CN210922854U - Novel cylinder temperature sensor sealing protection structure with high stability - Google Patents
Novel cylinder temperature sensor sealing protection structure with high stability Download PDFInfo
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- CN210922854U CN210922854U CN201921531180.0U CN201921531180U CN210922854U CN 210922854 U CN210922854 U CN 210922854U CN 201921531180 U CN201921531180 U CN 201921531180U CN 210922854 U CN210922854 U CN 210922854U
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- temperature sensor
- cylinder temperature
- protection structure
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Abstract
The utility model belongs to the technical field of vehicle engine structure, especially, relate to a novel cylinder temperature sensor seal protection architecture of high stability. The utility model discloses a set up thermistor, wire, the mode of cover body unit and cap body unit in the sensor housing body, reach the high effect of jar temperature sensor structural stability. The utility model has the advantages of jar temperature sensor seals protection structural stability is high, and the difficult separation of sensor shell body, thermistor and wire three, rubber material's cover body unit shock attenuation protection is effectual to and jar temperature sensor long service life.
Description
Technical Field
The utility model belongs to the technical field of vehicle engine structure, especially, relate to a novel cylinder temperature sensor seal protection architecture of high stability.
Background
The cylinder temperature sensor is a sensor for detecting the temperature of the cylinder head of the engine of the automobile or the motorcycle and is used for feeding the temperature of the engine back to a traveling computer. The existing cylinder temperature sensor structure generally comprises an outer shell, a thermistor, a wire and pouring sealant, wherein the pouring sealant is used for bonding and fixing the wire at the opening of the outer shell, so as to integrate all sensor parts, but the pouring sealant type sealing protection structure cannot be combined for a long time because the wire is different from the glue material, the glue is solidified after a period of time, the wire is separated from the wire, a gap is generated, finally, the welding position between the wire and the thermistor is exposed under a high-temperature environment, and mechanical pulling is generated, so that the thermistor is separated from a traveling crane computer, the cylinder temperature sensor fails, at the moment, an ECU (electronic control unit) can only shut down an engine, and great troubles are brought to subsequent maintenance and investigation work.
Therefore, to the above problems, a novel sealing protection structure for a cylinder temperature sensor is urgently needed in the market, so as to ensure that the outer shell, the lead and the thermistor can be firmly combined for a long time, and the thermistor is stably fixed in the outer shell to perform long-term effective temperature detection.
The patent publication number is CN 202372275U, and the china utility model patent that the announcement day is 2012.08.08 discloses an all-plastic jar temperature sensor, comprises thermistor, body and inserted sheet, and the body is equipped with the piece groove that suits with the thermistor size, and thermistor sets up in the piece groove of body, and the upper portion of body is equipped with the trompil, and left and right inserted sheet parallel arrangement is in the trompil of body, and left and right inserted sheet is connected with two pins of thermistor respectively.
But the cylinder temperature sensor in this utility model patent has two inserted sheets and drops easily, and final thermistor loses the problem that the wire is connected easily.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel sealed protection architecture of jar temperature sensor of high stability, it can reach the high effect of jar temperature sensor structural stability through the mode that sets up thermistor, wire, cover body unit and cap body unit in the sensor housing body. The utility model has the advantages of jar temperature sensor seals protection structural stability is high, and the difficult separation of sensor shell body, thermistor and wire three, rubber material's cover body unit shock attenuation protection is effectual to and jar temperature sensor long service life.
The utility model provides a technical scheme that above-mentioned problem adopted is: the utility model provides a novel sealed protection architecture of jar temperature sensor of high stability, includes the sensor housing body, sets up thermistor in the sensor housing body, and set up thermistor is last and outwards stretch out two wires in order to be used for connecting the driving computer, still including cup jointing the setting two on the wire and laminating setting are in cover body unit on the ring surface in the sensor housing body to and the block setting is in be used for following the spacing fixing in the outside on the sensor housing body lateral surface cover body unit's the cap body unit.
