 15, the sealing effect is poor, and corrosive gas easily enters the connector under the influence of the use environment, so that the contact of the contact pin is poor.
In order to ensure that the contact pin is in a sealed environment after being butted, a first sealing ring 10 which is butted with the butting cap 21 and sealed between the two side walls is embedded on the outer wall of the butting joint 16. Further, the bottom of the butt cap 21 has a second seal ring 24 for sealing between the end faces of the butt joint 16 after butt joint. To ensure that the sensor can be used properly in liquid or volatile gas rings.
In order to avoid the extrusion forming dead angle of the lead 15 after the socket joint type protection 18 is in butt joint with the connecting column 12, the end face of the connecting column 12 between the through hole 13 and the crimping groove 14 is provided with a concave groove for accommodating the lead 15, so that the extrusion of the lead 15 is avoided, and in addition, the through hole 13 and the crimping groove 14 can be communicated through the groove, so that glue is injected into the through glue injection hole and the connecting column.
Most of signals transmitted by the existing sensor are mV signals, because the signals are weaker, a material with higher impedance is used as a wrapping layer of a lead 15, polytetrafluoroethylene is used as a contact end at a joint, and because the polytetrafluoroethylene material is not subjected to injection molding and can only depend on machining, a large amount of resources are wasted; meanwhile, the contact position needs to be wrapped by a high-resistance sleeve, coated with silica gel and the like, and the process is particularly complex. Therefore, in the structure, the polytetrafluoroethylene connector is omitted, the partition plate 11 is made of PP or PE, injection molding can be realized, the processing technology is simple, and the using effect can be met.
The above is only the preferred embodiment of the present invention, and any person can make some simple modifications, deformations and equivalent replacements according to the present invention, all fall into the protection scope of the present invention.
Claims (7)
1. A sensor with a high-resistance connection structure, comprising a sensing mechanism (101) and an electronic processing mechanism (102), characterized in that:
the sensing mechanism (101) comprises a sensor body, a partition plate (11) made of a high-resistance material is fixed at the tail end of an inner cavity of the sensor body, a convex connecting column (12) is arranged on the outer side of the partition plate (11), a through hole (13) and a crimping groove (14) which are both axial are formed in the connecting column (12), the through hole (13) is communicated with the crimping groove (14), the middle of the through hole (13) contracts, a sealing cavity is formed at the outer end of the through hole (13), and a lead (15) of the sensor body penetrates through the through hole (13) and is turned over into the crimping groove (14); the sensor comprises a sensor body and is characterized in that a butt joint (16) is arranged at the tail end of the sensor body in a pressing mode, a contact male needle (17) is axially fixed on the butt joint (16), one end of the contact male needle (17) is inserted into a press joint groove (14) and extrudes a lead (15), so that the lead (15) is fixed, a sleeved protection (18) sleeved on a connecting column (12) is arranged on the end face of the inner side of the butt joint (16), the outer end face of the connecting column (12) is plugged, so that sealant is injected into a sealing cavity and the press joint groove (14), a female joint (19) is arranged on the outer side of the butt joint (16), and the other end of the contact male needle (17) is located in a groove body of the female joint (19);
electronic processing mechanism (102), including the measuring instrument body, be fixed with in the one end of measuring instrument body with butt joint cap (21) of butt joint (16) butt joint fixed, have in butt joint cap (21) with male joint (22) of female joint (19) butt joint, contact male needle (17) insert in male joint (22) back and the female needle (23) butt joint of contact in male joint (22), contact female needle (23) are connected with the circuit board of measuring instrument body.
2. A sensor having a high resistance connection structure according to claim 1, wherein: the outer wall of the contact male needle (17) and/or the contact female needle (23) is provided with conical teeth at equal intervals with a part fixed with the butt joint head (16) or the butt cap (21).
3. A sensor having a high resistance connection structure according to claim 1, wherein: the outer wall of the butt joint (16) is provided with threads, and the butt cap (21) is in threaded connection with the butt joint (16).
4. A sensor having a high resistance connection structure according to claim 1, wherein: the outer wall of the butt joint (16) is embedded with a first sealing ring (10) which is in butt joint with the butt joint cap (21) and then seals between the side walls of the butt joint cap and the butt joint cap.
5. The sensor having a high-resistance connection structure according to claim 1 or 4, wherein: and a second sealing ring (24) which is butted with the butt joint head (16) and seals between the end surfaces of the butt joint head and the butt joint head (21) is arranged at the bottom of the butt joint head.
6. A sensor having a high resistance connection structure according to claim 1, wherein: the end face of the connecting column (12) between the through hole (13) and the crimping groove (14) is provided with a concave groove for accommodating a lead (15).
7. A sensor having a high resistance connection structure according to claim 1, wherein: the separator (11) is made of PP or PE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921265225.4U CN210070972U (en) | 2019-08-05 | 2019-08-05 | Sensor with high-resistance connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921265225.4U CN210070972U (en) | 2019-08-05 | 2019-08-05 | Sensor with high-resistance connecting structure |
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| Publication Number | Publication Date |
|---|---|
| CN210070972U true CN210070972U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921265225.4U Active CN210070972U (en) | 2019-08-05 | 2019-08-05 | Sensor with high-resistance connecting structure |
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| CN (1) | CN210070972U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319857A (en) * | 2019-08-05 | 2019-10-11 | 北京恒泰翔基科技有限公司 | A kind of sensor with high resistant connection structure |
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2019
- 2019-08-05 CN CN201921265225.4U patent/CN210070972U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319857A (en) * | 2019-08-05 | 2019-10-11 | 北京恒泰翔基科技有限公司 | A kind of sensor with high resistant connection structure |
| CN110319857B (en) * | 2019-08-05 | 2024-05-14 | 北京恒泰翔基科技有限公司 | Sensor with high-resistance connection structure |
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