CN115585903A

CN115585903A - Temperature detecting device

Info

Publication number: CN115585903A
Application number: CN202211216456.2A
Authority: CN
Inventors: 黄华; 赵将军; 刘宝文
Original assignee: Shenzhen Huyi Technology Co Ltd
Current assignee: Shenzhen Huyi Technology Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-01-10

Abstract

A temperature detecting device has a detecting member having a first magnetic body and a second magnetic body having opposite magnetic pole directions. The detection assembly is rotatably connected to the device main body, and the first magnetic body and the second magnetic body are arranged around a rotation axis of the detection assembly. In the moving process of the first magnetic body and the second magnetic body, the magnetic field direction detection unit of the device main body sends out a first signal and a second signal based on the detection result of the magnetic field signals of the first magnetic body and the second magnetic body, and controls the temperature detection device to be started and shut down. When the magnetic field direction detection unit sends out the first signal and the second signal, the detection of the magnetic field directions of the first magnetic body and the second magnetic body is added, and the condition of false triggering is reduced. This first magnetic substance and second magnetic substance have enlarged magnetic substance at radial plane's area and whole volume around the axis of rotation setting for the whole outside magnetic attraction of the device is bigger, can be with installing magnetic adsorption on other article.

Description

Temperature detecting device

Technical Field

The invention relates to a temperature detection device, in particular to a startup and shutdown structure of the temperature detection device.

Background

With the advancement of science and technology and the improvement of taste and nutrition requirements of food materials, people expect more accurate control of temperature elements in the cooking process, and in some embodiments, more accurate control of the temperature of the food materials, the temperature of water for heating the food materials, and the like, and thus a temperature detection device applied to food material cooking comes into force.

In these temperature detecting devices, in order to more conveniently turn on and off the device, in some solutions, a small-sized magnet is usually disposed on one side of the rotating base, and a hall sensor is disposed near the moving track of the magnet, and the hall sensor is used for detecting the magnetic induction intensity of the magnet. The rotary base drives the magnet to move so as to change the magnetic induction intensity, the Hall sensor is triggered, and the Hall sensor sends a starting signal and a shutdown signal to the control circuit board. However, this structure still has drawbacks and can be further optimized.

Disclosure of Invention

The invention provides a temperature detection device, which is used for showing a novel structure for controlling the temperature detection device to be turned on and off through a magnetic body.

In view of the above object, an embodiment of the present application provides a temperature detection device, including:

the detection assembly is provided with a temperature detection unit for temperature detection and a magnetic body, the magnetic body is at least divided into a first magnetic body and a second magnetic body, and the magnetic pole directions of the first magnetic body and the second magnetic body are opposite;

the device body is provided with a control unit and a magnetic field direction detection unit, the magnetic field direction detection unit is in signal connection with the control unit, and the temperature detection unit is in signal connection with the control unit;

the detection assembly is rotatably connected to the device main body, and the first magnetic body and the second magnetic body are arranged around a rotation axis of the detection assembly;

the magnetic field direction detection unit is arranged on one side of the motion track of the magnetic body and used for detecting magnetic field signals of the first magnetic body and the second magnetic body, and the magnetic field signals at least comprise magnetic field directions; in the moving process of the first magnetic body and the second magnetic body, the magnetic field direction detection unit sends out a first signal and a second signal based on the detection result of the magnetic field signals of the first magnetic body and the second magnetic body;

the control unit controls the temperature detection device to be powered on according to one of the first signal and the second signal, and controls the temperature detection device to be powered off according to the other signal.

In view of the above object, an embodiment of the present application provides a temperature detection device, which is characterized by comprising:

a detection unit having a temperature detection unit for temperature detection, a first detection region and a second detection region, at least one of the first detection region and the second detection region being provided with a magnetic body so that the first detection region and the second detection region have different magnetic field directions or different magnetic field existing states;

the detection assembly is movably connected to the device main body; the magnetic field direction detection unit is arranged on one side of the motion tracks of the first detection area and the second detection area and is used for detecting magnetic field signals of the first detection area and/or the second detection area, and the magnetic field signals at least comprise magnetic field directions;

in a process of moving the first detection region and the second detection region, the magnetic field direction detection unit sends a first signal and a second signal based on detection results of the first detection region and the second detection region, and the control unit controls the temperature detection device to be powered on according to one of the first signal and the second signal and controls the temperature detection device to be powered off according to the other one of the first signal and the second signal.

In view of the above, an embodiment of the present application provides a temperature detecting device, including:

a detection assembly having a temperature detection unit for temperature detection;

the device body is provided with a control unit and a magnetic field intensity detection unit, the magnetic field intensity detection unit is in signal connection with the control unit, and the temperature detection unit is in signal connection with the control unit;

the detection assembly is rotatably connected to the device body and provided with a first detection area and a second detection area which are distributed around a rotation axis of the detection assembly, and the third magnetic body is arranged in one of the first detection area and the second detection area, so that the first detection area and the second detection area are different in magnetic induction intensity or magnetic field existence state; the magnetic induction intensity detection unit is arranged on one side of the motion track of the third magnetic body and is used for detecting a second detection area of the magnetic field signals of the first detection area and the second detection area;

when the magnetic field intensity detection unit detects that the magnetic field intensity of the third magnetic body meets a first set range, a first signal is sent out;

when the magnetic field intensity detection unit detects that the magnetic field intensity of the third magnetic body meets a second set range, a second signal is sent out, and the second set range is smaller than the first set range;

According to some embodiments of the temperature detecting device, the detecting member has a magnetic body, and the magnetic body is divided into at least a first magnetic body and a second magnetic body with opposite magnetic pole directions. The detection assembly is rotatably connected to the device main body, and the first magnetic body and the second magnetic body are arranged around a rotation axis of the detection assembly. In the moving process of the first magnetic body and the second magnetic body, the magnetic field direction detection unit of the device main body sends a first signal and a second signal based on detection results of magnetic field signals of the first magnetic body and the second magnetic body, and the control unit controls the temperature detection device to be started or stopped according to the first signal and the second signal. When the magnetic field direction detection unit sends the first signal and the second signal, the magnetic field direction detection unit detects the magnetic field directions of the first magnetic body and the second magnetic body, so that the condition of false triggering is reduced, and the on-off of the device is more reliable. Moreover, the device is provided with at least a first magnetic body and a second magnetic body which are arranged around the rotation axis, the area of the magnetic bodies in the radial plane and the whole volume are enlarged, the overall outward magnetic attraction of the device is larger, the device can be magnetically adsorbed on other articles, and the temperature detection device is easier to store and take.

The temperature detecting device according to some embodiments includes a detecting element having a first detecting region and a second detecting region, at least one of the first detecting region and the second detecting region is provided with a magnetic body, and the first detecting region and the second detecting region have different magnetic field directions or different magnetic field existing states. The detection assembly is movably (but not limited to rotatably) coupled to the device body. The magnetic field direction detection unit is arranged on one side of the motion tracks of the first detection area and the second detection area, and sends a first signal and a second signal based on the detection results of the first detection area and the second detection area, and the control unit controls the temperature detection device to be started or shut down according to the first signal and the second signal. When the magnetic field direction detection unit sends the first signal and the second signal, the magnetic field direction detection unit detects the magnetic field directions of the first magnetic body and the second magnetic body, so that the condition of false triggering is reduced, and the on-off of the device is more reliable.

According to some embodiments of the temperature detecting device, the detecting member has a magnetic body. The detection assembly is rotatably connected to the device main body, the magnetic body is provided with a first detection area and a second detection area, and the second detection area is free of a magnetic field or has magnetic induction intensity smaller than that of the first detection area. When the magnetic induction intensity detection unit detects that the magnetic induction intensity of the magnetic body meets a first set range, a first signal is sent out; when the magnetic induction intensity detection unit detects that the magnetic induction intensity of the magnetic body meets a second set range, a second signal is sent out, and the control unit controls the startup and shutdown according to the first signal and the second signal. In this embodiment, the first detection region and the second detection region are distributed around the rotation axis, so when the magnetic body rotates, the range that the first detection region and the second detection region can be detected by the magnetic induction detection unit is longer, the detection region is larger, the detection region is more easily detected by the magnetic induction detection unit, and the reliability of the on/off operation is improved. Moreover, this magnetic substance has enlarged the area and the whole volume of magnetic substance at radial plane around the axis of rotation setting for the whole outside magnetic attraction of the device is bigger, can adsorb device magnetism on other article, makes temperature-detecting device accomodate and take more easily.