The further preferred technical scheme is as follows: the sleeve body unit comprises a sleeve body main body and a sleeve body line hole arranged on the sleeve body main body; the cap body unit comprises a cap body main body and a cap body opening, wherein the cap body main body is sleeved on the outer side surface of the sensor outer shell and used for limiting and fixing the outer side of the cap body main body, and the cap body opening is arranged on the cap body main body and used for the lead to pass through.
The further preferred technical scheme is as follows: the sensor shell is characterized in that a protruding strip is arranged on the outer side surface of the sensor shell, and the cap body unit further comprises a clamping groove which is arranged on the inner side surface of the cap body main body and used for inserting and fixing the protruding strip.
The further preferred technical scheme is as follows: the vertical cross-sectional shape of the protruding strips is a right trapezoid, and the lower relatively long edge is arranged on the outer side face of the sensor outer shell.
The further preferred technical scheme is as follows: the sleeve body unit further comprises a sleeve body protruding block protruding from the upper surface of the sleeve body main body and inserted into the sleeve body opening, and the sleeve body line hole penetrates through the sleeve body protruding block.
The further preferred technical scheme is as follows: the sleeve body unit further comprises an annular inclined surface which is arranged at the lower end of the sleeve body main body and used for clamping and limiting on the inclined inner annular surface of the sensor outer shell.
The further preferred technical scheme is as follows: the sleeve body main body is arranged in the sensor outer shell in an interference fit mode, and the sleeve body wire hole is inserted and installed by the lead in the interference fit mode.
The further preferred technical scheme is as follows: the thermistor and the lead are electrically connected and fixed through a soldering block positioned at the innermost side of the sensor shell.
The further preferred technical scheme is as follows: and a potting rubber block used for bonding and fixing the lead and the sleeve body unit is arranged in the sensor outer shell and between the sleeve body unit and the soldering block.
The further preferred technical scheme is as follows: the outer side surface of the sleeve body main body is arranged on the outer side of the sensor outer shell in a protruding mode and is pressed and fixed by the cap body main body.
The utility model discloses a set up thermistor, wire, the mode of cover body unit and cap body unit in the sensor housing body, reach the high effect of jar temperature sensor structural stability. The utility model has the advantages of jar temperature sensor seals protection structural stability is high, and the difficult separation of sensor shell body, thermistor and wire three, rubber material's cover body unit shock attenuation protection is effectual to and jar temperature sensor long service life.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the position structure of the convex strip of the present invention.
Detailed Description
The following description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Example (b): as shown in fig. 1 and fig. 2, a novel high-stability cylinder temperature sensor sealing protection structure includes a sensor outer shell 11, a thermistor 12 disposed in the sensor outer shell 11, and two wires 13 disposed on the thermistor 12 and extending outwards for connecting a traveling crane computer, and is characterized in that: the sensor shell body unit comprises a sensor shell body 11, and is characterized by further comprising a cover body unit 1 and a cap body unit 2, wherein the cover body unit 1 is sleeved on two conducting wires 13 and is attached to the inner ring surface of the sensor shell body 11, and the cap body unit 2 is clamped on the outer side surface of the sensor shell body 11 and is used for limiting and fixing the cover body unit 1 from the outer side.
In this embodiment, the manner of adding the cap body unit 2 to the cap body unit 1 improves the existing sealing and fixing manner only with potting adhesive, so that the bonding strength of the sensor outer shell 11, the thermistor 12 and the lead 13 is high, the anti-pulling capability is strong, the sealing effect is good, and the thermistor 12 is not easily separated from the lead 13 after long-term use, thereby ensuring the long-term use effect of engine cylinder temperature detection.
The sheath unit 1 comprises a sheath body 101 and a sheath string hole 102 arranged on the sheath body 101; the cap unit 2 includes a cap body 201 sleeved on the outer side surface of the sensor outer shell 11 and used for limiting and fixing the outer side of the cap body 101, and a cap opening 202 arranged on the cap body 201 and used for the lead 13 to pass through. The outer side surface of the sensor outer shell 11 is provided with a protruding strip 3, and the cap body unit 2 further comprises a clamping groove 203 which is arranged on the inner side surface of the cap body 201 and used for inserting and fixing the protruding strip 3.
