CN217953691U - Heat source detection equipment - Google Patents
Heat source detection equipment Download PDFInfo
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- CN217953691U CN217953691U CN202222051780.5U CN202222051780U CN217953691U CN 217953691 U CN217953691 U CN 217953691U CN 202222051780 U CN202222051780 U CN 202222051780U CN 217953691 U CN217953691 U CN 217953691U
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Abstract
The embodiment of the utility model discloses heat source check out test set, equipment includes: a pyroelectric infrared sensor, a mechanical displacement member, and a lens; wherein, mechanical displacement part is installed pyroelectric infrared sensor's first end side, lens are installed pyroelectric infrared sensor's second end side, pyroelectric infrared sensor installs mechanical displacement part is last, drives through mechanical displacement part pyroelectric infrared sensor's detection area carries out the displacement adjustment and adopts the technical scheme of the utility model, the skew of pyroelectric infrared sensor is driven in rotation through mechanical displacement part to the heat source to stillness or longitudinal movement detects.
Description
Technical Field
The embodiment of the utility model provides a relate to passive infrared defect detection technical field, especially relate to a heat source check out test set.
Background
The low power consumption camera cannot perform video monitoring and video content analysis because the main control unit is usually in a power-off state, and the pyroelectric infrared sensor (PIR) is usually used as an alarm detection source at present because of the low power consumption characteristic of the PIR.
However, due to the limitation of the principle of the PIR, the PIR is difficult to trigger when the heat source is still or moves towards the PIR; taking the dual-source probe as an example, the infrared light is released when the heat source target is static, but the dual-element probe adopts a complementary technology, so that no electric signal output is generated. Under the dynamic movement of the heat source target, the human body is sequentially induced by the source A or the source B through the probe, and the double sources lose the complementary balance effect and sensitively generate signal output; when the human body moves longitudinally opposite to the probe, the double sources can hardly generate signal output.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an in provide a heat source check out test set, the skew of pyroelectric infrared sensor is driven in rotation through mechanical displacement part to the heat source to motionlessness or longitudinal movement detects.
The embodiment of the utility model provides an in provide a heat source check out test set, equipment includes: a pyroelectric infrared sensor, a mechanical displacement member, and a lens; the mechanical displacement component is arranged on the first end side of the pyroelectric infrared sensor, the lens is arranged on the second end side of the pyroelectric infrared sensor, the pyroelectric infrared sensor is arranged on the mechanical displacement component, and the mechanical displacement component drives the detection area of the pyroelectric infrared sensor to perform displacement adjustment.
The embodiment of the utility model provides an in provide a heat source check out test set, equipment includes: a pyroelectric infrared sensor, a mechanical displacement member, and a lens; the mechanical rotating component is arranged on the first end side of the pyroelectric infrared sensor, the lens is arranged on the second end side of the pyroelectric infrared sensor, the pyroelectric infrared sensor is arranged on the mechanical displacement component, and the mechanical displacement component drives the detection area of the pyroelectric infrared sensor to perform displacement adjustment. Adopt the technical scheme of the utility model, the displacement through mechanical displacement part drives pyroelectric infrared sensor's skew to detect the heat source to stillness or longitudinal movement.
The above technical solutions of the present invention are only summarized, and the technical means of the present invention can be implemented according to the content of the description in order to make the above and other objects, features and advantages of the present invention more obvious and understandable, and the following detailed embodiments of the present invention are provided.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a heat source detecting apparatus provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a common heat source detecting device provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a heat source detecting device provided in an embodiment of the present invention;
fig. 4A is a schematic structural diagram of a heat source detecting apparatus based on a mechanical rotating component according to an embodiment of the present invention;
fig. 4B is a schematic structural diagram of a heat source detection device based on a mechanical translation component according to an embodiment of the present invention;
fig. 5 is a block diagram of a heat source detecting device including a fixed magnetic attraction component according to an embodiment of the present invention;
fig. 6A is a block diagram of a heat source detecting device including a driving component according to an embodiment of the present invention;
fig. 6B is a block diagram of another heat source detecting device including a driving unit according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown, however, it is to be understood that the exemplary embodiments described herein are merely illustrative of the present invention and are not limiting thereof. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In addition, it should be noted that, for convenience of description, only a part of the structure related to the present invention is shown in the drawings, not the whole structure.
