CN210922855U

CN210922855U - Flexible sealing protection structure for cylinder temperature sensor

Info

Publication number: CN210922855U
Application number: CN201921531713.5U
Authority: CN
Inventors: 卢渊; 刘汉国; 刘畅
Original assignee: Anhui Yiheng Temperature Control Technology Co ltd
Current assignee: Anhui Yiheng Temperature Control Technology Co ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-07-03
Anticipated expiration: 2029-09-16

Abstract

The utility model belongs to the technical field of vehicle engine structure, especially, relate to a protection architecture is sealed to nimble type for jar temperature sensor. The utility model discloses a set up wire and embedment in the middle section cavity of sensor body and glue the piece, set up the mode of block unit and spiro union cap unit in outside notch department, reach the sealed stable effectual effect of protection architecture of jar temperature sensor. The utility model has the advantages of jar temperature sensor seals protection architecture stability is high, and sensor body and wire are difficult for separating, and the block unit shock attenuation of rubber material seals protection effectually, and the mode that the block unit was fixed through the block to the spiro union cap unit guarantees that thermistor is stable at this internal and sealed protection of sensor to and whole jar temperature sensor long service life.

Description

Flexible sealing protection structure for cylinder temperature sensor

Technical Field

The utility model belongs to the technical field of vehicle engine structure, especially, relate to a protection architecture is sealed to nimble type for jar temperature sensor.

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 glue, wherein the pouring glue 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 glue 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 wire is connected with the thermistor and falls off from the outer shell, the cylinder temperature sensing fails, at the moment, an ECU (electronic control unit) can only shut down an engine, and great troubles are brought to the follow-up maintenance and troubleshooting 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 and the lead 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 sealed protection architecture of nimble type for jar temperature sensor, it can set up wire and filling and sealing glue piece through setting up in the middle section cavity at sensor body, sets up the mode of block unit and spiro union cap unit in outside notch department, reaches the sealed stable effectual effect of protection architecture of jar temperature sensor. The utility model has the advantages of jar temperature sensor seals protection architecture stability is high, and sensor body and wire are difficult for separating, and the block unit shock attenuation of rubber material seals protection effectually, and the mode that the block unit was fixed through the block to the spiro union cap unit guarantees that thermistor is stable at this internal and sealed protection of sensor to and whole jar temperature sensor long service life.

The utility model provides a technical scheme that above-mentioned problem adopted is: the utility model provides a protection architecture is sealed to nimble type for jar temperature sensor, is including setting up the embedment that passes in the middle section cavity of sensor body and by the wire glue piece, its characterized in that: the sensor comprises a sensor body, and is characterized by further comprising an outer side notch arranged on the sensor body, a clamping block unit arranged on the outer side notch and used for sealing and fixing the sensor body and the lead, and a screw joint cap unit arranged on the outer side surface of the sensor body in a screw joint mode and used for limiting and fixing the outer side of the clamping block unit.

The further preferred technical scheme is as follows: the clamping block unit comprises an elastic block body which is inserted into the outer side notch and protrudes towards the middle section cavity, an annular clamping opening which is arranged at the inner side of the elastic block body and is used for clamping and fixing the inclined amplifying section between the middle section cavity and the outer side notch, and a wire guide hole which is arranged in the elastic block body.

The further preferred technical scheme is as follows: the outer side surface of the elastic block body is arranged on the outer side of the outer side notch in a protruding mode and is compressed and fixed by the screw cap unit, and the vertical section of the annular clamping opening is provided with two opening side edges which form an obtuse angle with each other.

The further preferred technical scheme is as follows: the clamping block unit further comprises a second annular clamping opening which is arranged on the outer side of the elastic block body and used for clamping and fixing the screw cap unit, and the included angle of the cross section of the second annular clamping opening is right-angled.

The further preferred technical scheme is as follows: the screw cap unit comprises a screw cap body and a cap body middle opening, wherein the inner side face of the screw cap body is in screw connection with the outer side face of the sensor body, the cap body middle opening is arranged on the screw cap body, the inner side edge of the screw cap body is fixed on the second annular clamping opening in a clamping mode, and the conducting wire penetrates through the cap body middle opening.

The further preferred technical scheme is as follows: the inner side surface of the opening in the middle of the cap body is in threaded connection with a long axial ring surface on the second annular clamping opening, wherein the long axial ring surface is different from the ring plane.

The further preferred technical scheme is as follows: and the outer side notch is provided with a bulge for clamping the elastic block body.

The further preferred technical scheme is as follows: the bulges are hemispheroids or annular strips vertical to the long axis direction.

The further preferred technical scheme is as follows: the side wall of the sensor body at the outer side notch is provided with two side annular notches with the outer sides inward and the inner sides outward.