Drawings

FIG. 1 is a schematic diagram of a temperature detection device with a detection assembly in a closed position according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a temperature detection device with a detection assembly in a fully open position according to an embodiment of the present disclosure;

FIG. 3 is an exploded view of a probe assembly and a device body according to an embodiment of the present disclosure;

FIG. 4 is an exploded view of a temperature sensing device according to an embodiment of the present application;

FIG. 5 is a schematic view of a magnetic body in a closed position according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of a magnetic body in an open position according to an embodiment of the present disclosure;

FIG. 7 is a schematic view of a magnetic body in a fully open position according to an embodiment of the present application;

FIG. 8 is a schematic view of a magnetic body in an embodiment of the present application when the magnetic body is turned off;

FIGS. 9 and 10 are schematic views of a magnetic body in a closed position according to an embodiment of the present application;

FIGS. 11 and 12 are schematic views of the embodiment of FIGS. 9 and 10 with the magnetic body in a fully open position;

FIGS. 13 and 14 are schematic views of a magnetic body in a closed position according to an embodiment of the present application;

FIGS. 15 and 16 are schematic views of the embodiment of FIGS. 13 and 14 with the magnetic body in a fully open position;

FIG. 17 is a schematic view of a magnetic body in a closed position according to another embodiment of the present application;

FIG. 18 is a schematic view of a magnetic body in an open position according to another embodiment of the present application;

FIG. 19 is a schematic view of another embodiment of the present application with the magnetic body in a fully open position;

FIG. 20 is a schematic view of a magnetic body in another embodiment of the present application when the magnetic body is turned off;

FIGS. 21 and 22 are schematic views of another embodiment of the present application with the magnetic body in the closed position;

FIGS. 23 and 24 are schematic views of the embodiment of FIGS. 21 and 22 with the magnetic body in a fully open position;

FIG. 25 is a schematic longitudinal cross-sectional view of a temperature sensing device with a sensing assembly in a closed position according to an embodiment of the present application.

Detailed Description

In order to be able to detect the temperature of a food material or a food material processing medium (such as water) during cooking, the present application provides a temperature detection device. For convenience of use, the temperature detection device 1 may be of a hand-held type structure, as shown in fig. 1 and 2. Of course, in other embodiments, the temperature detecting device 1 may have a desktop structure or other structures.

Referring to fig. 1-4, in some embodiments, the temperature detection device 1 includes a detection assembly 100 and a device body 200.

The detection assembly 100 is movably connected to the device body 200, and a user can change the positions of the detection assembly 100 and the device body 200 to adapt to different application scenarios. In some embodiments, in the embodiment shown in fig. 1 and 2, the detection assembly 100 is rotatably connected to the device body 200, and the user can rotate the detection assembly 100 to change its position relative to the device body 200 to stop the detection assembly 100 at any angle within the maximum opening angle range, so as to facilitate different use requirements. Of course, in other embodiments, the detecting component 100 can be connected to the main body 200 in other movable manners, and in some embodiments, the detecting component 100 can also be moved in a plane, and the moving path can be a straight line, a curved line, a broken line, an irregular route, or the like. The plane can be a horizontal plane, a vertical plane, or other non-horizontal or vertical plane. In addition, the probe assembly 100 may be movable relative to the device body 200 in other forms other than rotational and translational movement.

The probe assembly 100 has a probe 121 and a temperature detecting unit 123 for temperature detection, for example, the temperature detecting unit 123 may be but is not limited to a thermocouple, and the temperature detecting unit 123 may also adopt other devices that can be used for temperature detection. The temperature sensing unit 123 is disposed in the probe 121 or exposed from the probe 121.

Referring to fig. 4, the main body 200 generally has a control unit 210, and the control unit 210 may be a circuit board having a control circuit, or may be other structures or circuits or a combination of both that can perform a control function. The temperature detecting unit 123 is in signal connection with the control unit 210, a signal detected by the temperature detecting unit 123 is transmitted to the control unit 210, and the control unit 210 processes the signal to obtain a temperature detecting result, so as to detect the temperature.

For convenience of use, in some embodiments, the control unit 210 is triggered to turn on and off by moving the detection assembly 100 while changing the position of the magnetic body, and the magnetic field signal of the magnetic body for the on and off triggering may be affected by other magnetic materials or other magnetic bodies.

In order to improve the accuracy and reliability of the power on/off operation, referring to fig. 5-16, in some embodiments, the detection assembly 100 further has a first detection region 101 and a second detection region 102. The first detection region 101, the second detection region 102 and the temperature detection unit 123 all move together with the detection assembly 100. At least one of the first detection region 101 and the second detection region 102 is provided with a magnetic body, so that the first detection region 101 and the second detection region 102 form different magnetic field signals, the magnetic field signals at least comprise a magnetic field existing state and a magnetic field direction, and the magnetic field signals can also comprise parameters related to a magnetic field, such as magnetic induction intensity and the like. In some embodiments, the first detection zone 101 and the second detection zone 102 have different magnetic field directions or different magnetic field presence states. The magnetic field existing state refers to whether or not a magnetic field is present. The first detection zone 101 and the second detection zone 102 differ in the presence of magnetic fields, i.e. one of the first detection zone 101 and the second detection zone 102 is present with a magnetic field and the other is absent with a magnetic field. For detecting magnetic field signals, in particular the magnetic field direction in the magnetic field signals, in the first detection zone 101 and the second detection zone 102, the device body 200 has a magnetic field direction detection unit 202, the magnetic field direction detection unit 202 being in signal connection with the control unit 210 for transmitting the detected signals to the control unit 210. The first detection region 101 and the second detection region 102 refer to two different regions on the detection assembly 100, which can be detected by the magnetic field direction detection unit 202 during the movement process, and form different trigger signals for the magnetic field direction detection unit 202, and trigger the magnetic field direction detection unit 202 to send out different signals, and the selection of the specific region range can be flexibly defined according to specific requirements.

The magnetic field direction detection unit 202 is arranged at one side of the motion trajectory of the first detection region 101 and the second detection region 102 for detecting the magnetic field signal of the first detection region 101 and/or the second detection region 102. The magnetic body 110 may be a magnet or other structures capable of generating magnetism. In some embodiments, the magnetic body 110 may be a permanent magnet (e.g., a permanent magnet), or the magnetic body 110 may be an electromagnet (e.g., an energized coil) or the like that can generate magnetism when energized or in other specific states.

When the first detection region 101 and the second detection region 102 move into the detection range of the magnetic field direction detection unit 202, respectively, different magnetic field signals are fed back to the magnetic field direction detection unit 202, in some embodiments, the magnetic field existence state is different, the magnetic field direction is different, and/or the magnetic induction intensity is different, and the magnetic field direction detection unit 202 can identify the different magnetic field signals and send out the first signal and the second signal based on the detection results of the first detection region 101 and the second detection region 102.

In some embodiments, when the magnetic field direction detection unit 202 detects the magnetic field signal of the first detection region 101 and the magnetic induction intensity of the first detection region 101 satisfies the first setting range, a first signal is emitted; when the magnetic field direction detection unit 202 detects the magnetic field signal of the second detection region 102 and the magnetic induction intensity of the second detection region 102 satisfies a second set range, a second signal is emitted.

The first signal and the second signal are signals capable of representing different meanings, and in some embodiments one of the first signal and the second signal is low and the other is high. The control unit 210 controls the temperature detecting device 1 to be powered on according to one of the first signal and the second signal, and controls the temperature detecting device 1 to be powered off according to the other signal. In some embodiments, the first signal is used to trigger the control unit 210 to control the temperature detecting device 1 to be powered on, and the second signal is used to trigger the control unit 210 to control the temperature detecting device 1 to be powered off. In other embodiments, the first signal is used to trigger the control unit 210 to control the temperature detecting device 1 to be turned off, and the second signal is used to trigger the control unit 210 to control the temperature detecting device 1 to be turned on. The specific control manner can be flexibly defined according to the specific structure and requirements of the temperature detection device 1.

With the movement of the detection assembly 100, when the magnetic body 110 triggers the magnetic field direction detection unit 202 to send out a first signal or a second signal for controlling the power on, the detection assembly 100 is located at the power on position; correspondingly, when the magnetic body 110 triggers the magnetic field direction detection unit 202 to send out the second signal or the first signal for controlling the shutdown, the detection assembly 100 is located at the shutdown position. Of course, when the detecting component 100 is located at the power-on position, each component (such as the magnetic body 110, the probe 121, etc.) in the detecting component 100 is also defined as being located at the power-on position, and similarly, when the detecting component 100 is located at the power-off position, each component (such as the magnetic body 110, the probe 121, etc.) in the detecting component 100 is also defined as being located at the power-off position. The components in the probe assembly 100 may move synchronously or asynchronously, for example, when the magnetic body 110 and the probe 121 are both located at the off-position, the angles or distances moved by the magnetic body 110 and the probe 121 may be the same or different. Similarly, when the magnetic body 110 and the probe 121 are both located at the start position or at the same position (such as the closed position and the fully open position hereinafter), the angles or distances moved by the magnetic body 110 and the probe 121 may be the same or different. When the angle or distance of movement of the magnetic body 110 and the probe 121 are different, they may be varied in multiples or irregularly.

