CN220775575U - Sensor and motor - Google Patents

Abstract

The application discloses sensor and motor, sensor include barrel, installation panel and response subassembly. The cylinder body is provided with an opening, and a detection hole is also formed in the cylinder body. The installation panel covers the opening, and the installation panel and the cylinder body enclose together to form a containing cavity. At least part of the sensing component is arranged in the accommodating cavity, the first end of the sensing component penetrates through the detection hole and protrudes out of the outer surface of the cylinder body, the first end is used for being matched with the part to be detected to detect the part to be detected, the second end of the sensing component penetrates through the mounting panel and extends to one side, away from the accommodating cavity, of the mounting panel, and the second end is used for being connected with the signal receiving device. In the technical scheme of this application, the sensor can form stable connection with the motor, reduces vibration or impact and makes the risk that the sensor takes place to shift. In addition, the steps of sensor installation can be simplified, and the installation efficiency is improved.

Description

Sensor and motor

Technical Field

The present application relates to the field of sensing devices, and in particular, to a sensor and a motor.

Background

At present, electric devices such as electric automobiles, electric airplanes and the like are generally provided with a power battery and a motor, the power battery supplies power for the motor, and the motor converts electric energy into mechanical energy so as to drive the electric devices to operate.

In order to improve the running stability of the motor, the temperature, vibration and other states of the motor are monitored by the sensor, and when the temperature or vibration amplitude of the motor exceeds a preset value, a prompt and an alarm are sent out, so that the motor is prevented from running to fail. How to stably arrange the sensing device on the motor and adapt to external vibration and impact is also one of the problems studied in the art.

Disclosure of Invention

In view of the above, the present application provides a sensor and a motor capable of improving the stability of the connection of the sensor and the motor.

In a first aspect, the present application provides a sensor comprising a barrel, a mounting panel, and a sensing assembly. The cylinder body is provided with an opening, and a detection hole is also formed in the cylinder body. The installation panel covers the opening, and the installation panel encloses jointly with the barrel and closes and form the chamber that holds, and the cylinder body outside of motor is located to the installation panel. At least part of the sensing component is arranged in the accommodating cavity, the first end of the sensing component penetrates through the detection hole and protrudes out of the outer surface of the cylinder body, the first end is used for being matched with the part to be detected to detect the part to be detected, the second end of the sensing component penetrates through the mounting panel and extends to one side, away from the accommodating cavity, of the mounting panel, and the second end is used for being connected with the signal receiving device.

In the technical scheme of this application embodiment, the barrel of sensor forms stable accommodation chamber space with the installation panel, guarantees the stability of sensing assembly operation. The barrel of sensor can form stable connection with the cylinder body of motor to the outside of motor cylinder body can be located to the installation panel of sensor, can simplify the step of sensor installation, improves installation effectiveness. The induction component stretches out outside the motor, can be convenient for be connected with signal receiving arrangement, guaranteed signal transmission's stability, improved the efficiency of installation and maintenance.

In some embodiments, the sensor further includes an elastic member disposed in the accommodating cavity, and two ends of the elastic member respectively abut against the sensing assembly and the mounting panel. Through setting up the elastic component, exert pressure to the response subassembly, make the response subassembly have the trend that stretches out to the detection hole outward, improve the response subassembly and treat the laminating degree of survey part, improve measuring precision.

In some embodiments, the sensor further comprises a first seal disposed on a side of the mounting panel facing the barrel, the first seal disposed along a circumferential direction of the barrel. Through setting up first sealing member, improve the ascending sealing performance of barrel circumference, reduce the risk that liquid in the cylinder passes through barrel circumference and outwards leaks.

In some embodiments, the mounting panel is recessed toward a side of the barrel to form a first seal groove for receiving at least a portion of the first seal. Foretell structure can realize spacing to first sealing member through setting up first seal groove, reduces that first sealing member takes place to shift at motor operation in-process, improves sealing performance.

