CN107355959B - Detection device and air conditioner - Google Patents
Detection device and air conditioner Download PDFInfo
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- CN107355959B CN107355959B CN201710769037.4A CN201710769037A CN107355959B CN 107355959 B CN107355959 B CN 107355959B CN 201710769037 A CN201710769037 A CN 201710769037A CN 107355959 B CN107355959 B CN 107355959B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a detection device and an air conditioner, wherein the infrared detection device comprises a circuit board, and a control circuit is arranged on the circuit board; the infrared emission head and the receiving head are electrically connected with the control circuit; the bracket is provided with a first mounting hole corresponding to the transmitting head and a second mounting hole corresponding to the receiving head, the first mounting hole and the second mounting hole are blind holes, and the opening of the blind holes is opposite to the circuit board; the transmitting head is installed in the first installation hole, and the receiving head is installed in the second installation hole. The technical scheme of the invention is beneficial to improving the detection precision of the infrared detection device.
Description
Technical Field
The present invention relates to the field of air conditioning technologies, and in particular, to a detection apparatus and an air conditioner.
Background
Along with the improvement of the living standard of people, the intelligent requirements of people on the air conditioner are higher and higher. The air conditioner is intelligent, and the information acquisition is not needed, so that the requirement of the information acquisition device is higher and higher. The infrared detection device is an information acquisition device and comprises a transmitting head and a receiving head, and the phenomenon that the transmitting head directly transmits infrared rays to the receiving head frequently occurs because the receiving head receives the infrared rays and the transmitting head transmits the infrared rays, so that the result detected by the infrared detection device is inaccurate.
Disclosure of Invention
The invention mainly aims to provide an infrared detection device, which aims to improve the working accuracy of the detection device.
In order to achieve the above object, the present invention provides an infrared detection device, which includes:
the circuit board is provided with a control circuit;
the infrared emission head and the receiving head are electrically connected with the control circuit;
the bracket is provided with a first mounting hole corresponding to the transmitting head and a second mounting hole corresponding to the receiving head, the first mounting hole and the second mounting hole are blind holes, and the opening of the blind holes is opposite to the circuit board;
the transmitting head is installed in the first installation hole, and the receiving head is installed in the second installation hole.
Preferably, a first pin hole is formed in the bottom of the first mounting hole, and a pin of the transmitting head penetrates through the first pin hole to be connected with the circuit board;
and a second pin hole is formed in the bottom of the second mounting hole, and a pin of the receiving head penetrates through the second pin hole to be connected with the circuit board.
Preferably, sealing ribs are arranged between the transmitting head and the pins of the transmitting head, the sealing ribs are arranged along the circumferential direction of the transmitting head, and the sealing ribs are tightly matched with the first mounting holes.
Preferably, the number of the emitting heads is plural, and the plural emitting heads are arranged along the length direction of the circuit board;
the receiving heads are arranged in the middle of the circuit board and are positioned between the receiving heads.
Preferably, the number of the first mounting holes and the emission heads is plural;
the first mounting holes are arranged along the length direction of the support, and the first mounting holes are arranged in a radial mode on the support so that the emission heads are arranged in a radial mode.
Preferably, the bracket is arc-shaped, and the plurality of first mounting holes are arranged along the extending direction of the bracket.
Preferably, the infrared detection device further comprises a front shell and a rear cover matched with the front shell;
the front shell is provided with a mounting cavity, and the bracket and the circuit board are mounted in the mounting cavity; the side walls of the first mounting hole and the second mounting hole are transparent;
the rear cover is fixedly connected with the front shell so as to form a sealed mounting cavity with the front shell.
Preferably, the side walls of the mounting cavity facing the first mounting hole and the second mounting hole are light-transmitting decorative plates, and a first light-transmitting groove is formed in the position, corresponding to the first mounting hole, of each light-transmitting decorative plate; and/or the number of the groups of groups,
and a second light transmission groove is formed at a position corresponding to the second mounting hole.