This combination of turning on and off the device and detecting the position of movement of the assembly 100 simplifies the user's operation structure without requiring the user to perform additional turning on and off operations. When the user opens the detection assembly 100, the on-off operation can be completed, and the convenience of the use function is greatly improved. Also, the magnetic field direction detecting unit 202 may detect at least the magnetic field direction of the magnetic body 110, and the magnetic field direction detecting unit 202 may be, but is not limited to, a tunnel magnetoresistive sensor (TMR) in some embodiments. When the magnetic field direction detection unit 202 sends out the first signal and the second signal, the detection of the magnetic field directions of the first detection region 101 and the second detection region 102 is added, so that the situation of false triggering is reduced, and the on/off of the device is more reliable. In some embodiments, even if there are other magnetic conductive materials or other positions of the magnetic body 110 detected by the magnetic field direction detection unit 202, the magnetic field direction detection unit 202 can obtain a more accurate on/off signal by detecting the magnetic field direction.

Referring to fig. 5-16, in some embodiments, the magnetic body 110 is at least divided into a first magnetic body 111 and a second magnetic body 112, in the embodiments, the space occupied by the first magnetic body 111 can be regarded as the first detection region 101, and the space occupied by the second magnetic body 112 can be regarded as the second detection region 102. The first magnetic body 111 and the second magnetic body 112 can be different regions of the same magnetic member, and in some embodiments, two regions are divided from one magnetic body 110 to perform different directions of magnetization, so as to form the first magnetic body 111 and the second magnetic body 112 with different magnetic poles. Alternatively, the first magnetic body 111 and the second magnetic body 112 are two independent magnetic members, i.e. the first magnetic body 111 and the second magnetic body 112 are two magnetic members, such as two separate magnets, which are manufactured independently.

The first and second

magnetic bodies

111 and 112 have different magnetic pole directions (i.e., directions of N and S poles), and in some embodiments, the first and second

magnetic bodies

111 and 112 have different magnetizing directions, so that when the first and second

magnetic bodies

111 and 112 are mounted in the detection assembly 100, the N and S poles thereof have different directions, so that the magnetic field direction detection unit 202 can distinguish the first and second

magnetic bodies

111 and 112 according to the magnetic field direction.

Of course, in order to form a significant difference in magnetic field direction, referring to fig. 5 to 16, in some embodiments, the magnetic pole directions of the first magnetic body 111 and the second magnetic body 112 may be completely opposite, that is, the magnetizing directions of the first magnetic body 111 and the second magnetic body 112 are opposite, and the N pole and the S pole of the first magnetic body are just completely opposite, so that the magnetic field direction detecting unit 202 can distinguish the first magnetic body 111 and the second magnetic body 112 more accurately according to the magnetic field direction.

Referring to fig. 5 to 16, although the first magnetic body 111 is located at the left side and the second magnetic body 112 is located at the right side in the illustrated embodiment, an upward end of the first magnetic body 111 is an N pole and an upward end of the second magnetic body 112 is an S pole. In other embodiments, the positions and magnetizing directions of the first magnetic body 111 and the second magnetic body 112 can be interchanged.

When the magnetic field directions of the first magnetic body 111 and the second magnetic body 112 are different, the magnetic field direction detection unit 202 sends out a first signal when the magnetic field direction detection unit 202 detects the magnetic field signal of the first magnetic body 111 and the magnetic induction intensity of the first magnetic body 111 detected satisfies a first set range. When the magnetic field direction detection unit 202 detects the magnetic field signal of the second magnetic body 112 and the magnetic induction intensity of the second magnetic body 112 satisfies the second setting range, the magnetic field direction detection unit 202 sends out a second signal.

Wherein the first setting range and the second setting range generally depend on the setting of the magnetic field direction detection unit 202 itself, and the first setting range and the second setting range are different between the magnetic field direction detection units 202 of different principles or specifications. In one embodiment, the magnetic field direction detecting unit 202 is a tunnel magnetoresistive sensor (TMR), and the reference value of the first setting range of the magnetic field direction detecting unit 202 is B _OP The B is _OP Is right, itThe gauss value is 5Gs or 17Gs, that is, BOP is +5Gs or +17Gs, and when the detected magnetic induction of the first magnetic body 111 is greater than or equal to +5Gs or +17Gs, such as the detected magnetic induction of the first magnetic body 111 is +6Gs or +18Gs, that means the first setting range is satisfied, the magnetic field direction detecting unit 202 sends out the first signal. The reference value of the second setting range is BRP, and its gaussian value is also 5Gs or 17Gs, i.e., BRP is-5 Gs or-17 Gs, and when the detected magnetic induction of the second magnetic body 112 is less than or equal to-5 Gs or-17 Gs, e.g., the detected magnetic induction of the second magnetic body 112 is-6 Gs or-18 Gs, i.e., representing that the second setting range is satisfied, the magnetic field direction detecting unit 202 sends out the second signal. When the detected magnetic induction is greater than the BOP or less than the BRP, the magnetic induction change does not affect the triggering of the magnetic field direction detection unit 202 until the next triggering. Wherein the "+" and "-" represent B _OP And B _RP The corresponding magnetic field directions are different.

Wherein, except for the direction, B is different _OP And B _RP May be equal or different. The B is _OP And B _RP The smaller the gaussian value of (a), the higher the sensitivity. Generally, when the magnetic induction to be detected is greater than B _OP Then, a low level is outputted, and the temperature detection device 1 is started and is smaller than B _RP At that time, a high level is output and the temperature detection device 1 is turned off. Of course, it is understood that, by changing the control logic, in some embodiments, when the high level is output, the temperature detection device 1 is powered on, and when the low level is output, the temperature detection device 1 is powered off.

Compared with the scheme of controlling the startup and shutdown by separately comparing and detecting the magnitude of the magnetic induction intensity, when the judgment of the magnetic field direction is added, the B _OP And B _RP The gaussian value of (c) is preferably smaller, making the magnetic field direction detection unit 202 more sensitive. B is _OP And B _RP The smaller the gauss value of (B), the smaller the difference between the motions of the first magnetic member 111 and the second magnetic member 112 for triggering the power-on and power-off operations, and in some embodiments, when B is the rotational connection of the detection member 100 to the device body 200 _OP Is +5 and B _RP At-5, the detection assembly 100 may be turned on by more than 20 degrees from the initial positionThe probe assembly 100 provides a greater effective angle of use. Moreover, after the judgment of the magnetic field direction is added, the startup and shutdown can be triggered more accurately and reliably, and the startup and shutdown can be controlled accurately and reliably even under the condition that the peripheral magnetic conduction materials and other magnetic bodies 110 have magnetic field intensity or magnetic induction intensity.

With continued reference to fig. 3-16, in some embodiments, the probe assembly 100 is rotatably connected to the device body 200, and the first magnetic body 111 and the second magnetic body 112 are disposed around the rotation axis a1 of the probe assembly 100. In these embodiments, the first and second

magnetic bodies

111 and 112 move around the rotation axis a1 as the detection assembly 100 rotates. The magnetic field direction detecting unit 202 is disposed at one side of the rotation tracks of the first and second

magnetic bodies

111 and 112, and is used for detecting the magnetic field signals of the first and second

magnetic bodies

111 and 112.

Of course, in other embodiments, the first magnetic body 111 and the second magnetic body 112 may move in other manners with respect to the apparatus main body 200, such as the above-mentioned translation manner, and the magnetic field direction detection unit 202 is provided on one side of the translation path of the first magnetic body 111 and the second magnetic body 112.

When the first magnetic body 111 and the second magnetic body 112 are adopted, the device is at least provided with the first magnetic body 111 and the second magnetic body 112, the area and the whole volume of the magnetic body 110 are enlarged, the outward magnetic attraction of the whole device is larger, the device can be magnetically adsorbed on other objects, and the temperature detection device 1 is easier to store and take.