The further preferred technical scheme is as follows: the bolt connection cap body is arranged on the side faces of the annular notches at the two sides in the outer side in a bolt connection mode and is vertically flush with the outer side face of the sensor body at the middle section cavity.

The utility model discloses a set up wire and embedment in the middle section cavity of sensor body and glue the piece, set up the mode of block unit and spiro union cap unit in outside notch department, reach the sealed stable effectual effect of protection architecture of jar temperature sensor. The utility model has the advantages of jar temperature sensor seals protection architecture stability is high, and sensor body and wire are difficult for separating, and the block unit shock attenuation of rubber material seals protection effectually, and the mode that the block unit was fixed through the block to the spiro union cap unit guarantees that thermistor is stable at this internal and sealed protection of sensor to and whole jar temperature sensor long service life.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the position structure of the annular strip-shaped protrusion 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 flexible sealing protection structure for a cylinder temperature sensor comprises an encapsulating rubber block 13 which is arranged in a middle cavity 11 of a sensor body and is penetrated by a lead 12, an outer notch 1 arranged on the sensor body, a clamping block unit 2 which is arranged on the outer notch 1 and is used for sealing and fixing the sensor body and the lead 12, and a screw joint cap unit 3 which is arranged on the outer side surface of the sensor body in a screw joint mode and is used for limiting and fixing the clamping block unit 2 at the outer side.

In this embodiment, after the outside notch 1 is seted up in the middle section cavity 11 outside, in proper order insert the rubber material and have suitable elasticity on the outside notch 1 block unit 2 for outside elastic clamping fixes on the 1 inner ring face in the outside notch, the inboard is then pressed from both sides through the trompil mode and is pressed from both sides wire 12, finally guarantees wire 12 is in this internal stable in structure of sensor is difficult for passing through wire 12 internal connection's thermistor is protected by sealed, not by the weeping infiltration can.

Finally, the screw cap unit 3 is screwed to press the engaging block unit 2, thereby further enhancing the triple effects of engaging, sealing and fixing the engaging block unit 2.

The clamping block unit 2 comprises an elastic block body 201 inserted into the outer side notch 1 and protruding toward the middle section cavity 11, an annular clamping opening 202 arranged inside the elastic block body 201 and used for clamping and fixing on an inclined amplification section between the middle section cavity 11 and the outer side notch 1, and a wire guide 203 arranged in the elastic block body 201. The outer side surface of the elastic block body 201 is arranged on the outer side of the outer side notch 1 in a protruding mode and is compressed and fixed by the screw cap unit 3, and the vertical section of the annular clamping opening 202 is provided with two opening side edges which form an obtuse angle with each other. The clamping block unit 2 further comprises a second annular clamping opening 204 which is arranged on the outer side of the elastic block body 201 and used for clamping and fixing the screw cap unit 3, and the included angle of the cross section of the second annular clamping opening is right-angled. The screw cap unit 3 comprises a screw cap body 301 with an inner side surface in screw connection with the outer side surface of the sensor body, and a cap body middle opening 302 which is arranged on the screw cap body 301, the inner side edge of the screw cap body is clamped and fixed on the second annular clamping opening 204, and the lead 12 penetrates through the cap body middle opening 302.

In this embodiment, the inner side of the elastic block 201 abuts against the inclined table surface in the sensor body through the annular engaging opening 202, the ring surface presses on the inner ring surface of the outer slot 1 through the elastic effect of the ring surface, the outer side of the elastic block is pressed by the screw cap 301, and finally the elastic block 201 seals, seals and protects the outer slot 1 in a manner that the elastic block is elastically deformed and compressed properly.

On the other hand, the second annular engaging opening 204 is engaged with the opening 302 in the middle of the cap body, and the sealing area is increased by extruding and sealing the two side surfaces of the engaging opening, so as to further improve the sealing performance, and the bolt-on cap body 301 itself needs to pass through the lead 12, so that the engaging manner of the second annular engaging opening 204 has a larger sealing surface length and strength, i.e. the leakage is more difficult to permeate, compared with the manner that the outer side surface of the elastic block 201 and a single opening of the bolt-on cap body 301 are planar, thereby further ensuring the sealing protection effect of the cylinder temperature sensor.

In addition, the spiro union cap body 301 spiro union setting, elasticity block 201 inserts the block, and both are movable mounting, consequently also be convenient when the jar temperature sensor need carry out spare part and change, this just reflects the flexibility of sealed protection architecture.

The inner side surface of the opening 302 in the middle of the cap body is in threaded connection with a long axial ring surface different from the ring plane on the second annular clamping opening 204.