Preferably, one end of the emitting head far away from the circuit board is abutted with the bottom of the first light-transmitting groove; and/or the number of the groups of groups,
one end of the receiving head, which is far away from the circuit board, is abutted with the bottom of the second light-transmitting groove.
Preferably, the side walls of the mounting cavity facing the first mounting hole and the second mounting hole are light-transmitting decorative plates;
the light-transmitting decorative plate is provided with a partition groove, and the partition groove is positioned between the second mounting hole and the adjacent first mounting hole and corresponds to the position of the light-transmitting decorative plate so as to block signals between the transmitting head and the receiving head from being transmitted in the light-transmitting decorative plate.
Preferably, the number of the partition grooves is plural, and the plural partition grooves are arranged side by side on the inner side or the outer side of the light-transmitting decorative plate.
Preferably, the number of the partition grooves is a plurality, and the plurality of the partition grooves are respectively arranged on the inner side and the outer side of the light-transmitting decorative plate;
the sum of the groove depths of the separation grooves respectively arranged on the inner side and the outer side of the light-transmitting decorative plate is larger than or equal to the thickness of the light-transmitting decorative plate.
The invention further provides an air conditioner, which comprises an infrared detection device, wherein the infrared detection device comprises:
the circuit board is provided with a control circuit;
the infrared emission head and the receiving head are electrically connected with the control circuit;
the bracket is provided with a first mounting hole corresponding to the transmitting head and a second mounting hole corresponding to the receiving head, the first mounting hole and the second mounting hole are blind holes, and the opening of the blind holes is opposite to the circuit board;
the transmitting head is installed in the first installation hole, and the receiving head is installed in the second installation hole.
Preferably, the air conditioner is a cross-flow cabinet air conditioner, the indoor unit of the cross-flow cabinet air conditioner comprises a shell, the shell is in a columnar arrangement, an air outlet of the indoor unit is arranged along the height direction of the shell, and the detection decoration is arranged in the air outlet.
According to the technical scheme, the infrared transmitting head is arranged in the first mounting hole, the infrared receiving head is arranged in the second mounting hole, and the first mounting hole and the second mounting hole are both blind holes, so that external signals cannot enter from the bottom of the blind holes, signal interference of external information on the infrared transmitting head and the receiving head is greatly prevented, and the operation of the infrared transmitting head and the receiving head is more stable and accurate; meanwhile, through the arrangement of the first mounting hole and the second mounting hole, signals between the infrared emission head and the infrared receiving head cannot be directly transmitted, and the signals can be transmitted only by reflection of an external object, so that the phenomenon of signal mistransmission is avoided, the phenomenon of misoperation is also avoided, and the detection accuracy of the infrared detection device is improved; meanwhile, as the infrared emission head and the receiving head are arranged in the blind hole, the installation of the infrared emission head and the receiving head is more stable and reliable compared with the installation on a circuit board, thereby being beneficial to improving the installation stability of the infrared emission head and the receiving head and being beneficial to the stable work of the infrared emission head and the receiving head; particularly, the transmitting head and the receiving head are arranged in the blind hole, so that the transmitting head and the receiving head are closer to the light-transmitting decorative plate, the distance between the infrared transmitting head and the measured object is shortened, the infrared light is attenuated less in the transmission process, and the transmitting head is favorable for transmitting infrared light; similarly, the distance between the infrared receiving head and the measured object is shortened, and the attenuation of the infrared light when the infrared light is reflected back is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of a cabinet air conditioner of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of the detecting device of the present invention;
FIG. 3 is a schematic structural diagram of another embodiment of the detecting device of the present invention;
FIG. 4 is a schematic structural view of a detecting device according to another embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of the structure M-M in FIG. 4;
FIG. 6 is an enlarged view of a portion of FIG. 5 at A;
FIG. 7 is a partial enlarged view at B in FIG. 5;
FIG. 8 is a schematic view of the structure of the front and rear covers of the present invention;
fig. 9 is a schematic structural view of the bracket.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The specific structure of the infrared detection device will be mainly described below. It should be noted that, in order to avoid repeating the description of the same feature for a plurality of times, the features in the following embodiments may be applied to and may be organically combined with other embodiments, and it should be understood that the description has provided an embodiment in which the feature is applied to other embodiments.