The following provides a heat source detecting device according to an embodiment of the present invention, and describes in detail alternatives in various embodiments and embodiments.
Fig. 1 is a schematic structural diagram of a heat source detection device provided in an embodiment of the present invention, and this embodiment is applicable to the situation of detecting a heat source. Referring to fig. 2, a common heat source detection device is used for detecting a heat source, when the heat source moves dynamically, the heat source is induced by the source a 101 and the source B102 of the pyroelectric infrared sensor 120, and the double sources lose complementary balance effect and sensitively generate signal output; when the heat source moves longitudinally opposite to the pyroelectric infrared sensor, the double sources are difficult to generate signal output. Therefore the utility model provides a heat source check out test set to the heat source to static or longitudinal movement detects.
As shown in fig. 1, the heat source detecting apparatus provided in the embodiment of the present invention may include: a mechanical displacement member 110, a pyroelectric infrared sensor 120, and a lens 130. Wherein:
the mechanical displacement component 110 is installed at a first end side of the pyroelectric infrared sensor 120, the lens 130 is installed at a second end side of the pyroelectric infrared sensor 120, and the pyroelectric infrared sensor 120 is installed on the mechanical displacement component 110, so that a detection area of the pyroelectric infrared sensor 120 is driven by the mechanical displacement component 110 to perform displacement adjustment.
The mechanical displacement component 110 may be a component that drives the pyroelectric infrared sensor to rotate, and the rotation of the mechanical displacement component drives the pyroelectric infrared sensor to rotate, so as to detect a heat source that is stationary or running longitudinally.
As an alternative but non-limiting implementation, the mechanical displacement part 110 comprises a mechanical rotation part 111 and a mechanical translation part 112; the mechanical rotating component can rotate in two directions, and the detection area of the pyroelectric infrared sensor is rotationally adjusted between two detection angles around the rotation central axis of the mechanical rotating component; the mechanical translation component drives the pyroelectric infrared sensor to perform displacement adjustment within a preset distance range through translation.
As an alternative but non-limiting realization, the mechanical rotation part comprises an axially rotatable bearing, the axis of which coincides with the rotation central axis of the mechanical rotation part. For example, the bearing is used as a circle center to drive the pyroelectric infrared sensor to rotate and adjust between two detection angles so as to detect the heat source.
The pyroelectric infrared sensor (PIR) 120 can convert the infrared signal variation with wavelength between 8-12um into electric signal, and can inhibit the white light signal in nature, therefore, in the warning area of the passive infrared detector, when no heat source moves, the pyroelectric infrared sensor senses only the background temperature, when the heat source enters the warning area, through the fresnel lens, the pyroelectric infrared sensor senses the difference signal between the heat source temperature and the background temperature, therefore, the infrared detection basic concept of the pyroelectric infrared sensor is to sense the temperature difference between the heat source and the background object, and convert the detected infrared of the heat source into electric signal for output.
The lens 130 may be referred to as a fresnel lens, which functions as two: the first is focusing action, i.e. the pyroelectric infrared signal is refracted and/or reflected on the PIR, and the second action is to divide the warning area of the PIR into a plurality of bright areas and dark areas, so that the heat source object entering the warning area can generate a variable pyroelectric infrared signal on the PIR in a temperature change mode, and the PIR can generate a variable electric signal.
As an alternative but non-limiting implementation, the detection area of the pyroelectric infrared sensor passes through the lens from the first end of the lens and out of the second end of the lens, and the lens transmits the pyroelectric infrared signal in the detection area to the pyroelectric infrared sensor.
Referring to fig. 3, a detection region 150 of the pyroelectric infrared sensor 120 passes through the lens 130 to detect a heat source, and the lens transmits pyroelectric infrared information released from the heat source in the detection region to the pyroelectric infrared sensor.
As an optional but non-limiting implementation manner, the device further includes a first magnetic attraction component and a second magnetic attraction component, the first magnetic attraction component and the second magnetic attraction component alternately generate different magnetic attraction differences, magnetic attraction force generated by the first magnetic attraction component acts on the third end of the pyroelectric infrared sensor, magnetic attraction force generated by the second magnetic attraction component acts on the fourth end of the pyroelectric infrared sensor, and a line direction from the first end to the second end of the pyroelectric infrared sensor is perpendicular to a line direction from the third end to the fourth end of the pyroelectric infrared sensor.