In particular, when the first and second

magnetic bodies

111 and 112 are disposed around the rotation axis a1, the entire magnetic body 110 increases in radial area and overall volume. Although the magnetic field directions are different from each other, the first magnetic body 111 and the second magnetic body 112 can both adsorb metal materials in the outward direction along the rotation axis, so that the device can be better magnetically adsorbed on other articles, and the temperature detection device 1 can be more easily stored and taken.

Besides, in some embodiments, the magnetic body 110 may have only the first magnetic body 111, the space occupied by the first magnetic body 111 can be regarded as the first detection region 101, the first magnetic body 111 has a gap, the space occupied by the gap can be regarded as the second detection region 102, that is, the second detection region 102 has no magnetic body, besides the first detection region 101 has the first magnetic body 111, and the second detection region 102 has the second magnetic body 112. At this time, the triggering of the magnetic field direction detection unit 202 by the first detection region 101 and the second detection region 102 is mainly realized by the determination of the magnetic field direction of the first magnetic body 111 and the change of the magnetic induction intensity.

Specifically, when the magnetic field direction detection unit 202 detects the magnetic field signal of the first magnetic body 111 and the magnetic induction intensity of the magnetic body 110 satisfies the third setting range, the first signal is emitted; when the magnetic field direction detection unit 202 does not detect the magnetic field signal of the first magnetic body 111, or the magnetic field direction detection unit 202 detects the magnetic field signal of the first magnetic body 111 and the magnetic induction intensity of the first magnetic body 111 satisfies the fourth setting range, the second signal is sent out. Reference value B of the third setting range _OP The Gauss value of (1) is larger than the reference value B of the fourth setting range _RP The Gauss value of (A), when the detected magnetic induction intensity is greater than or equal to B _OP When the magnetic induction intensity is less than or equal to B, the third set range is satisfied _RP If so, the fourth setting range is satisfied. In these embodiments, although only the first magnetic body 111 acts on the magnetic field direction detection unit 202 in the process of triggering the magnetic field direction detection unit 202 to send out the first signal and the second signal, the reliability of the switching on and off operation can be still improved due to the increased references of the magnetic field directions, and the switching on and off operation can be accurately and reliably controlled even under the condition that the surrounding magnetic conductive material and the other magnetic bodies 110 have magnetic field strength or magnetic induction strength.

In other embodiments, the magnetic body 110 may be the second magnetic body 112. The magnetic body 110 may further have only a second magnetic body 112, the space occupied by the second magnetic body 112 can be regarded as the second detection region 102, the second magnetic body 112 has a gap, the space occupied by the gap can be regarded as the first detection region 101, i.e. the first detection region 101 has no magnetic body. At this time, the triggering of the magnetic field direction detection means 202 by the first detection region 101 and the second detection region 102 is mainly achieved by the magnetic field direction of the second magnetic substance 112 and the change in magnetic induction intensity.

Specifically, when the magnetic field direction detection unit 202 does not detect the magnetic field signal of the second magnetic body 112, or the magnetic field direction detection unit 202 detects the magnetic field signal of the second magnetic body 112 and the magnetic induction intensity of the second magnetic body 112 satisfies the third setting range, the first signal is emitted; when the magnetic field direction detection unit 202 detects the magnetic field signal of the second magnetic body 112 and the magnetic induction intensity of the second magnetic body 112 satisfies the fourth setting range, the second signal is emitted. Wherein the third setting range and the fourth setting range are defined as described above.

The first detection region 101 and the second detection region 102 are nonmagnetic, which means that no magnetic body is disposed in the corresponding detection region. The detection region not provided with the magnetic body may be a vacant region such as a notch which is not provided with any other non-magnetic member as long as the region does not have a structure capable of generating a magnetic field.

Further, when the detection assembly 100 moves (without limitation, rotates, translates or otherwise moves) relative to the device body 200, it has a closed position and a fully open position, as shown in fig. 1, when the detection assembly 100 is in the closed position, the detection assembly 100 is folded onto the device body 200; as shown in fig. 2, when the detection assembly 100 is in the fully open position, the detection assembly 100 is opened to the maximum position. Of course, when the detection assembly 100 is in the closed position, the various components (including the magnetic body 110) within the detection assembly 100 are also defined as being in the closed position, and similarly, when the detection assembly 100 is in the fully open position, the various components (including the magnetic body 110) within the detection assembly 100 are also defined as being in the fully open position. The power-on position is located on a movement track of the magnetic body 110 from the fully-opened position to the fully-closed position, and the power-off position is located on a movement track of the magnetic body 110 from the fully-opened position to the fully-closed position. That is, it can be understood that, in some embodiments, the detection assembly 100 (including the magnetic body 110) can trigger the device to turn on only when the detection assembly is opened from the closed position to the fully opened position, and can trigger the device to turn off only when the detection assembly is closed from the fully opened position to the closed position, so as to avoid the possibility of false turn-on or false turn-off.

To better describe the closed, off, on, and fully open positions, referring to fig. 5-8, variations of the positions are schematically illustrated in one embodiment. In order to more clearly show the relationship among the positions, fig. 5 to 8 use the magnetic body 110 as a reference to manufacture auxiliary schematic lines corresponding to the positions, wherein c1 is a closed position auxiliary schematic line on the magnetic body 110, c2 is an off position auxiliary schematic line on the magnetic body 110, c3 is an on position auxiliary schematic line on the magnetic body 110, and c4 is a fully open position auxiliary schematic line on the magnetic body 110. These schematic lines c1, c2, c3, and c4 are virtual reference lines taken on the magnetic body 110 to facilitate description of the moving position of the magnetic body 110.

Referring to fig. 5, when the magnetic body 110 moves clockwise from the open state to the closed position along the arrow, the auxiliary schematic line c1 corresponds to the magnetic field direction detecting unit 202, and the magnetic body 110 is located at the closed position. Referring to fig. 6, when the magnetic body 110 moves counterclockwise from the closed position to the open position auxiliary indicating line c3 corresponding to the magnetic field direction detecting unit 202 as indicated by an arrow, the magnetic body 110 is at the open position. Referring to fig. 7, when the magnetic body 110 moves counterclockwise from the open position to the fully open position as shown by the arrow, the auxiliary indication line c4 corresponds to the magnetic field direction detection unit 202, and the magnetic body 110 is located at the fully open position. Referring to fig. 8, when the magnetic body 110 moves clockwise from the open state to the closed position as indicated by an arrow, the auxiliary indicating line c2 corresponds to the magnetic field direction detecting unit 202, and the magnetic body 110 is located at the closed position.

The angle between the closed position and the fully open position is H, which determines the opening angle of the probe assembly 100 (including the magnetic body 110) with respect to the apparatus body 200, and in fig. 5 to 8 and 17 to 20, the angle H is 180 °, although the angle H may be set to > 180 ° or < 180 ° as necessary. The angle between the power-on position and the power-off position is a power-on angle C, and the angle between the power-on position and the power-off position is an angle D. Of course, while the illustrations of fig. 5-8 illustrate rotational movement of the detection assembly 100, in other embodiments, the rotational movement may be replaced by translational or other types of movement.

In some embodiments, the shutdown position and the close position may be overlapped, that is, when the detection assembly 100 (including the magnetic body 110) is located in the close position, the trigger device is triggered to shutdown, and the user only needs to move the detection assembly 100 (including the magnetic body 110) to the close position, which is convenient to operate.

However, considering machining errors and assembly errors, and possible structural deformation or improper closing of the probe assembly 100 by a user during the use function, it is impossible for the user to shut down the probe assembly 100 due to the errors when the user moves the probe assembly 100 to the closed position, or it is difficult for the user to precisely close the probe assembly 100 to the shut-down position. In this regard, in some embodiments, referring to fig. 5 and 8, a shutdown compensation angle a may be formed between the shutdown position and the closed position. That is, after the user moves the detection assembly 100 (including the magnetic body 110) to the shutdown position in the direction indicated by the arrow in fig. 8, the user can continue to move a certain angle until the detection assembly moves to the closed position shown in fig. 5, and the angle of the continued movement is the shutdown compensation angle a. This shutdown compensation angle a can compensate shutdown operation, even if the user moves detection subassembly 100 (including magnetic body 110) not in place when to the closed position, also can guarantee that detection subassembly 100 (including magnetic body 110) can shut down smoothly.

In order to form the shutdown compensation angle A, the angle between the power-on position and the shutdown position is an angle D, the power-on angle C is larger than the angle D, and the shutdown compensation angle A can be formed by excessive angles. The specific angle of the shutdown compensation angle a may be set according to actual requirements, so as to avoid the increase of the startup angle C caused by the setting of the shutdown compensation angle a, in some embodiments, the shutdown compensation angle a is less than or equal to 20 °.