In some embodiments, the sensor includes a second seal disposed on a side of the cylinder facing away from the receiving cavity, the second seal surrounding a periphery of the cylinder, the second seal for effecting a seal between the cylinder and the cylinder. By arranging the second sealing piece, the sealing performance between the cylinder body and the motor is improved, and the risk that liquid in the cylinder body leaks through a gap between the cylinder body and the motor is reduced.

In some embodiments, a side surface of the barrel facing away from the receiving cavity is recessed to form a second sealing groove for receiving at least a portion of the second seal. The structure can limit the first sealing element by arranging the second sealing groove, so that the displacement of the second sealing element in the running process of the motor is reduced, and the sealing performance is improved.

In some embodiments, the sensing assembly includes a guide, a sensing element, and a connection harness. The guide piece is provided with a through hole, the guide piece is arranged in the accommodating cavity, the through hole is communicated with the detection hole, the circumferential direction of the guide piece protrudes outwards to form a limiting part, and one end of the elastic piece is abutted to the limiting part. At least part of the detection element is arranged in the through hole, and the detection element is connected with the guide piece. One end of the connecting wire harness is connected to the detecting element, the other end of the connecting wire harness penetrates through the mounting panel and extends to one side, away from the accommodating cavity, of the mounting panel, and the connecting wire harness is used for being connected with the signal receiving device.

In the above technical scheme, through setting up the guide to set up the through-hole in the guide and be used for holding detecting element, set up spacing portion and elastic component butt, replaced detecting element directly to be connected with the elastic component, improved detecting element's response sensitivity and measurement accuracy. Further, the connecting wire harness is arranged, temperature signals measured by the detecting element are transmitted to the outside of the motor, and real-time monitoring of the temperature of the motor is achieved.

In some embodiments, the portion of the guide member facing the detection hole protrudes to form a detection portion, the detection portion passes through the detection hole and protrudes from the surface of the side of the cylinder body facing away from the accommodating cavity, and the detection element is located on the detection portion. In the structure, the distance between the detection element and the part to be detected is shortened by arranging the detection part, and the sensitivity and the accuracy of the detection element measurement are improved.

In some embodiments, the sensing assembly further includes a middle piece disposed at an end of the sensing element remote from the connection harness, the middle piece being configured to mate with the site to be sensed. Through setting up the middleware, the middleware is direct to be contacted with the part that awaits measuring, can reduce the detecting element direct contact and await measuring the part and cause friction loss, has improved detecting element measuring sensitivity and accuracy.

In some embodiments, the sensing assembly further comprises a sealing sleeve disposed between the connection harness and the mounting panel. Through setting up sealed sleeve, improved the leakproofness of being connected between connection pencil and the installation panel, reduced the risk that liquid in the motor cylinder body leaked from the installation panel.

In some embodiments, the detection element is a temperature detection element, a vibration detection element, a displacement detection element, an angle detection element, or a speed detection element. The detection element can detect the performances of the motor in all aspects, and the detection element is arranged, so that the monitoring efficiency of the running condition of the motor is improved, and the running stability of the motor is improved.

In some embodiments, the cartridge is provided with a flow-directing aperture therethrough, the flow-directing aperture being in communication with the receiving chamber. In the technical scheme, the liquid in the accommodating cavity is guided into the cylinder body of the motor through the guide hole, so that the pressure balance between the inside and the outside of the accommodating cavity is realized, and the accuracy of temperature measurement is improved.

In some embodiments, the mounting panel protrudes circumferentially outward to form a mounting portion, the mounting portion being provided with a securing hole, the sensor further comprising a mounting member passing through the securing hole, the mounting member for connecting the mounting panel with the cylinder. The structure can improve the structural strength and stability of the connection between the mounting panel and the motor, and improves the mounting stability of the inductor.

In a second aspect, the present application provides a motor comprising the sensor of the above embodiment and a cylinder provided with a mounting hole. The cylinder body of the sensor is arranged in the mounting hole, the first end of the sensing component of the sensor penetrates through the mounting hole and stretches into the cylinder body, and the second end of the sensing component of the sensor penetrates through the mounting hole and extends out of the cylinder body to be connected with the signal receiving device.

The foregoing description is only an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more clearly understood, the following detailed description of the present application will be given.