The first magnetic part and the second magnetic part are both variable magnetic electromagnetic parts, and the first magnetic part and the second magnetic part alternately generate magnetic attraction. For example, power is supplied to the first magnetic attraction member 171, at this time, the first magnetic attraction member 171 generates magnetic attraction, and the magnetic attraction of the second magnetic attraction member 172 is 0; the second magnetic component 172 is powered on, and at this time, the second magnetic component 172 generates magnetic attraction, and the magnetic attraction of the first magnetic component 171 is 0. The power supply module 190 supplies power to the first magnetic attraction part 171 and the second magnetic attraction part 172 alternately, so that magnetic attraction is generated between the first magnetic attraction part and the second magnetic attraction part alternately.
Optionally, the first magnetic attraction component and the second magnetic attraction component are powered alternately, so that the generated traffic magnetic attraction is acted on the pyroelectric infrared sensor. For example, the power supply module 190 supplies power to the first magnetic attraction member 171, and the magnetic attraction force generated by the energized first magnetic attraction member acts on the third end 121 of the pyroelectric infrared sensor, so that the pyroelectric infrared sensor is shifted for the first time to detect the heat source. The power module disconnection is inhaled the part with first magnetism and is connected, and the magnetic attraction that the part produced is inhaled to first magnetism disappears, and power module inhales the power supply of part 171 for the second magnetism, and the magnetic attraction that the part produced is inhaled to the second magnetism after the circular telegram acts on pyroelectric infrared sensor's fourth end 122, and the pyroelectric infrared sensor that makes takes place the skew for the second time, detects the heat source. Wherein the first deviation is opposite to the second deviation.
The first magnetic part and the second magnetic part alternately generate magnetic attraction, and the pyroelectric infrared sensor is linked through magnetic attraction and shifts repeatedly so as to solve the problem that the pyroelectric infrared sensor cannot detect the static or longitudinal movement of a heat source.
As an optional but non-limiting implementation manner, the pyroelectric infrared sensor is fixed on the mechanical displacement component through a bearing mounting plate, a first magnetic point component used in cooperation with the first magnetic attraction component and a second magnetic point component used in cooperation with the second magnetic attraction component are configured on the bearing mounting plate, and the first magnetic point component and the second magnetic point component are located on a third end side and a fourth end side of the pyroelectric infrared sensor respectively.
As an alternative but non-limiting implementation, a first end of the pyroelectric infrared sensor 120 is fixedly connected with a first end of the carrier mounting plate 140, and the mechanical displacement member 110 is fixedly connected with a second end of the carrier mounting plate 140. The third end of bearing the weight of the mounting panel is installed with inhale the first magnetism point part 141 that the part cooperation was used with first magnetism, the fourth end of bearing the weight of the mounting panel is installed with inhale the second magnetism point part 142 that the part cooperation was used with first magnetism, the line direction that bears the weight of the first end of mounting panel to the second end is perpendicular with the line direction that bears the weight of the third end of mounting panel to the fourth end, the first end that bears the weight of the mounting panel deviates from with the second end in the direction.
Taking a mechanical rotation component as an example, referring to fig. 4A, the pyroelectric infrared sensor 120 is fixedly connected to a first end of the bearing mounting plate 140, and the mechanical rotation component 111 is fixedly connected to a second end of the bearing mounting plate 140. When the first magnetic attraction member 171 generates magnetic attraction, the first magnetic point member 141 mounted at the third end of the mounting plate 140 is connected to the first magnetic attraction member 171, and the mechanical rotation member 111 drives the pyroelectric infrared sensor 120 to rotate toward the first magnetic attraction member 171. When the second magnetic attraction member 172 generates magnetic attraction, the second magnetic point member 142 mounted at the fourth end of the bearing mounting plate 140 is connected to the second magnetic attraction member 172, and the mechanical rotation member 111 drives the pyroelectric infrared sensor 120 to rotate toward the second magnetic attraction member 172. The mechanical rotation component 111 drives the pyroelectric infrared sensor 120 to rotate repeatedly between two detection angles so as to detect a heat source which is static or moves longitudinally.