Referring to fig. 1 to 9, in an embodiment of the present invention, the infrared detection device 500 includes:
a circuit board 540, wherein the circuit board 540 is provided with a control circuit;
a transmitting head 550 and a receiving head 560, the transmitting head 550 and the receiving head 560 being electrically connected to the control circuit;
the bracket 530 is provided with a first mounting hole 531 corresponding to the emitter head 550, and a second mounting hole 532 corresponding to the receiver head 560, wherein the first mounting hole 531 and/or the second mounting hole 532 are blind holes, and the opening of the blind holes is opposite to the circuit board 540;
the emitting head 550 is mounted in the first mounting hole 531, and the receiving head 560 is mounted in the second mounting hole 532.
Specifically, in the present embodiment, the circuit board 540 has a control circuit thereon, and the shape of the circuit board 540 may be various, for example, square, rectangular, circular, elliptical, etc., and is not particularly limited herein. The shape of the infrared emission head 550 and the receiving head 560 is not particularly limited, and the infrared emission head 550 is exemplified by a long cylindrical shape, and the receiving head 560 is exemplified by a rectangular parallelepiped shape. The shape of the support 530 may be varied, such as elongated, circular, square, oval, etc. The first and second mounting holes 531 and 532 are arranged along a length square of the bracket 530, and the first and second mounting holes 531 and 532 are opened along a height direction of the bracket 530. The shape of the first mounting hole 531 is adapted to the infrared emission head 550 so that the infrared emission head 550 can be mounted in the first mounting hole 531. The shape of the second mounting hole 532 is adapted to the shape of the receiving head 560 so that the infrared receiving head 560 can be mounted in the second mounting hole 532.
The number of the infrared emitting heads 550 may be many, and all the infrared emitting heads 550 may be arranged along the length of the circuit board 540, or the number of the infrared receiving heads 560 may be many, in this embodiment, one infrared emitting head is taken as an example. There may be many positional relationships between the infrared receiving heads 560 and the plurality of infrared emitting heads 550, for example, the infrared emitting heads 550 may be arranged randomly among the infrared emitting heads 550, taking the number of the infrared emitting heads 550 on both sides of the infrared receiving heads 560 as an example. Of course, the number of the first mounting holes 531 on the bracket 530 is comparable to the number of the infrared emission heads 550, so that each of the infrared emission heads 550 can be mounted into the first mounting hole 531. Similarly, the number of second mounting holes 532 on the bracket 530 is comparable to the number of infrared receiving heads 560, such that each infrared receiving head 560 can be mounted into a second mounting hole 532.
Since the first mounting hole 531 and the second mounting hole 532 are blind holes, light and signals cannot pass through the bottom of the blind holes and enter the first mounting hole 531 and the second mounting hole 532, so that the transmitting head 550 and the receiving head 560 cannot be interfered by signals from the bottom of the blind holes, and external signals are effectively prevented from interfering with signal transmission of the transmitting head 550 and signal reception of the receiving head 560.