In this embodiment, the rubber material of the cover body main part 101 is in the sensor outer shell 11 with play elasticity block fixed action between the wire 13, and right the sensor outer shell 11 seals the protection, at last again by the cover body main part 201 is spacing from the outside, guarantees the cover body main part 101 does not become flexible, does not drop, wherein protruding strip 3 with the mutual block of block groove 203 guarantees the installation of the cover body main part 201 is firm, and this is the key and the starting point of whole sealed protection architecture.
The vertical cross-sectional shape of the protruding strips 3 is a right trapezoid, and the lower relatively long edge is arranged on the outer side surface of the sensor outer shell 11.
In this embodiment, the sensor outer shell 11 and the cap body 201 may be in a corresponding circular shape, in this case, the protruding strips 3 are annular strips with right trapezoid cross sections, and when the sensor outer shell 11 and the cap body 201 are in a corresponding polygonal shape, such as a regular hexagon, six protruding strips 3 are respectively engaged and fixed with six engaging grooves 203, so as to ensure the installation stability of the cap body 201.
The sheath unit 1 further comprises a sheath protruding block 103 protruding from the upper surface of the sheath body 101 and inserted into the sheath opening 202, and the sheath string hole 102 penetrates through the sheath protruding block 103.
In this embodiment, the side surface of the sleeve protrusion 103 is tightly attached to the inner ring surface of the cap opening 202, and has an annular clamping function on the basis of the original axial clamping limitation, so as to further ensure the installation stability of the sleeve main body 101, the sleeve main body 101 is stable and immobile, and the lead 13 can be stably connected to the thermistor 12 for a long time to prevent separation.
The sleeve unit 1 further includes an annular inclined surface 104 disposed at a lower end of the sleeve body 101 and configured to engage and limit the inclined inner annular surface of the sensor outer housing 11.
In this embodiment, the annular inclined surface 104 is an inner supporting portion of the sheath body 101, and cooperates with the cap body 201 to perform an extruding, clamping and fixing action on the outer side of the sheath body 101, so as to finally ensure the installation stability of the sheath body 101 in the sensor outer shell 11 and avoid loosening and dropping.
The sheath body 101 is arranged in the sensor outer shell 11 in an interference fit manner, and the sheath string hole 102 is inserted and installed by the lead 13 in an interference fit manner.
In this embodiment, when the sheath body 101 is not extruded, the outer diameter or the outer dimension is 2-5mm larger than the inner diameter or the inner dimension of the sensor outer shell 11, and the inner diameter of the sheath body wire hole 102 is 1-3mm smaller than the outer diameter of the lead 13, so as to ensure the final installation stability of the sheath body 101 and the lead 13 on the sensor outer shell 11 by the above interference fit.
The thermistor 12 and the lead wire 13 are electrically connected and fixed by a solder bump 4 located at the innermost side of the sensor case 11. The sensor outer shell 11 is arranged in the sleeve body unit 1 and the solder blocks 4, and the lead 13 and the potting rubber block 5 of the sleeve body unit 1 are arranged between the sleeve body unit 1 and the solder blocks 4 and used for bonding and fixing. The outer side surface of the sleeve body 101 is arranged outside the sensor outer shell 11 in a protruding manner and is pressed and fixed by the cap body 201.
In this embodiment, the soldering block 4 is used for the electrically conductive connection in the sensor outer shell 11 thermistor 12 with wire 13 goes on according to current mode, embedding rubber block 5 is used for fixing on a basis wire 13, sealed protection thermistor 12, finally cover body 101 protrudes 1-3mm again to by cap body 201 compresses tightly the compaction, guarantees that whole cylinder temperature sensor structure has the leakproofness good to and bonding strength is big between the part, the difficult advantage that disperses.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. These are non-inventive modifications, which are intended to be protected by patent laws within the scope of the appended claims.