In some embodiments, the opening position and the fully open position may also coincide or form an angle B. When the power-on position coincides with the fully-open position, the user must open the detection member 100 (including the magnetic body 110) to the fully-open position to start the temperature detection device 1, which enables temperature measurement in only one posture.

With continued reference to fig. 6 and 7, an angle B is formed between the open position and the fully open position in the illustrated embodiment. As shown in fig. 6, when the detecting assembly 100 (including the magnetic body 110) moves to the start position, the device is started, and thereafter, the detecting assembly 100 (including the magnetic body 110) can also continue to move to the fully open position, and within the range of the angle B, the detecting assembly 100 can stop performing the temperature test at any position. The angle B can be flexibly set according to actual requirements, and in some embodiments, the angle B is larger than or equal to 160 degrees.

The angle D is a return difference angle formed according to a difference between the first setting range and the second setting range of the magnetic field direction detection unit 202. In some embodiments, the angle D is less than or equal to 20 degrees, so that a suitable return difference angle is obtained, which ensures that the angle B of the detection assembly 100 can be larger.

Further, in order to save space while providing a sufficient magnetic field range for facilitating detection by the magnetic field direction detection unit 202 and increasing the magnetic force of the device to attract the external metal material, in one embodiment, referring to fig. 5-8 and fig. 9 and 13, the first magnetic body 111 is disposed around the circumference of the rotation axis a1 of the detection assembly 100. Meanwhile, the central angle E of the first magnetic body 111 is greater than the included angle B between the power-on position and the fully-open position, so as to ensure that the first magnetic body 111 always corresponds to the magnetic field direction detection unit 202 in the process that the magnetic body 110 moves from the power-on position to the fully-open position. Referring to FIGS. 9 and 13, in some embodiments, the central angle E of the first magnetic body 111 is greater than or equal to 180 °.

Likewise, in order to save space while providing a sufficient magnetic field range for detection by the magnetic field direction detection unit 202 and increase the magnetic force of the device to attract external metal materials, in one embodiment, referring to fig. 5-8 and fig. 9 and 13, the second magnetic body 112 is disposed circumferentially around the rotation axis a1 of the detection assembly 100. Meanwhile, the central angle F of the second magnetic body 112 is greater than the shutdown compensation angle a between the shutdown position and the closed position, so as to ensure that the second magnetic body 112 always corresponds to the magnetic field direction detection unit 202 in the process that the magnetic body 110 moves from the shutdown position to the closed position. Referring to FIGS. 9 and 13, in some embodiments, the central angle F of the second magnetic body 112 is less than or equal to 180 °.

In the embodiment shown in fig. 9, the central angle E of the first magnetic body 111 and the central angle F of the second magnetic body 112 are both 180 °, and each occupies half. In the embodiment shown in fig. 13, the central angle E of the first magnetic body 111 is 180 °, and the central angle F of the second magnetic body 112 is 90 °, so that a gap is left between the first magnetic body 111 and the second magnetic body 112, and the gap can be used for routing the connection cable 122 between the temperature detection unit 123 and the control unit 210.

On the other hand, this application is in order to improve the accurate reliable of switching on and shutting down, and other embodiments of this application still provide and adopt magnetic induction intensity detection unit to carry out on-off control. The magnetic induction detection unit can adopt a Hall sensor or other sensors which can detect the magnetic induction and output different signals based on the size of the magnetic induction.

Referring to fig. 17-24, in some embodiments, a temperature detecting device 1 is provided, wherein a detecting member 100 is rotatably connected to a device body 200. The detection assembly 100 has a first detection region 101 and a second detection region 102 distributed around the rotational axis a1 of the detection assembly 100. One of the first detection region 101 and the second detection region 102 is provided with a third magnetic body 113 so that the magnetic induction intensity or the presence state of a magnetic field of the first detection region 101 and the second detection region 102 are different.

In the embodiment shown in fig. 17-24, the third magnetic member 113 occupies the first detection region 101, and the gap 114 corresponding to the third magnetic member 113 occupies the second detection region 102. Of course, in other embodiments, the space occupied by the third magnetic body 113 may be the second detection region 102, and the space occupied by the gap 114 corresponding to the third magnetic body 113 may be the first detection region 101.

The magnetic induction detection unit 203 is disposed at one side of the motion track of the magnetic body 110 for detecting the magnetic field signals of the first detection region 101 and the second detection region 102. When the magnetic induction detection unit 203 detects that the magnetic induction of the third magnetic body 113 meets the first set range, a first signal is sent out; when the magnetic induction detection unit 203 detects that the magnetic induction of the third magnetic body 113 satisfies the second set range, a second signal is emitted. Wherein the second setting range is smaller than the first setting range. The control unit 210 controls the temperature detection device 1 to be powered on according to one of the first signal and the second signal, and controls the temperature detection device 1 to be powered off according to the other signal. The first and second signals are the same as before.

When the third magnetic body 113 triggers the magnetic induction detection unit 203 to send out the first signal or the second signal for controlling the start-up, the detection assembly 100 (including the third magnetic body 113) is located at the start-up position; when the third magnetic body 113 triggers the magnetic induction detection unit 203 to send out the second signal or the first signal for controlling the shutdown, the detection assembly 100 (including the third magnetic body 113) is located at the shutdown position.

Wherein the reference value of the first set range is usually larger than the reference value of the second set range. The first setting range and the second setting range are generally dependent on the setting of the magnetic induction detection unit 203 itself, and the first setting range and the second setting range are different between magnetic induction detection units 203 of different principles or specifications. In one embodiment, the magnetic induction detection unit 203 is a hall sensor, and the reference value of the first setting range of the magnetic induction detection unit 203 is B _OP B of the _OP Is about 30Gs, and in some embodiments is 32Gs, when the detected magnetic induction of the third magnetic substance 113 is greater than or equal to 32Gs, which means that the first setting range is satisfied, the magnetic induction detection unit 203 sends out the first signal. The reference value of the second setting range is B _RP The gauss value is about 20Gs, in some embodiments 24Gs, and when the detected magnetic induction of the third magnetic body 113 is less than or equal to 24Gs, which means that the second setting range is satisfied, the magnetic induction detection unit 203 sends out the second signal. When the magnetic induction intensity to be detected is greater than B _OP Or less than B _RP Then, the magnetic induction change does not affect the triggering of the magnetic induction detection unit 203 until the next triggering.

In some embodiments, during the opening of the detection assembly 100, when the magnetic induction detection unit 203 detects a magnetic field strength greater than B _OP Time, output low level, temperatureStarting up the degree detection device 1; otherwise, a high level is output and the temperature detection device 1 is turned off. When the magnetic induction intensity detection unit 203 detects that the magnetic field intensity is less than B during the process of folding the detection assembly 100 _RP When the temperature detection device 1 is started, a high level is output, and the temperature detection device 1 is shut down; otherwise, a low level is output and the temperature detection device 1 is turned on. Of course, it can be understood that, by changing the control logic, in some embodiments, when the high level is output, the temperature detection device 1 is powered on, and when the low level is output, the temperature detection device 1 is powered off.

In these embodiments of performing magnetic field detection by the magnetic induction detection unit 203, detection of the magnetic field direction may be omitted, and the first magnetic body 111 and the second magnetic body 112 having different magnetic pole directions need not be provided, and the on/off can be triggered only by detecting the magnetic induction of the third magnetic body 113. Moreover, since the first detection region 101 and the second detection region 102 are distributed around the rotation axis a1, when the magnetic body 110 rotates, the range in which the first detection region 101 and the second detection region 102 can be detected by the magnetic induction detection unit 203 is longer, and the detection region is larger and is more easily detected by the magnetic induction detection unit 203, thereby increasing the reliability of the on/off operation. Furthermore, the third magnetic body 113 is disposed around the rotation axis a1, so that the area and the overall volume of the third magnetic body 113 in the radial plane are enlarged, the outward magnetic attraction of the whole device is larger, the device can be magnetically adsorbed on other articles, and the temperature detection device 1 can be stored and taken out more easily.

Further, when using the third magnetic body 113 solution, the detection assembly 100 (including the third magnetic body 113) also has a closed position and a fully open position. As shown in fig. 1 and 17, when the probe assembly 100 (including the third magnetic body 113) is located at the closed position, the probe assembly 100 is folded onto the device body 200; as shown in fig. 2 and 19, when the detection member 100 (including the third magnetic body 113) is located at the fully open position, the detection member 100 is opened to the maximum position. The power-on position is located on a movement track of the detection assembly 100 (including the third magnetic body 113) from the power-off position to the fully-on position, and the power-off position is located on a movement track of the detection assembly 100 (including the third magnetic body 113) from the fully-on position to the power-off position.