In this embodiment, by installing the infrared emission head 550 in the first installation hole 531, installing the infrared receiving head 560 in the second installation hole 532, and setting the first installation hole 531 and the second installation hole 532 as blind holes, external signals cannot enter from the bottom of the blind holes, so that signal interference of external information on the infrared emission head 550 and the receiving head 560 is greatly blocked, and the operation of the emission head 550 and the receiving head 560 is more stable and accurate; meanwhile, by the arrangement of the first mounting holes 531 and the second mounting holes 532, signals between the infrared emission head 550 and the infrared receiving head 560 cannot be directly transmitted, but can be transmitted only by reflection of an external object, so that the phenomenon of signal mistransmission is avoided, the phenomenon of misoperation is avoided, and the detection accuracy of the infrared detection device 500 is improved; meanwhile, as the infrared emission head 550 and the receiving head 560 are arranged in the blind holes, the installation of the emission head 550 and the receiving head 560 is more stable and reliable than the installation of the emission head 550 and the receiving head 560 on the circuit board 540, which is beneficial to improving the installation stability of the emission head 550 and the receiving head 560 and facilitating the stable work thereof; particularly, the transmitting head 550 and the receiving head 560 are arranged in the blind holes, so that the transmitting head 550 and the receiving head 560 are closer to the light-transmitting decorative plate, the distance between the transmitting head 550 and the measured object is shortened, and the infrared light is attenuated less in the transmission process, so that the transmitting head 550 is beneficial to transmitting infrared light; similarly, the distance between the infrared receiving head 560 and the measured object is shortened, and the attenuation of the infrared light reflected back is reduced.
In order to improve the mounting of the pins of the transmitting head 550 and the receiving head 560, a first pin hole 537 is formed at the bottom of the first mounting hole 531, and the pins of the transmitting head 550 are connected to the circuit board 540 through the first pin hole 537; a second pin hole is formed at the bottom of the second mounting hole 532, and a pin of the receiving head 560 passes through the second pin hole to be connected with the circuit board 540. In this embodiment, the diameter of the first pin hole 537 is equal to the diameter of the pin of the emitter head 550, and the pin of the emitter head 550 passes through the first pin hole 537 to be connected with the circuit board 540; the second pin hole has a diameter corresponding to the diameter of the pin of the receiving head 560, and the pin of the receiving head 560 is connected to the circuit board 540 through the second pin hole. Through the arrangement of the first pin hole 537 and the second pin hole, the pins of the transmitting head 550 and the receiving head 560 can directly penetrate through the first pin hole 537 and the second pin hole to be connected with the circuit board 540, so that the transmitting head 550 and the receiving head are very convenient to install, and the structure of the infrared detection device 500 is very compact.
For example, the accuracy of infrared detection is improved, interference of external light is avoided, sealing ribs 551 are arranged between the emitting head 550 and pins thereof, the sealing ribs 551 are arranged along the circumferential direction of the emitting head 550, and the sealing ribs 551 are tightly matched with the first mounting holes 531. The sealing rib 551 is arranged at one end of the infrared emission head 550 close to the pin, and the sealing rib 551 is arranged around the end of the infrared emission head 550. When the infrared emission head 550 is installed in the first installation hole 531, the outer side wall of the sealing rib 551 is attached to the inner wall of the first installation hole 531, so that light is prevented from entering the first installation hole 531 from a gap between the infrared emission head 550 and the first installation hole 531, and the accuracy of the emission of the infrared emission head 550 is improved.
In order to improve the efficiency and accuracy of infrared detection, the number of the emitting heads 550 is plural, and the plurality of the emitting heads 550 are arranged along the length direction of the circuit board 540; the receiving heads 560 are disposed at the middle of the circuit board 540 and between the receiving heads 560. Through arranging a plurality of transmitting heads 550 along the length direction of the circuit board 540, the range detected by the transmitting heads 550 is greatly improved, so that the omission of objects to be detected is avoided, the detection comprehensiveness of the infrared detection device 500 is improved, and the detection precision is improved.
In order to further increase the detection range, the number of the first mounting holes 531 and the emission heads 550 is plural; the first mounting holes 531 are arranged along the length direction of the support 530, and the first mounting holes 531 are arranged radially on the support 530, so that the emission heads 550 are arranged radially. The radial arrangement of the first mounting holes 531 means that the plurality of first mounting holes 531 are arranged on the same circular arc such that the hole depth directions of the adjacent first mounting holes 531 are different. When the emitting heads 550 are arranged radially, the detecting signals emitted by the plurality of emitting heads 550 are cambered surfaces, so as to greatly increase the detecting range. In some embodiments, in order to better implement the radial arrangement of the first mounting holes 531, the support 530 is disposed in an arc shape, and a plurality of the first mounting holes 531 are arranged along the extending direction of the support 530.