Claims (10)
1. The utility model provides a novel cylinder temperature sensor of high stability seals protection architecture, includes sensor housing body (11), sets up thermistor (12) in the sensor housing body (11), and set up thermistor (12) are gone up and outwards stretch out two wires (13) that are used for connecting the driving computer, its characterized in that: still including cup jointing the setting two on wire (13) and the laminating setting is in cover body unit (1) on sensor shell body (11) inner ring face to and the block sets up on sensor shell body (11) lateral surface and be used for following the spacing fixed cap body unit (2) of cover body unit (1) in the outside.
2. The novel high-stability cylinder temperature sensor sealing protection structure according to claim 1, characterized in that: the sleeve body unit (1) comprises a sleeve body main body (101) and a sleeve body line hole (102) arranged on the sleeve body main body (101); the cap body unit (2) comprises a cap body main body (201) which is sleeved on the outer side surface of the sensor outer shell (11) and used for limiting and fixing the outer side of the cap body main body (101), and a cap body opening (202) which is arranged on the cap body main body (201) and used for the lead (13) to pass through.
3. The novel high-stability cylinder temperature sensor sealing protection structure according to claim 2, characterized in that: the sensor cap is characterized in that a protruding strip (3) is arranged on the outer side surface of the sensor outer shell (11), and the cap body unit (2) further comprises a clamping groove (203) which is arranged on the inner side surface of the cap body main body (201) and used for inserting and fixing the protruding strip (3).
4. The novel high-stability cylinder temperature sensor sealing protection structure according to claim 3, characterized in that: the vertical cross-sectional shape of the protruding strips (3) is a right trapezoid, and the lower relatively long edge is arranged on the outer side surface of the sensor outer shell (11).
5. The novel high-stability cylinder temperature sensor sealing protection structure according to claim 2, characterized in that: the sheath unit (1) further comprises a sheath protruding block (103) which is arranged on the upper surface of the sheath body (101) in a protruding mode and is inserted into the sheath opening (202), and the sheath line hole (102) penetrates through the sheath protruding block (103).
6. The novel high-stability cylinder temperature sensor sealing protection structure according to claim 2, characterized in that: the sleeve body unit (1) further comprises an annular inclined surface (104) which is arranged at the lower end of the sleeve body main body (101) and used for clamping and limiting on the inclined inner annular surface of the sensor outer shell (11).
7. The novel high-stability cylinder temperature sensor sealing protection structure according to claim 2, characterized in that: the sleeve body main body (101) is arranged in the sensor outer shell (11) in an interference fit mode, and the sleeve body wire hole (102) is inserted and installed through the lead (13) in the interference fit mode.
8. The novel high-stability cylinder temperature sensor sealing protection structure according to claim 1, characterized in that: the thermistor (12) and the lead (13) are in conductive connection and fixed through a soldering block (4) located on the innermost side of the sensor outer shell (11).
9. The novel high-stability cylinder temperature sensor sealing protection structure according to claim 8, characterized in that: the sensor is characterized in that the sensor outer shell (11) is internally provided with a sleeve body unit (1) and a potting rubber block (5) used for bonding and fixing the lead (13) and the sleeve body unit (1) is arranged between the sleeve body unit (1) and the soldering tin block (4).
10. The novel high-stability cylinder temperature sensor sealing protection structure according to claim 2, characterized in that: the outer side surface of the sleeve body main body (101) is arranged on the outer side of the sensor outer shell (11) in a protruding mode and is pressed and fixed by the cap body main body (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921531180.0U CN210922854U (en) | 2019-09-16 | 2019-09-16 | Novel cylinder temperature sensor sealing protection structure with high stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921531180.0U CN210922854U (en) | 2019-09-16 | 2019-09-16 | Novel cylinder temperature sensor sealing protection structure with high stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210922854U true CN210922854U (en) | 2020-07-03 |
Family
ID=71365971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921531180.0U Expired - Fee Related CN210922854U (en) | 2019-09-16 | 2019-09-16 | Novel cylinder temperature sensor sealing protection structure with high stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210922854U (en) |
-
2019
- 2019-09-16 CN CN201921531180.0U patent/CN210922854U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200703 Termination date: 20210916 |
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| CF01 | Termination of patent right due to non-payment of annual fee |