Drawings

Features, advantages, and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a sensor according to one embodiment of the present application;

FIG. 2 is an exploded view of a sensor according to one embodiment of the present application;

FIG. 3 is an exploded view of a sensor according to another embodiment of the present application;

FIG. 4 is a schematic cross-sectional view of a sensor according to one embodiment of the present application;

FIG. 5 is a schematic view of a sensor according to another embodiment of the present application;

FIG. 6 is a schematic view of a sensor according to yet another embodiment of the present application;

fig. 7 is a schematic structural view of a sensor according to still another embodiment of the present application.

Detailed description of the reference numerals

1. A sensor; 10. a cylinder; 101. a detection hole; 102. a deflector aperture; 20. installing a panel; 201. a first sealing groove; 202. a mounting part; 203. a fixing hole; 30. an induction assembly; 301. a guide member; 302. a detection element; 303. connecting the wire harness; 304. a limit part; 305. a detection unit; 306. a middleware; 307. a sealing sleeve; 40. an elastic member; 50. a first seal; 60. a second seal; 70. and a mounting member.

Detailed Description

Embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical solutions of the present application, and thus are only examples, and are not intended to limit the scope of protection of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first," "second," etc. are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, which means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural sheets" refers to two or more (including two).

In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the embodiments of the present application and for simplifying the description, rather than indicating or implying that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

At present, in a new energy vehicle, a motor for driving wheels to run is generally arranged, temperature change can occur in the running process of the motor, and in order to ensure long-term stable running of the motor, the temperature of the motor is prevented from exceeding a set value, a temperature sensor is generally arranged in the motor, and the temperature of the motor is monitored in real time. The temperature sensor can be connected with the whole vehicle control system, and when the temperature of the motor exceeds a set value, the whole vehicle control system can send an alarm or start a cooling scheme to ensure the running stability of the motor.

In the related art, a temperature sensor of a motor is generally disposed in a motor cylinder, installation is inconvenient, and connection of the temperature sensor with an inner wall of the motor cylinder may be broken when the motor vibrates or is impacted, resulting in failure of the temperature sensor.

Based on the above considerations, in order to improve the stability of the sensor in connection with the motor, the present application provides a sensor comprising a cartridge, a mounting panel and an inductive component. In the technical scheme of this application embodiment, locate the sensor in the mounting hole of motor, can form stable the connection with the motor, reduce vibration or strike and lead to the risk that the sensor takes place to shift. And, barrel and installation panel form stable accommodation chamber space, guarantee the stability of sensing assembly operation. The mounting panel is arranged on the outer side of the motor cylinder body, so that the step of mounting the sensor can be simplified, and the mounting efficiency is improved. The induction component stretches out outside the motor, can be convenient for be connected with signal receiving arrangement, guaranteed signal transmission's stability, improved the efficiency of installation and maintenance.

The sensor and the motor disclosed by the embodiment of the application can be used in electric devices such as vehicles, ships or aircrafts, but are not limited to. Other equipment can use and have sensor and motor that this application disclosed, form stable connection between sensor and the motor like this, improved the stability of sensor operation.

For convenience of explanation, the following examples will be given by taking a sensor according to one embodiment of the present application as an example.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a sensor 1 according to an embodiment of the present application. Fig. 2 is an exploded structural schematic view of the sensor 1 according to one embodiment of the present application. Fig. 3 is an exploded view of a sensor 1 according to another embodiment of the present application.

The embodiment of the application provides a sensor 1, and the sensor 1 includes a barrel 10, a mounting panel 20 and a sensing assembly 30. The cylinder 10 has an opening, and a detection hole 101 is further provided in the cylinder 10. The mounting panel 20 covers the opening, and the mounting panel 20 and the cylinder 10 enclose together to form a containing cavity. At least part of the sensing assembly 30 is arranged in the accommodating cavity, a first end of the sensing assembly 30 penetrates through the detection hole 101 and protrudes out of the outer surface of the cylinder body 10, the first end is used for being matched with a part to be detected of the motor to detect the part to be detected, a second end of the sensing assembly 30 penetrates through the mounting panel 20 and extends to one side, away from the accommodating cavity, of the mounting panel 20, and the second end is used for being connected with the signal receiving device.