Taking the mechanical translation component as an example, referring to fig. 4B, when the first magnetic component 171 generates magnetic attraction, the first magnetic point component 141 installed at the third end of the bearing mounting plate 140 is connected to the first magnetic component 171, and the mechanical translation component 112 drives the pyroelectric infrared sensor 120 to translate toward the first magnetic component 171. When the second magnetic component 172 generates magnetic attraction, the second magnetic point component 142 mounted at the fourth end of the bearing mounting plate 140 is connected to the second magnetic component 172, and the mechanical translation component 112 drives the pyroelectric infrared sensor 120 to translate toward the second magnetic component 172.
The first magnetic point component 141 may be located at a third end side of the pyroelectric infrared sensor, and may also be located at a third end of the load-bearing mounting board; similarly, the second magnetic dot component 142 may be located at a fourth end of the pyroelectric infrared sensor, and may also be located at a fourth end of the carrier mounting plate. Wherein, magnetism point part is connected with magnetism suction part through magnetism suction force that magnetism suction part produced to drive pyroelectric infrared sensor and rotate, consequently, magnetism point part's position is in the embodiment of the utility model provides an do not specifically restrict, can drive pyroelectric infrared sensor by magnetism suction force that magnetism suction part produced promptly and rotate can.
The embodiment of the utility model discloses heat source detection equipment, the mechanical displacement part is installed at the first end side of the pyroelectric infrared sensor, the lens is installed at the second end side of the pyroelectric infrared sensor, the pyroelectric infrared sensor is installed on the mechanical displacement part, and the mechanical displacement part drives the detection area of the pyroelectric infrared sensor to perform displacement adjustment; the first magnetic attraction component and the second magnetic attraction component are powered alternately, and the generated traffic magnetic attraction acts on the pyroelectric infrared sensor. Adopt the technical scheme of the utility model, first magnetism inhale the part with the second magnetism is inhaled and is produced magnetism in turn between the part and inhale, inhales linkage pyroelectric infrared sensor through magnetism and squints repeatedly, and when the heat source was motionless or longitudinal movement, detection area also can be constantly cut with the heat source to thereby make pyroelectric infrared sensor double-source probe unbalance production signal output.
Fig. 5 is a block diagram of a heat source detecting device including a fixed magnetic attraction component provided in an embodiment of the present invention, and the embodiment of the present invention is further optimized on the basis of the above embodiment, and the embodiment of the present invention can be combined with each alternative in one or more embodiments. In the embodiment of the present invention, the heat source detecting apparatus including the fixed magnetic attraction component, as shown in fig. 5, the second magnetic attraction component 172 includes a fixed magnetic attraction component 173; wherein:
first magnetism is inhaled part 171 and is inhaled the part for the electromagnetism of variable magnetism, second magnetism is inhaled part 172 and is inhaled part 173 including fixed magnetism, just first magnetism is inhaled the magnetic attraction power between part and the first magnetism point part and is greater than the magnetic attraction power between part and the second magnetism point part is inhaled to the second magnetism.
Referring to fig. 5, one magnetic attraction member may be eliminated, for example, a second magnetic attraction member, which may be a fixed magnetic attraction member 173, including but not limited to a magnet. When the first magnetic attraction part 171 is powered on, the first magnetic attraction part 171 is connected with the first magnetic point part 141; when the first magnetic attraction part 171 is powered off, the fixed magnetic attraction part 173 is connected with the second magnetic point part 142. The magnetic attraction between the first magnetic attraction part and the first magnetic point part is larger than the magnetic attraction between the fixed magnetic attraction part and the second magnetic point part, so that the first magnetic attraction part can be connected with the first magnetic point part when being electrified.
As an optional but non-limiting implementation manner, the first magnetic attraction part and the second magnetic attraction part are both electromagnetic attraction parts with variable magnetic attraction, and magnetic attraction is generated between the first magnetic attraction part and the second magnetic attraction part alternately. For example, when the first magnetic attraction component is electrified, the magnetic attraction force between the first magnetic attraction component and the first magnetic point component is large, and the magnetic attraction force between the fixed magnetic attraction component and the second magnetic point component is small; when the first magnetic part is powered off, the magnetic attraction force between the first magnetic part and the first magnetic point part is 0, and at the moment, the fixed magnetic part and the second magnetic point part have the magnetic attraction force. The first magnetic part is powered on and powered off alternately, so that magnetic attraction is generated alternately between the first magnetic part and the second magnetic part.