To further improve the detection accuracy, the infrared detection device 500 further includes a front case 510 and a rear cover 570 adapted to the front case 510; the front case 510 has a mounting cavity in which the supporter 530 and the circuit board 540 are mounted; the sidewalls of the first and second mounting holes 531 and 532 are transparent; the rear cover 570 is fixedly connected with the front case 510 to form a sealed mounting cavity with the front case 510. In the present embodiment, there may be many forms of the front case 510 and the rear cover 570, wherein the front case 510 is exemplified as the arc-shaped case 100 and the rear cover 570 is exemplified as the plate-shaped case. There are many ways to detachably mount the bracket 530 and the circuit board 540 in the mounting cavity, such as snap-fit, screw-fit, adhesive-fit, etc. Through the cooperation of the front shell 510 and the rear cover 570, a sealed mounting cavity is formed, so that moisture, light and air flow in the external environment cannot influence the work of the transmitting head 550 and the receiving head 560, thereby being beneficial to improving the working stability of the transmitting head 550 and the receiving head 560, and further effectively improving the detection precision.
In order to further improve the detection precision, the side walls of the mounting cavities facing the first mounting holes 531 and the second mounting holes 532 are light-transmitting decorative plates, and a first light-transmitting groove is formed in the position of the light-transmitting decorative plates corresponding to the first mounting holes 531; and/or a second light-transmitting groove is formed at a position corresponding to the second mounting hole 532. The color of the light-transmitting decorative board may be set according to more practical requirements, for example, when the detecting device 500 is an infrared detecting device 500, the color of the light-transmitting decorative board may be dark red. Through the setting of printing opacity groove for boss 521 on the sealed pad 520 can install in the printing opacity groove, makes sealed pad 520 shelter from the cell wall in printing opacity groove, thereby, avoid the signal to transmit along the printing opacity decorative board, and lead to receiving head 560 to receive by mistake. Therefore, signal interference is effectively reduced, and the infrared detection accuracy is improved.
To improve the detection precision, an end of the emitter 550 away from the circuit board 540 is abutted with the bottom of the first light-transmitting groove; and/or, an end of the receiving head 560 away from the circuit board 540 is abutted with a bottom of the second light-transmitting groove. In this embodiment, the transmitting head 550 and the receiving head 560 are disposed in the blind hole, so that the transmitting head 550 and the receiving head 560 are closer to the light-transmitting decorative board, the distance between the transmitting head 550 and the measured object is shortened, and the infrared light is attenuated less in the transmission process, so that the transmitting head 550 is facilitated to transmit the infrared light; similarly, the distance between the infrared receiving head 560 and the measured object is shortened, and the attenuation of the infrared light reflected back is reduced. In some embodiments, in order to better improve the infrared emission effect, the infrared emission head 550 is abutted to the bottom of the first light-transmitting groove, so that the stroke of the infrared light is further shortened; similarly, the infrared receiving head 560 is abutted against the bottom of the second light-transmitting groove, so that the distance between the measured object and the receiving head 560 is shortened, and the attenuation of signals is reduced.
In order to further improve the detection accuracy, the side walls of the mounting cavities facing the first mounting holes 531 and the second mounting holes 532 are light-transmitting decorative boards; the light-transmitting decorative plate is provided with a separation groove 511, and the separation groove 511 is located between the second mounting hole 532 and the adjacent first mounting hole 531 and corresponds to the light-transmitting decorative plate, so as to prevent signals between the transmitting head 550 and the receiving head 560 from being transmitted in the light-transmitting decorative plate. The partition groove 511 is provided on an inner side wall and/or an outer side wall of the light-transmitting decorative plate, and the partition groove 511 extends in a width direction of the light-transmitting decorative plate. By the arrangement of the isolation groove 511, signals cannot be transmitted from the area corresponding to the transmitting head 550 to the area corresponding to the receiving head 560, so that signal transmission in the light-transmitting decorative board is blocked. Thus, the signal is prevented from being transmitted along the light-transmitting decorative plate, and the receiving head 560 is prevented from receiving by mistake. And further effectively reduces signal interference and is beneficial to improving the accuracy of infrared detection.