The motor is provided with a cylinder body, a containing cavity for containing motor components is formed in the cylinder body, and liquid can be injected into the cylinder body for lubrication, cooling and the like. The cylinder needs to be sealed to prevent leakage of liquid. The cylinder body is usually made of a metal material with certain strength, and the structure is relatively stable. The mounting hole can be the through-hole on the cylinder body, and the shape of mounting hole can match with the shape of barrel 10, reduces the risk of liquid leakage, improves the efficiency of barrel 10 installation.

The cylinder 10 may have a cylindrical structure with an inner cavity, and the accommodating cavity in the cylinder 10 may have a cylindrical shape, so that the manufacturing efficiency can be improved, and the cylinder can be manufactured by adopting materials such as metal, organic materials or ceramics. The detection hole 101 may be disposed opposite to the opening of the cylinder 10, and the detection hole 101 is used to receive the sensing assembly 30. The shape of the detection aperture 101 may match the shape of the sensing assembly 30. The radius of the opening of the barrel 10 may be greater than the radius of the probe aperture 101 to facilitate installation of the sensing assembly 30 into the receiving cavity. The cylinder 10 passes through the mounting hole of the cylinder, and the side wall of the cylinder 10 faces the hole wall of the mounting hole. The open end of the cylinder 10 faces the outside of the cylinder and is connected to the mounting panel 20.

The mounting panel 20 has a plate-like structure with a certain structural strength, and may be connected to the cylinder 10 by ultrasonic welding, threading or gluing. The mounting panel 20 is provided with a through hole, and the second end of the sensing assembly 30 passes through the through hole and extends out of the side of the mounting panel 20 facing away from the cylinder. The sensing assembly 30 may be a temperature sensor 1, the temperature sensor 1 being used for temperature monitoring of the internal operating components of the motor. The temperature sensor 1 may convert the temperature signal into an electrical signal and transmit it to the outside.

In the technical scheme of this application embodiment, locate sensor 1 in the mounting hole of motor, can form stable the connection between sensor 1 and the motor, reduce vibration or impact and make sensor 1 take place the risk of shifting. And, barrel 10 and installation panel 20 form stable chamber space that holds, guarantee the stability of holding the interior response subassembly 30 operation of intracavity, improved measuring accuracy. The mounting panel 20 is arranged on the outer side of the motor cylinder body, so that the mounting step of the sensor 1 can be simplified, and the mounting efficiency can be improved. The induction component 30 stretches out of the motor, can be conveniently connected with a signal receiving device, ensures the stability of signal transmission, and improves the efficiency of installation and maintenance.

As shown in fig. 3 and 4, in some embodiments of the present application, the sensor 1 further includes an elastic member 40, where the elastic member 40 is disposed in the accommodating cavity, and two ends of the elastic member 40 respectively abut against the sensing assembly 30 and the mounting panel 20. The elastic member 40 may be, for example, a cylindrical compression spring, a plate spring, an unequal roundness compression spring, or a disc spring, and may be provided according to the specific embodiment without limitation. The elastic member 40 and the sensing component 30 can be connected by gluing, welding, clamping or embedding.

Through setting up elastic component 40, exert pressure to sensing component 30, make sensing component 30 have the trend that stretches out to detecting hole 101 outward, improve sensing component 30 and wait to survey the laminating degree of part, improve measuring accuracy.

As shown in fig. 2, in some embodiments of the present application, the sensor 1 further includes a first seal 50, the first seal 50 being provided on a side of the mounting panel 20 facing the cylinder 10, the first seal 50 being provided along a circumferential direction of the cylinder 10. The first seal 50 is illustratively a sealant or a gasket or the like. By providing the first seal 50, the sealing performance in the circumferential direction of the cylinder 10 is improved, and the risk of liquid in the cylinder leaking out through the cylinder 10 in the circumferential direction is reduced.