The utility model provides a heat source check out test set including fixed magnetism part is inhaled, will the part is inhaled to second magnetism and fixed magnetism is inhaled the part and is changed into, can be for the user power saving. Through inhaling the part to first magnetism and alternate circular telegram and outage for first magnetism inhale the part with fixed magnetism is inhaled and is produced magnetism in turn between the part and inhale, thereby drives pyroelectric infrared sensor and rotates, detects the heat source of standing still or vertically traveling.
Fig. 6A is a block diagram of a heat source detecting device including a driving unit according to an embodiment of the present invention, and the embodiment of the present invention is further optimized on the basis of the above embodiment, and may be combined with various alternatives in one or more embodiments. The heat source detection equipment also comprises a driving part; wherein:
the equipment also comprises a driving part for driving the mechanical displacement part to displace; the driving part and the mechanical displacement part are synchronously displaced through a transmission belt.
Taking a mechanical rotating part as an example, referring to fig. 6A, a driving part 200 is introduced, the driving part 200 is connected with the mechanical rotating part 111 through a transmission belt, and the driving part 200 drives the mechanical rotating part 111 to perform rotational adjustment between two detection angles.
As an alternative but non-limiting implementation manner, the driving component includes a motor, and the mechanical rotating component is driven to rotate between the two detection angles through forward and reverse rotation of the motor within a preset rotation angle.
As an alternative but non-limiting realization, the driving means further comprise a first gear and the corresponding mechanical rotation means further comprise a second gear, said conveyor belt comprising a toothed conveyor belt. The second gear is driven to rotate through the rotation of the first gear, so that the detection area of the pyroelectric infrared sensor is driven to rotate and adjust between two detection angles around the rotation central axis of the second gear.
As an optional but non-limiting implementation manner, the device further includes a first limit column and a second limit column that limit the mechanical displacement component to perform displacement; the first limiting column is arranged corresponding to the third end of the pyroelectric infrared sensor, and the second limiting column is arranged corresponding to the fourth end of the pyroelectric infrared sensor.
Taking the mechanical rotation component as an example, the limiting column for limiting the mechanical rotation component to rotate between two detection angles includes a first limiting column 211 and a second limiting column 212. The first limiting column is arranged corresponding to the third end of the pyroelectric infrared sensor, and the second limiting column is arranged corresponding to the fourth end of the pyroelectric infrared sensor, so that the rotation offset of the mechanical rotating part is limited. For example, when the driving member 200 rotates clockwise, the mechanical rotating member 111 drives the pyroelectric infrared sensor 120 to rotate clockwise, and the second limiting column 212 limits the pyroelectric infrared sensor to rotate continuously at the fourth end; when the driving part 200 rotates counterclockwise, the mechanical rotating part 111 drives the pyroelectric infrared sensor 120 to rotate counterclockwise, and the first limiting column 211 limits the continuous rotation of the third end of the pyroelectric infrared sensor. The rotation offset of the mechanical rotation component is limited through the first limiting column 211 and the second limiting column 212, so that the pyroelectric infrared sensor is limited to rotate between two detection angles.
Taking a mechanical translation component as an example, see fig. 6B, the mechanical translation component includes a translation component with a roller. When the driving part 200 rotates clockwise, the mechanical translation part 112 rotates clockwise, so as to drive the pyroelectric infrared sensor 120 to translate towards the second limiting column 212, and the second limiting column 212 limits the continuous translation of the fourth end of the pyroelectric infrared sensor; when the driving member 200 rotates counterclockwise, the mechanical translation member 112 rotates counterclockwise to drive the pyroelectric infrared sensor 120 to translate toward the first position-limiting post 211, and the first position-limiting post 211 limits the pyroelectric infrared sensor to translate continuously at the third end. The translation offset of the mechanical translation component is limited through the first limiting column 211 and the second limiting column 212, so that the pyroelectric infrared sensor is limited to translate within a preset detection distance range.
The utility model provides a heat source check out test set including fixed driver part, driver part pass through the conveyer belt and drive mechanical displacement part and carry out positive and negative rotation or translation motion to this drives pyroelectric infrared sensor and rotates between two detection angles or predetermines the detection distance within range, detects with the heat source to the stillness or vertically travel.