In order to further improve the blocking effect and to improve the detection accuracy, the number of the blocking grooves 511 is plural, and the blocking grooves 511 are arranged in parallel on the inner side or the outer side of the light-transmitting decorative plate. The plurality of the partition grooves 511 is provided, and the plurality of the partition grooves 511 attenuate infrared light, respectively, thereby further improving the attenuation effect. The partition groove 511 may be provided on the inner side and/or the outer side of the light-transmitting decorative panel according to actual needs.
In some embodiments, in order to further improve the blocking effect, the number of the blocking grooves 511 is plural, and the blocking grooves 511 are respectively disposed at the inner side and the outer side of the light-transmitting decorative plate; the sum of the groove depths of the partition grooves 511 provided at the inner and outer sides of the light-transmitting decorative plate, respectively, is greater than or equal to the thickness of the light-transmitting decorative plate. Through setting up the separation groove 511 in inboard and outside simultaneously to the sum of the groove depth of the separation groove 511 in inboard and outside is greater than the thickness of printing opacity decorative board, makes the signal of transmission in the printing opacity decorative board, must be cut off, thereby effectually ensured that the signal can not pass in infrared decorative board, is favorable to further improving the separation effect, in order to improve detection precision.
In order to further improve the detection accuracy, the detection device 500 further includes a sealing pad 520, and the sealing pad 520 is provided with an avoidance hole 523 corresponding to the first mounting hole 531 and the second mounting hole 532; the gasket 520 is disposed at a side of the bracket 530 facing away from the circuit board 540 to seal the peripheral edges of the first and second mounting holes 531 and 532, and the gasket 520 is detachably connected to the bracket 530. The sealing gasket 520 is in a sheet-shaped arrangement, and the sealing gasket 520 is attached to the support 530, so that light cannot enter from the first mounting hole 531 and the second mounting hole 532 away from the hole opening of the circuit board 540, and thus the light is prevented from affecting the operation of the transmitting head 550 and the receiving head 560 from the front, and the accuracy of signal transmission and reception is effectively improved.
In some embodiments, in order to improve the mounting stability of the gasket 520, a limit flange 535 is disposed on the periphery of the side of the support 530 facing away from the circuit board 540, where the limit flange 535 encloses to form a mounting groove 536, and the gasket 520 is tightly matched with the mounting groove 536. The limit flange 535 is formed in an annular shape, and the openings of the first mounting hole 531 and the second mounting hole 532 are formed in the region thereof by the arrangement of the limit flange 535. When the gasket 520 is mounted on the bracket 530, the limit flaps 535 define the position of the gasket 520, thereby increasing the stability of the gasket 520.
In order to further improve stability of the sealing gasket 520, a limiting leg 522 is disposed on a side of the sealing gasket 520 facing the support 530, and a fixing hole 533 is formed on the support 530 corresponding to the limiting leg 522; the limiting leg 522 is tightly fitted to the fixing hole 533. The shape of the limiting legs 522 may be varied, for example, a columnar configuration. The number of the limiting legs 522 may be plural, for example, two limiting legs 522 are respectively inserted into the fixing holes 533 of the support 530, so that the gasket 520 is very stably mounted on the support 530.