In some embodiments of the present application, the mounting panel 20 is recessed toward one side of the cartridge 10 into a first sealing groove 201, the first sealing groove 201 being configured to receive at least a portion of the first seal 50. The above structure can realize the limit of the first sealing element 50 by arranging the first sealing groove 201, reduce the displacement of the first sealing element 50 in the running process of the motor, and improve the sealing performance.

As shown in fig. 1, in some embodiments of the present application, the sensor 1 includes a second seal 60, the second seal 60 being provided on a side of the cylinder 10 facing away from the receiving cavity, the second seal 60 surrounding an outer periphery of the cylinder 10, the second seal 60 being for sealing between the cylinder 10 and the cylinder. The second seal 60 is illustratively a seal ring. By providing the second seal 60, the sealing performance between the cylinder 10 and the motor is improved, and the risk of leakage of liquid in the cylinder through the gap between the cylinder 10 and the motor is reduced.

In some embodiments of the present application, a side surface of the cartridge 10 facing away from the receiving cavity is recessed to form a second sealing groove for receiving at least a portion of the second seal 60. The structure can limit the second sealing element 60 by arranging the second sealing groove, so that the displacement of the second sealing element 60 in the running process of the motor is reduced, and the sealing performance is improved.

As shown in fig. 2-4, in some embodiments of the present application, the sensing assembly 30 includes a guide 301, a sensing element 302, and a connection harness 303. The guide member 301 has a through hole, the guide member 301 is disposed in the accommodating cavity, the through hole is communicated with the detection hole 101, the sensing assembly 30 is convenient to extend from the through hole to the detection hole 101, the circumferential direction of the guide member 301 protrudes outwards to form a limiting portion 304, and one end of the elastic member 40 abuts against the limiting portion 304. At least part of the detection element 302 is disposed in the through hole, and the detection element 302 is connected to the guide 301. One end of the connection harness 303 is connected to the detection element 302, and the other end of the connection harness 303 passes through the mounting panel 20 and extends to a side of the mounting panel 20 facing away from the accommodation chamber, the connection harness 303 being for connection with a signal receiving device.

Illustratively, the guide 301 is a cylindrical structure, the through-hole and the probe hole 101 may be coaxially disposed, and the aperture of the through-hole is substantially equal to that of the probe hole 101. In some alternative embodiments, the guide 301 is provided on the side of the cartridge 10 facing away from the receiving chamber. The first end of the sensing assembly 30 passes through the sensing hole 101 and then through the through hole of the guide 301. The guide 301 may be made of metal, organic material, or ceramic. The ends of the sensing assembly 30 may be fixedly coupled to the guide 301 by bonding, welding, or the like. The detection element 302 may be, for example, a NTC (Negative Temperature Coefficient) thermistor capable of converting a temperature change into an electrical signal and outputting it through the connection harness 303.

In the above technical solution, by arranging the guide member 301 and arranging the through hole in the guide member 301 for accommodating the detection element 302, the setting limiting portion 304 is abutted with the elastic member 40, so that the detection element 302 is directly connected with the elastic member 40, and the response sensitivity and measurement accuracy of the detection element 302 are improved. Further, a connecting wire harness 303 is arranged to transmit the temperature signal measured by the detecting element 302 to the outside of the motor, so that the real-time monitoring of the temperature of the motor is realized.

As shown in fig. 5, in some embodiments of the present application, a portion of the guide 301 facing the detection hole 101 protrudes to form a detection portion 305, the detection portion 305 passes through the detection hole 101 and protrudes from a surface of the barrel 10 on a side facing away from the accommodating cavity, and the through hole of the guide 301 penetrates the detection portion 305, and the detection element 302 is located in the detection portion 305. In the above-described configuration, the distance between the detection element 302 and the component to be measured is shortened by providing the detection portion 305, and the sensitivity and accuracy of measurement by the detection element 302 are improved.

In some embodiments of the present application, the sensing assembly 30 further includes a middle member 306, where the middle member 306 is disposed at an end of the detecting element 302 away from the connection harness 303, and the middle member 306 is configured to cooperate with the portion to be detected. By arranging the middleware, the middleware 306 is directly contacted with the component to be detected, so that friction loss caused by the fact that the detection element 302 is directly contacted with the component to be detected can be reduced, the measurement sensitivity and accuracy of the detection element 302 are ensured, and meanwhile, the service life of the detection element 302 is prolonged.