In this embodiment, the middle opening 302 of the cap body and the annular curved surface of the second annular engaging opening 204, i.e. the vertical ring surface in the drawing, are screwed together, which further extends the length of the contact surface, and the two ring surfaces are screwed together, which has an advantage of greater sealing effect compared to the pressing contact only.

And a bulge for clamping the elastic block body 201 is arranged on the outer side notch 1. The bulges are hemispheroids or annular strips vertical to the long axis direction.

In this embodiment, the protrusion is used to further extrude the elastic block 201, so that the elastic block 201 and the contact area between the inner annular surfaces of the outer notch 1 are increased, the static friction force is increased, and therefore the elastic block 201 is less prone to falling off, the sealing protection effect is ensured, and the hemispheroids can be uniformly distributed.

The sensor body is provided with two side annular notches with the outer side facing inwards and the inner side facing outwards on the side wall of the outer notch 1. The bolt-on cap body 301 is arranged on the lateral sides of the annular notches at the two sides in a bolt-on manner, and is vertically flush with the lateral side of the sensor body at the middle-section cavity 11.

In this embodiment, the outer side of the sidewall of the outer slot 1 is retracted inward, and then the bolt-on cap 301 is screwed on, so that the side surface of the bolt-on cap 301 is flush with the side surface of the sensor body, i.e. the bolt-on cap is as thick as the side surface of the sensor body, thereby avoiding the problem that the bolt-on cap 301 is easily knocked and loosened if the end angle protrudes.

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

1. The utility model provides a protection architecture is sealed to nimble type for jar temperature sensor, is including setting up potting compound piece (13) that pass in middle section cavity (11) of sensor body and by wire (12), its characterized in that: the sensor is characterized by further comprising an outer side notch (1) arranged on the sensor body, a clamping block unit (2) arranged on the outer side notch (1) and used for sealing and fixing the sensor body and the lead (12), and a screw cap unit (3) arranged on the outer side surface of the sensor body in a screw mode and used for limiting and fixing the outer side of the clamping block unit (2).

2. The flexible seal protection structure for a cylinder temperature sensor according to claim 1, wherein: the clamping block unit (2) comprises an elastic block body (201) which is inserted into the outer side notch (1) and protrudes towards the middle section cavity (11), an annular clamping opening (202) which is arranged on the inner side of the elastic block body (201) and used for clamping and fixing the inclined amplifying section between the middle section cavity (11) and the outer side notch (1), and a wire guide hole (203) arranged in the elastic block body (201).

3. The flexible seal protection structure for a cylinder temperature sensor according to claim 2, wherein: the outer side face of the elastic block body (201) is arranged in a protruding mode on the outer side of the outer side groove opening (1) and is pressed and fixed by the screw cap unit (3), and the vertical section of the annular clamping opening (202) is provided with two opening side edges which are obtuse angles with each other.

4. The flexible seal protection structure for a cylinder temperature sensor according to claim 2, wherein: the clamping block unit (2) further comprises a second annular clamping opening (204) which is arranged on the outer side of the elastic block body (201) and used for clamping and fixing the screw cap unit (3) and has a right-angle-shaped cross-section included angle.

5. The flexible seal protection structure for a cylinder temperature sensor according to claim 4, wherein: the screw cap unit (3) comprises a screw cap body (301) with an inner side face and an outer side face, wherein the inner side face is in screw connection with the outer side face of the sensor body, the screw cap body is arranged on the screw cap body (301), the inner side edge of the screw cap body is clamped and fixed on a cap body middle opening (302) on the second annular clamping opening (204), and the lead (12) penetrates through the cap body middle opening (302).

6. The flexible seal protection structure for a cylinder temperature sensor according to claim 5, wherein: the inner side surface of the opening (302) in the middle of the cap body is in threaded connection with a long axial ring surface on the second annular clamping opening (204) different from the ring plane.

7. The flexible seal protection structure for a cylinder temperature sensor according to claim 2, wherein: and a bulge used for clamping the elastic block body (201) is arranged on the outer side notch (1).

8. The flexible seal protection structure for a cylinder temperature sensor according to claim 7, wherein: the bulges are hemispheroids or annular strips vertical to the long axis direction.

9. The flexible seal protection structure for a cylinder temperature sensor according to claim 5, wherein: the sensor body is provided with two side annular notches with the outer sides inward and the inner sides outward on the side wall at the outer notch (1).

10. The flexible seal protection structure for a cylinder temperature sensor according to claim 9, wherein: the bolt connection cap body (301) is arranged on the side faces of the annular notches at the two sides at the outer side in a bolt connection mode and is vertically flush with the outer side face of the sensor body at the middle section cavity (11) in a side edge mode.