To better describe the closed position, the off position, the on position, and the fully open position, referring to fig. 17-20, in one embodiment, variations of the positions are schematically illustrated. In order to more clearly show the relationship among the positions, fig. 17-20 use the third magnetic body 113 as a reference to make auxiliary schematic lines corresponding to the positions, wherein c1 is an auxiliary schematic line for the closed position on the third magnetic body 113, c2 is an auxiliary schematic line for the closed position on the third magnetic body 113, c3 is an auxiliary schematic line for the open position on the third magnetic body 113, and c4 is an auxiliary schematic line for the fully open position on the third magnetic body 113. These schematic lines c1, c2, c3, and c4 are virtual reference lines taken on the third magnetic body 113 to facilitate description of the moving position of the third magnetic body 113.

Referring to fig. 17, when the third magnetic body 113 moves clockwise from the open state to the closed position along the arrow, the auxiliary schematic line c1 corresponds to the magnetic induction intensity detection unit 203, and the third magnetic body 113 is located in the closed position at this time. Referring to fig. 18, when the third magnetic member 113 moves counterclockwise from the closed position to the open position as shown by the arrow corresponding to the magnetic induction detecting unit 203, the third magnetic member 113 is located at the open position. Referring to fig. 19, when the third magnetic body 113 moves counterclockwise from the start position to the fully open position as shown by an arrow, the auxiliary indication line c4 corresponds to the magnetic induction intensity detection unit 203, and the third magnetic body 113 is located at the fully open position at this time. Referring to fig. 20, when the third magnetic member 113 moves counterclockwise from the open state to the shutdown position as indicated by an arrow, the auxiliary indicating line c2 corresponds to the magnetic induction intensity detecting unit 203, and the third magnetic member 113 is located at the shutdown position. Reference is made to the preceding with respect to the definition of the angles a, B, C, D, H in fig. 17-20.

Further, in some embodiments, the first detection region 101 is disposed around the rotation axis a1 of the detection assembly 100, and the central angle I of the first detection region 101 is greater than the included angle B between the start position and the fully open position, so as to ensure that the first detection region 101 always corresponds to the magnetic induction detection unit 203 during the movement of the detection assembly 100 from the start position to the fully open position. Referring to FIGS. 17-24, in these embodiments, the third magnetic element 113 is the first probe region 101, and the central angle I of the first probe region 101 is the central angle I of the third magnetic element 113, wherein the central angle I is greater than or equal to 180 degrees, such as greater than or equal to 260 degrees. In some embodiments, the central angle I is 180 ° or 225 °. Of course, the range may be set larger according to actual requirements. In other embodiments, the range and central angle of the first detection region 101 may be larger than those of the third magnetic body 113.

Further, in some embodiments, the second detection region 102 is disposed around the circumferential direction of the rotation axis a1 of the detection assembly 100, and the central angle J of the second detection region 102 is greater than the shutdown compensation angle a between the shutdown position and the closed position, so as to ensure that the second detection region 102 always corresponds to the magnetic induction detection unit 203 during the process that the third magnetic body 113 moves from the shutdown position to the closed position. Referring to fig. 17-24, in these embodiments, the gap 114 left on the third magnetic body 113 is the second probe region 102, the central angle J of the second probe region 102 is the central angle J of the gap 114, and the central angle J of the second probe region 102 is less than or equal to 100 °, for example, the central angle J is less than or equal to 100 °. In some embodiments the central angle J of the second detection zone 102 is 90 °. Of course, the range may be set to be larger according to actual needs. In other embodiments, the range and the central angle of the second probe region 102 may be larger than the range and the central angle corresponding to the notch 114 on the third magnetic body 113.

In order to ensure a larger opening range of the detection assembly 100, in some embodiments, the central angle I of the first detection region 101 > the central angle J of the second detection region 102.

Further, the central angle J of the notch 114 needs to ensure that when the notch 114 corresponds to the magnetic induction detection unit 203, the magnetic induction measured by the magnetic induction detection unit 203 can be smaller than B within a certain angle range _RP The value is to ensure that the temperature detection device 1 can be stably shut down under shaking, vibration or magnet errors.

In general, in some embodiments, the first setting range is used for power-on determination, the second setting range is used for power-off determination, and when the third magnetic body 113 is in the closed position, the smaller the magnetic induction intensity measured by the magnetic induction intensity detection unit 203 at the notch 114 is, the smaller the distance B is _OP The further away, the less likely it is to be mistakenly tripped by a mis-hit, mis-operation, magnetic permeable material or other magnetic body 110, and in some embodiments, even the magnetic induction intensity measured by the magnetic induction detection unit 203 at the notch 114 may be 0 (when the center line of the notch 114 is aligned with the magnetic induction detection unit 203, the magnetic induction intensity measured by the magnetic induction detection unit 203 is usually 0). However, the condition of triggering the power-on requires that the magnetic induction detected by the magnetic induction detection unit 203 should reach B _OP This process requires rotating the third magnetic member 113 (as shown in fig. 17 and 18) to gradually bring the third magnetic member 113 close to the magnetic induction detection unit 203, thereby gradually increasing the magnetic induction measured by the magnetic induction detection unit 203. When the initial magnetic induction measured by the magnetic induction detection unit 203 in the closed position is 0 or too small, a larger angle needs to be rotated to enable the third magnetic body 113 to move to a position where the magnetic induction detection unit 203 can be triggered to send a power-on signal, which undoubtedly increases the power-on angle, and further reduces the effective opening angle of the detection assembly 100 after power-on (i.e., the angle at which the detection assembly 100 can open on the premise of being capable of detecting temperature). Therefore, in one embodiment, when the detecting member 100 is located at the closed position, the magnetic induction intensity of the third magnetic substance 113 detected by the magnetic induction detecting unit 203 is set to 0 < the second setting range (B) _RP ). That is, when the detecting assembly 100 (including the third magnetic body 113) is in the closed position, the magnetic induction detecting unit 203 can detect a certain initial magnetic induction, and reduce the initial magnetic induction and B _OP The difference value makes the third magnetic body 113 not need to rotate by an excessive angle, so as to meet the starting requirement and reduce the starting angle C. In some embodiments, the magnetic induction detection unit 203 is capable of detecting a magnetic field strength of about 10-15 gauss when the detection assembly 100 is in the closed position, wherein the detection assembly 100 is rotatedAnd starting up can be realized by about 20 degrees.

Referring to fig. 17 to 24, in some embodiments, the third magnetic body 113 has a front end and a rear end in the opening direction, that is, when the third magnetic body 113 moves to the opening direction, one end of the third magnetic body located at the front side of the movement direction is the front end, and the other end is the rear end. In order to realize that when the third magnetic body 113 is in the closed position, the magnetic induction detecting unit 203 can detect a certain magnetic induction and reduce the opening angle C. In one embodiment, when the third magnetic body 113 is located at the closed position, an included angle formed between the magnetic induction detection unit 203 and the front end is smaller than an included angle formed between the magnetic induction detection unit 203 and the rear end. That is, when the third magnetic body 113 is located at the closed position, the magnetic induction detecting unit 203 corresponds to a region of the central line of the notch 114 near the front end of the third magnetic body 113, so as to reduce the opening angle.

Alternatively, referring to fig. 17 and 19, in some embodiments, when the third magnetic body 113 is in the closed position, an included angle G formed between the magnetic induction detecting unit 203 and the front end is less than or equal to a quarter of a central angle J (e.g., the central angle J of the notch 114) of the second detecting region 102, so as to ensure that the magnetic induction detecting unit 203 can detect a certain value of initial magnetic induction when the detecting assembly 100 (including the third magnetic body 113) is in the closed position.

Alternatively, in some embodiments, when the third magnetic body 113 is in the closed position, the magnetic induction of the third magnetic body 113 detected by the magnetic induction detection unit 203 is between one third and one half of the reference value of the first setting range.

In other embodiments, the second detection region 102 may also have a fourth magnetic body with a magnetic induction intensity smaller than that of the third magnetic body 113, and the fourth magnetic body and the third magnetic body 113 form a groove. The third magnetic body 113 and the fourth magnetic body may be integrally formed in a ring-shaped or disk-shaped structure.

Referring to fig. 21 to 24, in an embodiment, the third magnetic body 113 is disposed in a disc-shaped structure or a ring-shaped structure with a groove or a notch 114 around the circumferential direction of the rotation axis a1 of the detecting assembly 100, so as to increase the radial area of the third magnetic body 113 and further increase the external attracting magnetic force compared to a single small circular magnet disposed at a certain position around the circumferential direction of the rotation axis.