In some embodiments of the present application, the sensing assembly 30 further includes a sealing sleeve 307, the sealing sleeve 307 being disposed between the connection harness 303 and the mounting panel 20. By providing the sealing sleeve 307, the tightness of the connection between the connection harness 303 and the mounting panel 20 is improved, reducing the risk of leakage of liquid in the motor cylinder from the mounting panel 20.

In some embodiments of the present application, the detection element 302 is a temperature detection element, a vibration detection element, a displacement detection element, an angle detection element, or a speed detection element. The detection element can detect the performances of the motor in all aspects, and the detection element is arranged, so that the monitoring efficiency of the running condition of the motor is improved, and the running stability of the motor is improved.

As shown in fig. 5, in some embodiments of the present application, the cartridge 10 is provided with a diversion aperture 102 therethrough, the diversion aperture 102 being in communication with the receiving cavity. In the above technical solution, by setting the diversion hole 102 to communicate the liquid in the accommodating cavity with the liquid in the cylinder body of the motor, the pressure balance between the inside and the outside of the accommodating cavity is realized, and the pressure/pressure of the outside of the cylinder body 10 is prevented from being too large, so that the guide member 301 can be pushed to retract into the accommodating cavity against the pressure of the elastic member 40, the stability of the sensor structure is ensured, and the accuracy of temperature measurement is improved.

As shown in fig. 5 to 7, in some embodiments of the present application, the mounting panel 20 protrudes outward in the circumferential direction to form a mounting portion 202, the mounting portion 202 is provided with a fixing hole 203, and the sensor 1 further includes a mounting member 70, the mounting member 70 passing through the fixing hole 203, the mounting member 70 for connecting the mounting panel 20 with the cylinder. By way of example, the mounting member 70 may be a screw, bolt, rivet, or the like. The number of the mounting portions 202 may be one or more, and at least one fixing hole 203 is provided in each mounting portion 202.

The structure can improve the structural strength and stability of the connection between the mounting panel 20 and the motor, and improve the stability of the mounting of the inductor.

The embodiment of the application also provides a motor, which comprises the sensor 1 and a cylinder body in the embodiment, wherein the cylinder body is provided with a mounting hole. The cylinder of the sensor 1 is disposed in the mounting hole, a first end of the detecting element 302 of the sensor 1 passes through the mounting hole and penetrates into the cylinder, and a second end of the sensing component 302 of the sensor passes through the mounting hole and extends out of the cylinder to be connected with the signal receiving device.

The motor of the embodiment of the application comprises the sensor 1 in any embodiment, and the sensor 1 is arranged in the mounting hole of the motor, so that stable connection can be formed between the sensor 1 and the motor, and the risk of displacement of the sensor 1 caused by vibration or impact is reduced. And, barrel 10 and installation panel 20 form stable chamber space that holds, guarantee the stability of holding the interior response subassembly 30 operation of intracavity, improved measuring accuracy. The mounting panel 20 is arranged on the outer side of the motor cylinder body, so that the mounting step of the sensor 1 can be simplified, and the mounting efficiency can be improved. The induction component 30 stretches out of the motor, can be conveniently connected with a signal receiving device, ensures the stability of signal transmission, and improves the efficiency of installation and maintenance.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the embodiments, and are intended to be included within the scope of the claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (14)

1. A sensor (1), characterized in that the sensor (1) comprises:

the cylinder body (10) is provided with an opening, and a detection hole (101) is further formed in the cylinder body (10);

the mounting panel (20) is covered on the opening, and the mounting panel (20) and the cylinder (10) are jointly enclosed to form a containing cavity;

the sensing assembly (30) is at least partially arranged in the accommodating cavity, a first end of the sensing assembly (30) penetrates through the detection hole (101) and protrudes out of the outer surface of the cylinder body (10), the first end is used for being matched with a part to be detected to detect the part to be detected, a second end of the sensing assembly (30) penetrates through the mounting panel (20) and extends to one side, away from the accommodating cavity, of the mounting panel (20), and the second end is used for being connected with the signal receiving device.

