CN218440949U

CN218440949U - Control valve with detect feedback function

Info

Publication number: CN218440949U
Application number: CN202222651520.1U
Authority: CN
Inventors: 吕友权; 李赛威
Original assignee: Hilite Automobile Technology Co ltd
Current assignee: Hilite Automobile Technology Co ltd
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2023-02-03
Anticipated expiration: 2032-10-09

Abstract

The utility model provides a control valve with detect feedback function, control valve with detect feedback function is including enclosing and establishing casing, the setting that forms movable chamber the nut in the activity intracavity, with nut threaded connection's screw rod, be used for the drive screw rod pivoted drive arrangement, be used for control the drive plate of drive arrangement work, be used for the detection the hall sensor of drive arrangement work, the casing is including encircleing the control box in activity chamber, the drive plate with the control box is supported and is held to form in order to seal and accept the chamber, hall sensor sets up accept the intracavity. The utility model discloses a control valve with detect feedback function, through setting up hall sensor, thereby can detect drive arrangement's action in time discovers because the stifled problem that produces that changes of drive arrangement.

Description

Control valve with detect feedback function

Technical Field

The utility model relates to a control valve with detect feedback function.

Background

In the existing control valve structure, a driving device is driven by a control system signal to rotate so as to drive a valve needle to run up and down, so that the opening and closing functions of the control valve are realized. In the process of realizing opening and closing, if foreign matters exist in the valve body, the driving force of the driving device cannot overcome resistance to cause unsmooth operation or rotation blockage, and if detection feedback cannot be obtained in the process, the opening and closing of the control valve are abnormal.

In view of the above, there is a need to improve the existing control valve with a detection feedback function to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a control valve with detect feedback function to solve the unable unusual problem of detection drive arrangement of current control valve.

In order to achieve the above object, the utility model provides a control valve with detect feedback function, control valve with detect feedback function is in including enclosing the casing, the setting of establishing formation activity chamber the nut in the activity intracavity, with nut threaded connection's screw rod, be used for the drive screw rod pivoted drive arrangement, be used for control the drive plate of drive arrangement work, be used for detecting the hall sensor of drive arrangement work, the casing is including encircleing the control box in activity chamber, the drive plate with the control box is supported and is held and accept the chamber with the closed formation, hall sensor sets up accept the intracavity.

As a further improvement of the present invention, the housing further includes an edge the axial one side of the screw rod is used for covering the lid of the drive plate, the lid with the control box can be detached to set up.

As a further improvement of the present invention, the drive plate has a front side provided with an element and a back side not provided with an element, the front side faces the cover body, and the back side faces the hall sensor.

As a further improvement of the present invention, the driving device is in including setting up the permanent magnet in the movable cavity, connecting the permanent magnet and the connecting plate of the screw rod, being used for driving the permanent magnet with connecting plate pivoted coil, hall sensor is used for detecting the change of the magnetic pole of the permanent magnet.

As a further improvement of the present invention, the hall sensor is projected radially on the permanent magnet.

As a further improvement of the present invention, the hall sensor is located at a distance of less than or equal to 3.5mm from the permanent magnet in the radial direction.

As a further improvement, the coil is disposed in the housing and surrounds the accommodating cavity, the coil is smaller than the permanent magnet along the axial length.

As a further improvement of the present invention, the control valve with the detection feedback function further comprises a bracket fixed to the housing.

As a further improvement, the control valve with the function of detecting feedback further comprises a valve seat, a valve port in the valve seat, a valve needle for sealing the valve port, wherein the valve needle is connected with the screw rod.

As a further improvement of the present invention, the control valve with detection feedback function further comprises a stop spring surrounding the guide spring of the nut setting for limiting the axial movement of the guide spring.

The utility model has the advantages that: the utility model discloses a control valve with detect feedback function, through setting up hall sensor, thereby can detect drive arrangement's action in time discovers the problem that produces because drive arrangement is stifled changeing.

Drawings

Fig. 1 is a schematic perspective view of a control valve with a detection feedback function according to the present invention;

fig. 2 is a schematic sectional structure diagram of the control valve with the detection feedback function according to the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 2, the control valve 100 with detection feedback function of the present invention includes a housing 2 enclosing to form a movable cavity 21, a bracket 1 fixed to the housing 2, a nut 3 disposed in the movable cavity 21, a screw rod 4 threaded with the nut 3, a driving device 5 for driving the screw rod 4 to rotate, a driving plate 6 for controlling the driving device 5 to operate, a hall sensor 7 for detecting the driving device 5 to operate, a valve seat 8, a valve port 9 disposed in the valve seat 8, a valve needle 10 for closing the valve port 9, a guide spring 11 disposed around the nut 3, and a stop spring 12 for limiting the guide spring 11 to move axially.

The valve needle 10 is connected with the screw 4, and the screw 4 rotates up and down, so that the valve needle 10 can be driven to open or close the valve port 9, thereby controlling the operation of the control valve 100 with the detection feedback function.