Further, in the above embodiments, in addition to improving the reliability of the on/off trigger, the temperature detection device 1 may be attached to a metal material through the magnetic body 110, and in some embodiments, may be attached to a metal housing or other parts of other kitchen equipment.

Specifically, the detecting assembly 100 may further have an attaching outer wall 131 for attaching a metal material, and the magnetic body 110 (which may be the first magnetic body 111, the second magnetic body 112 and/or the third magnetic body 113) is located inside the attaching outer wall for attaching the temperature detecting device 1 to the metal material.

In some embodiments, as shown in fig. 3, the magnetizing directions of the first magnetic body 111 and the second magnetic body 112 are both arranged along the axial direction thereof. The axial direction of the first magnetic body 111 and the second magnetic body 112 is the rotation axis a1 of the detection assembly 100, and the rotation axis a1 passes through the attached outer wall 131. All set up along its axial through the direction of magnetizing with first magnetic substance 111 and second magnetic substance 112, can improve the magnetic force that first magnetic substance 111 and second magnetic substance 112 act on attached outer wall 131 department to improve magnetic attraction, make temperature detecting device 1 can more firm magnetism inhale to metal material on.

In some embodiments, the attached outer wall 131 is perpendicular to the rotation axis a1, and the magnetizing directions of the first magnetic body 111 and the second magnetic body 112 can be perpendicular to the attached outer wall 131, so as to further increase the magnetic force applied by the first magnetic body 111 and the second magnetic body 112 on the attached outer wall 131.

Or, in other embodiments, the magnetizing directions of the first magnetic body 111 and the second magnetic body 112 are along the radial direction thereof. Referring to fig. 5 to 16, in some embodiments, the magnetic field direction detecting unit 202 is disposed in a radial direction of the first magnetic body 111 and the second magnetic body 112, and when the first magnetic body 111 and the second magnetic body 112 are magnetized along the radial direction, a radial magnetic field signal can be increased, which is more favorable for being detected by the magnetic field direction detecting unit 202.

Similarly, the third magnetic body 113 may also be magnetized along an axial direction thereof, where the axial direction of the third magnetic body 113 is the rotation axis a1 of the detection assembly 100, and the axial direction passes through the attached outer wall 131. Set up along its axial through the direction of magnetizing with third magnetic substance 113, can improve the magnetic force that third magnetic substance 113 acted on attached outer wall 131 department to improve magnetic attraction, make temperature detecting device 1 can more firm magnetism inhale to metal material.

In some embodiments, the attached outer wall 131 is perpendicular to the rotation axis a1, and the magnetizing direction of the third magnetic body 113 may be perpendicular to the attached outer wall 131, so as to further increase the magnetic force of the third magnetic body 113 acting on the attached outer wall 131.

Of course, referring to fig. 17-20, in some embodiments, the magnetizing direction of the third magnetic body 113 can also be along the radial direction thereof, so as to be more easily detected by the magnetic induction detecting unit 203 located in the radial direction of the third magnetic body 113.

From another perspective, in an embodiment, the ratio a of the total volume of the magnetic bodies (e.g. the volume of the first magnetic body 111+ the second magnetic body 112, or the volume of the third magnetic body 113) on the detection assembly 1 to the weight of the temperature detection device 1 is: 4.0mm ³ /g≤a≤23.0mm ³ The ratio can ensure that the temperature detection device 1 can be more stably adsorbed to a metal material, and the phenomenon that the temperature detection device 1 falls off from an adsorbed object due to overlarge weight is avoided. In some embodiments, the total magnetic force of the first magnetic body 111 plus the second magnetic body 112 or the total magnetic force of the third magnetic body 113 can be 6000Gs or less, and the total volume of the first magnetic body 111 plus the second magnetic body 112 or the third magnetic body 113 can be 500-1950mm ³ . The total weight of the temperature detection device may be 87-120g.

Further, in terms of the installation of the magnetic body 110 (which may be the first magnetic body 111, the second magnetic body 112 and/or the third magnetic body 113), referring to fig. 4 to 25, in some embodiments, the detecting component 100 is rotatably connected to the device main body 200, in some embodiments, the device main body 200 has a rotatably disposed adapter shaft 220, and the detecting component 100 is fixedly connected to the adapter shaft 220 and rotates relative to the device main body 200 through the rotating shaft 220. The rotational connection between the detecting member 100 and the main body 200 is not limited to the illustrated embodiment, and other rotational connection structures may be used.

The first magnetic body 111 and the second magnetic body 112 or the third magnetic body 113 are arranged in a disk-like structure or a ring-like structure around the circumferential direction of the rotation axis a1 of the probe assembly 100. The disc structure or the ring structure can enlarge the radial area and the whole volume of the magnetic body 110 without increasing the volume of the detection assembly 100, thereby improving the magnetic force of the magnetic body 110 and strengthening the magnetic attraction effect. Moreover, when a disc-shaped structure or an annular structure is adopted, since the radial area is increased, the axial thickness of the magnetic body 110 can be further reduced while the external magnetic attraction function is satisfied, which is beneficial to the thickness lightening and thinning of the detection assembly 100 and the whole temperature detection device 1.

In some embodiments, the middle of the disk-like structure or the ring-like structure may be left with a through hole for passing the connection cable 122 or for fixing other components (such as a fixing cover 133 hereinafter).

Further, referring to fig. 4, 9-16, and 21-25, in some embodiments, the probe assembly 100 has a base 132. The magnetic body 110 and the temperature detection unit 123 are mounted on a base 132, and the base 132 is rotatably connected to the apparatus body 200. A wiring channel 204 is provided between the base 132 and the device body 200 for accommodating the connection cable 122 of the temperature detection unit 123. The temperature detection unit 123 is signal-connected to the control unit 210 via the connection cable 122. The routing channel 204 can be located on the rotation axis a1 of the detection assembly 100 relative to the device body 200, for example, passing through the center of the connection shaft 220, so as to reduce the distortion of the connection cable 122 when the detection assembly 100 rotates, and improve the service life of the connection cable 122.

Referring to fig. 14 and 22, in some embodiments, in order to allow the connection cable 122 of the temperature detection unit 123 to penetrate into the routing channel 204 below the magnetic body 110. The magnetic body 110 has a notch 114, and the notch 114 is communicated with the routing channel 204 for passing through the connection cable 122 of the temperature detection unit 123.

Referring to fig. 25, in some embodiments, a gap 1322 may be further left on a surface of the magnetic body 110 facing the base 132, and the gap 1322 is communicated with the routing channel 204 for the connection cable 122 of the temperature detection unit 123 to pass through. The side of the void 1322 has an opening 1323, the opening 1323 being used for connecting the cable 122 into the void 1322. Compared with the gap 114 shown in fig. 14 and 21, the gap 1322 is formed on the bottom surface of the magnetic body 110, so that the moving area of the connection cable 122 can be increased, the connection cable 122 has a higher degree of freedom during the rotation of the detection assembly 100, and the connection cable 122 can be further prevented from being distorted.

Referring to fig. 4 and 25, in some embodiments, the base 132 has a bottom surface 1324 and a magnetic support 1321, the trace channel 204 is disposed on the bottom surface 1324, and the magnetic body 110 is mounted on the magnetic support 1321 and forms a gap 1322 with the bottom surface 1324.

Further, referring to fig. 4 and 25, in some embodiments, the base 132 has a cylindrical structure having a cavity, the magnetic body 110 is disposed in the cavity, the magnetic body support 1321 is convexly disposed on an inner wall of the cavity, and an opening 1323 is formed between the magnetic body supports 1321. The magnetic material support 1321 may be protrudingly disposed on the bottom wall and/or the side wall of the cavity to form a support table on which the magnetic material 110 is placed.

Since the magnetic body 110 itself is not easy to be processed and fixed, referring to fig. 4 and 25, in some embodiments, the detecting assembly 100 has a fixing cover 133, the fixing cover 133 covers the magnetic body 110, and the fixing cover 133 is fixedly connected with the base 132 to fix the magnetic body 110 on the base 132. The cover 133 may be snapped, glued, screwed, welded, etc. to the base 132. In the embodiment shown in fig. 4 and 25, the fixing cover 133 is fixed to the base 132 by a snap 1331, so as to be easily detached. Of course, in order to enhance the fixing, a fixing hole 1332 may be provided at the middle of the fixing cover 133, and the fixing may be fixed to the apparatus main body 200, specifically, the above-mentioned transfer shaft 220, through the fixing hole 1332. In order to enhance the fixing effect, the fixing cover 133 may be made of a metal material. Of course, other materials may be used for the securing cap 133, and in some embodiments, the securing cap 133 is made of plastic or the like.