It should be noted that, in the embodiment of the apparatus, the included structures are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, the specific names of the functional structures are only for the convenience of distinguishing from each other, and are not used to limit the protection scope of the present invention. In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A heat source detecting apparatus, characterized in that the apparatus comprises: a pyroelectric infrared sensor, a mechanical displacement member and a lens; the mechanical displacement component is arranged on the first end side of the pyroelectric infrared sensor, the lens is arranged on the second end side of the pyroelectric infrared sensor, the pyroelectric infrared sensor is arranged on the mechanical displacement component, and the mechanical displacement component drives the detection area of the pyroelectric infrared sensor to perform displacement adjustment.
2. The apparatus of claim 1, wherein the mechanical displacement component comprises a mechanical rotation component and a mechanical translation component; the mechanical rotating component can rotate in two directions, and the detection area of the pyroelectric infrared sensor is rotationally adjusted between two detection angles around the rotation central axis of the mechanical rotating component; the mechanical translation component drives the pyroelectric infrared sensor to perform displacement adjustment within a preset distance range through translation.
3. The device of claim 1, further comprising a first magnetic attraction component and a second magnetic attraction component, wherein different magnetic attraction differences are alternately generated between the first magnetic attraction component and the second magnetic attraction component, a magnetic attraction force generated by the first magnetic attraction component acts on a third end of the pyroelectric infrared sensor, a magnetic attraction force generated by the second magnetic attraction component acts on a fourth end of the pyroelectric infrared sensor, and a connection line from the first end to the second end of the pyroelectric infrared sensor is perpendicular to a connection line from the third end to the fourth end of the pyroelectric infrared sensor.
4. The apparatus according to claim 3, wherein the pyroelectric infrared sensor is fixed on the mechanical displacement component through a bearing mounting plate, a first magnetic point component used in cooperation with the first magnetic attraction component and a second magnetic point component used in cooperation with the second magnetic attraction component are configured on the bearing mounting plate, and the first magnetic point component and the second magnetic point component are respectively located at a third end side and a fourth end side of the pyroelectric infrared sensor.
5. The device of claim 4, wherein a first end of the pyroelectric infrared sensor is fixedly connected to a first end of a supporting mounting plate, the mechanical displacement component is fixedly connected to a second end of the supporting mounting plate, a first magnetic point component used in cooperation with the first magnetic attraction component is installed at a third end of the supporting mounting plate, a second magnetic point component used in cooperation with the first magnetic attraction component is installed at a fourth end of the supporting mounting plate, a direction of a connecting line from the first end to the second end of the supporting mounting plate is perpendicular to a direction of a connecting line from the third end to the fourth end of the supporting mounting plate, and the first end and the second end of the supporting mounting plate are deviated in directions.
6. The apparatus of claim 2, wherein the mechanical rotating component comprises an axially rotatable bearing having a shaft axis coinciding with a rotational center axis of the mechanical rotating component.
7. The apparatus according to claim 3, wherein the first magnetic attraction member and the second magnetic attraction member are both electromagnetic attraction members with variable magnetic attraction, and magnetic attraction is generated between the first magnetic attraction member and the second magnetic attraction member alternately.
8. The apparatus of claim 3, wherein the first magnetic component is an electromagnetic component that can be variably magnetically attracted, the second magnetic component comprises a fixed magnetic component, and a magnetic attraction between the first magnetic component and the first magnetic point component is greater than a magnetic attraction between the second magnetic component and the second magnetic point component.
9. The apparatus according to claim 1, further comprising a driving member for driving the mechanical displacement member to displace; the driving member and the mechanical rotating member are displaced synchronously by a belt.
10. The apparatus of claim 9, further comprising a first restraint post and a second restraint post that limit the displacement of the mechanical displacement component; the first limiting column is arranged corresponding to the third end of the pyroelectric infrared sensor, and the second limiting column is arranged corresponding to the fourth end of the pyroelectric infrared sensor.
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| CN202222051780.5U CN217953691U (en) | 2022-08-02 | 2022-08-02 | Heat source detection equipment |
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| CN202222051780.5U CN217953691U (en) | 2022-08-02 | 2022-08-02 | Heat source detection equipment |
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| CN217953691U true CN217953691U (en) | 2022-12-02 |
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