The housing 2 comprises a control box 22 surrounding the movable cavity 21 and a cover 23 along one axial side of the screw rod 4 for covering the drive plate 6, wherein the cover 23 and the control box 22 are detachably arranged.

The driving plate 6 is abutted against the control box 22 to form a containing cavity 24 in a closed mode, and the hall sensor 7 is arranged in the containing cavity 24.

The drive board 6 has a front surface provided with components facing the cover 23 and a back surface provided with no components facing the hall sensor 7.

After the cover body 23 is opened, elements on the front surface of the driving plate 6 are fully exposed, so that heat dissipation of the elements can be facilitated, overhaul of the driving plate 6 after damage of the driving plate 6 is facilitated, and problem analysis is facilitated.

Drive arrangement 5 is including setting up permanent magnet 51 in the activity chamber 21, connect permanent magnet 51 with the connecting plate 53 of screw rod 4, be used for the drive permanent magnet 51 with connecting plate 53 pivoted coil 52, hall sensor 7 is used for detecting the change of permanent magnet 51's magnetic pole, it is further, permanent magnet 51 rotates once every, and the magnetic pole changes once, hall sensor 7 will accept a signal, if the signal of receiving is unusual, then can judge that it is drive arrangement 5 bite, stifled commentaries on classics, thereby can in time judge whether the control valve 100 that has the detection feedback function is inefficacy.

The coil 52 is disposed in the housing 2 and surrounds the accommodating cavity 24, and a length of the coil 52 in the axial direction is smaller than a length of the permanent magnet 51 in the axial direction. So that a part of the permanent magnet 51 is available for being driven in rotation by said coil 52 and a part for the detection of the hall sensor 7.

The hall sensor 7 projects radially on the permanent magnet 51. The distance between the Hall sensor 7 and the permanent magnet 51 in the radial direction is less than or equal to 3.5mm. This is provided for the hall sensor 7 to better receive the magnetic pole signal of the permanent magnet 51.

The control valve 100 with the detection feedback function of the present invention can detect the motion of the driving device 5 by providing the hall sensor 7, and find the problem caused by the rotation blockage of the driving device 5 in time; the Hall sensor 7 is arranged on one side, away from the cover body 23, of the driving plate 6, so that the driving plate 6 can be conveniently overhauled and radiated.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A control valve with detection feedback function is characterized in that: control valve (100) with detect feedback function is including enclosing casing (2) of establishing formation activity chamber (21), setting in nut (3) in activity chamber (21), with nut (3) threaded connection's screw rod (4), be used for the drive screw rod (4) pivoted drive arrangement (5), be used for control drive plate (6) of drive arrangement (5) work, be used for detecting hall sensor (7) of drive arrangement (5) work, casing (2) are including encircleing control box (22) in activity chamber (21), drive plate (6) with control box (22) support to be held and accept chamber (24) in order to seal formation, hall sensor (7) set up accept in chamber (24).

2. The control valve with the detection feedback function according to claim 1, characterized in that: the shell (2) further comprises a cover body (23) which is used for covering the driving plate (6) along one axial side of the screw (4), and the cover body (23) and the control box (22) are detachably arranged.

3. The control valve with the detection feedback function according to claim 2, characterized in that: the drive board (6) has a front surface provided with elements and a back surface not provided with elements, the front surface faces the cover body (23), and the back surface faces the Hall sensor (7).

4. The control valve with a function of detecting feedback according to claim 1, characterized in that: drive arrangement (5) are including setting up permanent magnet (51) in activity chamber (21), connect permanent magnet (51) and connecting plate (53) of screw rod (4), be used for the drive permanent magnet (51) with connecting plate (53) pivoted coil (52), hall sensor (7) are used for detecting the change of the magnetic pole of permanent magnet (51).

5. The control valve with a function of detecting feedback according to claim 4, wherein: the Hall sensor (7) projects on the permanent magnet (51) along the radial direction.

6. The control valve with the detection feedback function according to claim 5, characterized in that: the distance between the Hall sensor (7) and the permanent magnet (51) in the radial direction is less than or equal to 3.5mm.

7. The control valve with the detection feedback function according to claim 4, characterized in that: the coil (52) is arranged in the shell (2) and surrounds the accommodating cavity (24), and the length of the coil (52) in the axial direction is smaller than that of the permanent magnet (51) in the axial direction.

8. The control valve with the detection feedback function according to claim 1, characterized in that: the control valve (100) with the detection feedback function further comprises a support (1) fixed with the shell (2).

9. The control valve with the detection feedback function according to claim 1, characterized in that: the control valve (100) with the detection feedback function further comprises a valve seat (8), a valve port (9) arranged in the valve seat (8), and a valve needle (10) used for closing the valve port (9), wherein the valve needle (10) is connected with the screw (4).

10. The control valve with a function of detecting feedback according to claim 1, characterized in that: the control valve (100) with the detection feedback function further comprises a guide spring (11) arranged around the nut (3) and a stop spring (12) used for limiting the guide spring (11) to move along the axial direction.