Further, the fixing cover 133 itself can be used as a cover of the detecting assembly 100, in other embodiments, referring to fig. 4 and 25, the detecting assembly 100 further includes a cover 134, the cover 134 is fastened on the base 132 and covers the cavity of the base 132, and the magnetic body 110 and the fixing cover 133 located in the cavity. The outer wall of the outer cover 134 may be considered an absorbent outer wall. Of course, the absorbent outer wall may be disposed at other locations of the probe assembly 100. The cover can be used as a decorative cover, and therefore, materials which are easy to process, such as plastics, and the like can be selected.

Further, referring to fig. 9-16 and fig. 21-24, in some embodiments, the base 132 is a cylinder having a cavity, the detecting assembly 100 has a probe 121, the temperature detecting unit 123 is disposed on the probe 121, one end of the probe 121 extends into the cavity of the base 132, the magnetic body 110 is disposed on one side of the probe 121, and the magnetic body 110 is disposed with an avoiding structure to avoid the probe 121. In some embodiments, in the embodiments shown in fig. 9-16 and 21-24, the end of the annular magnetic body 110 extending into the base 132 toward the probe 121 is cut to form a space for accommodating the probe 121. The probe 121 and the magnetic body 110 are arranged side by side, so that the thickness of the temperature measuring component in the direction of the rotation axis a1 can be reduced, and the device is light and thin.

Further, referring to fig. 3, 4 and 25, in some embodiments, the device body 200 may have a main housing 230, and the main housing 230 has a mounting cavity, and the control unit 210, the display screen assembly 240, a battery (which may be omitted), and other components may be accommodated in the mounting cavity. The main housing 230 may have a first housing 231, a second housing 232, or more sub-housings. The first housing 231 and the second housing 232 enclose the installation cavity. The detection assembly 100 is integrally movably mounted on the main housing 230, and in some embodiments, is rotatably connected to the main housing 230 via the above-mentioned rotating shaft, but may also be movably connected in a translational or other manner. Referring to fig. 4 and 25, in one embodiment, besides the main housing 230, a housing 250 may be further disposed to cover the upper surface of the main housing 230, so as to form a more compact appearance.

Those skilled in the art will recognize that many changes may be made to the details of the above-described embodiments without departing from the underlying principles of the invention. Accordingly, the scope of the invention should be determined from the following claims.

Claims

1. A temperature sensing device, comprising:

the detection assembly is provided with a temperature detection unit for detecting temperature and magnetic bodies, the magnetic bodies are at least divided into a first magnetic body and a second magnetic body, and the magnetic pole directions of the first magnetic body and the second magnetic body are opposite;

the magnetic field direction detection unit is arranged on one side of the motion track of the magnetic body and used for detecting magnetic field signals of the first magnetic body and the second magnetic body, and the magnetic field signals at least comprise magnetic field directions; the magnetic field direction detection unit sends out a first signal and a second signal based on detection results of magnetic field signals of the first magnetic body and the second magnetic body in the movement process of the first magnetic body and the second magnetic body;

2. The temperature detection device according to claim 1, wherein the magnetic field direction detection unit issues a first signal when the magnetic field signal of the first magnetic body is detected by the magnetic field direction detection unit and a detected magnetic field intensity of the first magnetic body satisfies a first set range;

the magnetic field direction detection unit detects the magnetic field signal of the second magnetic body, the detected magnetic field strength of the second magnetic body meets a second set range, and the magnetic field direction detection unit sends out a second signal.

3. The temperature detection device according to claim 1 or 2, wherein the detection component has a power-on position and a power-off position on a motion track; when the detection component triggers the magnetic field direction detection unit to send out the first signal or the second signal for controlling the startup, the detection component is positioned at the startup position; when the detection component triggers the magnetic field direction detection unit to send out the second signal or the first signal for controlling shutdown, the detection component is located at the shutdown position;

a closed position and a fully opened position are arranged on the motion track of the detection component relative to the device main body, and when the detection component is positioned at the closed position, the detection component is folded on the device main body; when the detection component is located at the fully open position, the detection component is opened to a maximum position;

the power-on position is located on a movement track of the detection assembly from the closed position to the fully-opened position, and the power-off position is located on a movement track of the detection assembly from the fully-opened position to the closed position.

4. A temperature sensing device according to claim 3, wherein the shutdown position and the closed position coincide or form a shutdown compensation angle a therebetween.

5. The temperature detecting device of claim 3, wherein an angle between the power-on position and the power-off position is a power-on angle C, an angle between the power-on position and the power-off position is an angle D, and the power-on angle C is greater than the angle D.

6. The temperature detecting device according to any one of claims 1 to 5, wherein the detecting member has an attaching outer wall for attaching a metal material, and the magnetic body is located inside the attaching outer wall to attach the temperature detecting device to the metal material.

7. The temperature detecting device according to any one of claims 1 to 6, wherein the first magnetic body and the second magnetic body are magnetized in a direction perpendicular to the attached outer wall.

8. A temperature sensing device, comprising:

9. The temperature detection device of claim 8, wherein the detection assembly has a motion path with a power-on position and a power-off position; when the detection component triggers the magnetic field direction detection unit to send out the first signal or the second signal for controlling the startup, the detection component is located at the startup position; when the detection component triggers the magnetic field direction detection unit to send out the second signal or the first signal for controlling shutdown, the detection component is located at the shutdown position;

the detection assembly is provided with a closed position and a fully opened position relative to the movement track of the device main body, and when the detection assembly is located at the closed position, the detection assembly is folded on the device main body; when the detection assembly is located at the full opening position, the detection assembly is opened to a maximum position;

10. The temperature sensing device of claim 9, wherein the shutdown position and the closed position are coincident or spaced apart; the opener position and the fully open position are coincident or spaced apart.

11. The temperature detecting device as claimed in claim 8 or 9, wherein the detecting member has an attaching outer wall for attaching a metal material, and the magnetic body is located inside the attaching outer wall for attaching the temperature detecting device to the metal material.

12. The temperature sensing device as claimed in claim 10, wherein the magnetization direction of the magnetic body is perpendicular to the attached outer wall.

13. The temperature detecting device according to any one of claims 1 to 12, wherein a ratio a of a total volume of the magnetic bodies on the detecting member to a weight of the temperature detecting device is: 4.0mm ³ /g≤a≤23.0mm ³ /g。

14. The temperature sensing device of any one of claims 1-13, wherein the sensing member is rotatably coupled to the device body, and the magnetic body is disposed in a disk-like configuration or a ring-like configuration around a circumferential direction of a rotational axis of the sensing member.

15. A temperature sensing device, comprising:

the device comprises a device body, a temperature detection unit and a control unit, wherein the device body is provided with a control unit and a magnetic field intensity detection unit, the magnetic field intensity detection unit is in signal connection with the control unit, and the temperature detection unit is in signal connection with the control unit;

16. The temperature sensing device of claim 15, wherein the detection assembly has a motion path having a power-on position and a power-off position; when the third magnetic body triggers the magnetic field direction detection unit to send out the first signal or the second signal for controlling the startup, the third magnetic body is positioned at the startup position; when the third magnetic body triggers the magnetic field direction detection unit to send out the second signal or the first signal for controlling shutdown, the third magnetic body is located at the shutdown position;

a closed position and a completely opened position are arranged on the movement track of the third magnetic body relative to the device main body, and when the third magnetic body is positioned at the closed position, the detection assembly is folded on the device main body; when the third magnetic body is positioned at the fully open position, the detection assembly is opened to the maximum position;

17. The temperature sensing device of claim 16, wherein the shutdown position and the closed position coincide or form a shutdown compensation angle a therebetween.

18. The temperature sensing device of claim 16, wherein an angle between the power-on position and the power-off position is a power-on angle C, and an angle between the power-on position and the power-off position is an angle D, the power-on angle C being greater than the angle D.

19. The temperature detecting device according to claim 16, wherein the magnetic field strength of the third magnetic body detected by the magnetic field strength detecting unit is > 0 when the third magnetic body is in the closed position.

20. The temperature detecting device of any one of claims 15 to 19, wherein the detecting member has an attaching outer wall for attaching a metal material, the third magnetic body is located inside the attaching outer wall to attach the temperature detecting device to the metal material, and a magnetizing direction of the third magnetic body is perpendicular to the attaching outer wall.