2. The sensor (1) according to claim 1, wherein the sensor (1) further comprises an elastic member (40), the elastic member (40) is disposed in the accommodating cavity, and two ends of the elastic member (40) are respectively abutted with the sensing assembly (30) and the mounting panel (20).

3. The sensor (1) according to claim 2, wherein the sensor (1) further comprises a first seal (50), the first seal (50) being provided at a side of the mounting panel (20) facing the cylinder (10), the first seal (50) being provided along a circumferential direction of the cylinder (10).

4. A sensor (1) according to claim 3, wherein a side of the mounting panel (20) facing the cartridge (10) is concave into a first sealing groove (201), the first sealing groove (201) being adapted to receive at least part of the first seal (50).

5. The sensor (1) according to claim 2, characterized in that the sensor (1) comprises a second seal (60), the second seal (60) being provided on a side of the cylinder (10) facing away from the receiving cavity, the second seal (60) surrounding the outer circumference of the cylinder (10).

6. The sensor (1) according to claim 5, characterized in that a side surface of the cylinder (10) facing away from the receiving cavity is recessed to form a second sealing groove for receiving at least part of the second seal (60).

7. The sensor (1) according to any one of claims 2-6, wherein the sensing assembly (30) comprises:

the guide piece (301) is provided with a through hole, the guide piece (301) is arranged in the accommodating cavity, the through hole is communicated with the detection hole (101), the circumference of the guide piece (301) protrudes outwards to form a limiting part (304), one end of the elastic piece (40) is abutted against the limiting part (304),

-a detection element (302) at least partially arranged in said through hole, and said detection element (302) is connected to said guide (301);

and one end of the connecting wire harness (303) is connected with the detection element (302), the other end of the connecting wire harness passes through the mounting panel (20) and extends to one side of the mounting panel (20) away from the accommodating cavity, and the connecting wire harness (303) is used for being connected with the signal receiving device.

8. Sensor (1) according to claim 7, characterized in that the part of the guide (301) facing the detection aperture (101) protrudes to form a detection portion (305), the detection portion (305) passing through the detection aperture (101) and protruding from the surface of the cylinder (10) facing away from the receiving chamber side, the detection element (302) being located at the detection portion (305).

9. The sensor (1) according to claim 7, wherein the sensing assembly (30) further comprises an intermediate member (306), the intermediate member (306) being provided at an end of the detecting element (302) remote from the connection harness (303), the intermediate member (306) being adapted to cooperate with the site to be measured.

10. The sensor (1) according to claim 7, wherein the sensing assembly (30) further comprises a sealing sleeve (307), the sealing sleeve (307) being provided between the connection harness (303) and the mounting panel (20).

11. The sensor (1) according to claim 7, wherein the detection element (302) is a temperature detection element, a vibration detection element, a displacement detection element, an angle detection element or a velocity detection element.

12. The sensor (1) according to any one of claims 1-6, characterized in that the cylinder (10) is provided with a flow guiding hole (102) therethrough, the flow guiding hole (102) being in communication with the receiving cavity.

13. The sensor (1) according to any one of claims 1-6, wherein the mounting panel (20) protrudes circumferentially outwards forming a mounting portion (202), the mounting portion (202) being provided with a fixation hole (203), the sensor (1) further comprising a mounting (70), the mounting (70) passing through the fixation hole (203).

14. An electric machine, comprising:

the sensor (1) according to any one of claims 1-13;

a cylinder body is provided with a mounting hole,

the cylinder body of the sensor (1) is arranged in the mounting hole, the mounting panel of the sensor (1) is at least partially positioned on the outer side of the cylinder body, the first end of the sensing component (30) of the sensor (1) penetrates through the mounting hole and stretches into the cylinder body, and the second end of the sensing component (30) of the sensor (1) penetrates through the mounting hole and extends out of the cylinder body to be connected with the signal receiving device.