In order to improve the detection precision, a side of the first mounting hole 531 opposite to the circuit board 540 is provided with a limiting rib 534 along the periphery of the first mounting hole 531, and the avoidance hole 523 is sleeved on the limiting rib 534. Through the setting of protruding muscle, protruding muscle separates the sealing strip outside first mounting hole 531 and second mounting hole 532, avoids having elastic sealed pad 520 to cover up the drill way of first mounting hole 531 and second mounting hole 532 to make emitter 550 can effectually go out the signal reflection, simultaneously, also guarantee that receiver 560 can receive the signal in a larger scale, thereby be favorable to improving the precision. In addition, through the arrangement of the convex ribs, the avoiding holes 523 are sleeved on the convex ribs, so that the sealing gasket 520 is limited, namely, the stability of the sealing gasket 520 in the detection device 500 is improved.
In order to further improve the detection accuracy of the detection device 500, a boss 521 is disposed on the sealing pad 520 opposite to the support 530, and the boss 521 is disposed corresponding to the avoidance hole 523, so that the hole depth of the avoidance hole 523 is greater than the thickness of the sealing pad 520. Through the arrangement of the boss 521, the thickness of the sealing gasket 520 at the boss 521 is larger than the thickness of other positions of the sealing gasket 520, so that the sealing gasket 520 corresponding to the avoiding hole 523 can block the influence of light rays in a large range (along the hole depth direction). At the same time, the signal of the transmitting head 550 is prevented from being transmitted to the corresponding escape hole 523 of the receiving head 560 through the surface of the sealing pad 520 and then entering the receiving head 560. Thereby greatly reducing the possibility of erroneous reception of signals and improving the detection accuracy of the detection device 500.
The invention also provides an air conditioner, which comprises a shell 100 and a detection device 500, wherein the specific structure of the detection device 500 refers to the above embodiment, and because the air conditioner adopts all the technical schemes of all the embodiments, the air conditioner at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein. The casing 100 is specifically an air outlet 110, and the infrared detection device 500 is disposed in the middle of the air outlet 110.
The air conditioner is a cross-flow cabinet air conditioner, the indoor unit of the cross-flow cabinet air conditioner comprises a shell 100, the shell 100 is in a columnar arrangement, an air outlet 110 of the indoor unit is arranged along the height direction of the shell 100, and the detection decoration is arranged in the air outlet 110. The indoor unit of the air conditioner comprises an upper air guide assembly and a lower air guide assembly, and the upper air guide assembly and the lower air guide assembly are arranged corresponding to the air outlet 110; the infrared detection decoration is arranged between the upper air guide assembly and the lower air guide assembly. The upper wind guide component is an upper wind guide component without wind sense, and/or the lower wind guide component is a lower wind guide component without wind sense.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (11)
1. A detection apparatus, characterized by comprising:
the circuit board is provided with a control circuit;
the infrared emission head and the receiving head are electrically connected with the control circuit;
the bracket is provided with a first mounting hole corresponding to the transmitting head and a second mounting hole corresponding to the receiving head, the first mounting hole and/or the second mounting hole are blind holes, and the opening of the blind holes is opposite to the circuit board;
the transmitting head is arranged in the first mounting hole, and the receiving head is arranged in the second mounting hole;
a first pin hole is formed in the bottom of the first mounting hole, and a pin of the transmitting head penetrates through the first pin hole to be connected with the circuit board;
a second pin hole is formed in the bottom of the second mounting hole, and a pin of the receiving head penetrates through the second pin hole to be connected with the circuit board; sealing ribs are arranged between the transmitting head and the pins of the transmitting head, the sealing ribs are arranged along the circumferential direction of the transmitting head, and the sealing ribs are tightly matched with the first mounting holes;
the detection device further comprises a front shell and a rear cover matched with the front shell; the front shell is provided with an installation cavity, and the side walls of the first installation hole and the second installation hole, which face each other, are transparent; the side walls of the mounting cavities facing the first mounting holes and the second mounting holes are light-transmitting decorative plates; the light-transmitting decorative plate is provided with a partition groove, and the partition groove is positioned between the second mounting hole and the adjacent first mounting hole and corresponds to the position of the light-transmitting decorative plate so as to block signals between the transmitting head and the receiving head from being transmitted in the light-transmitting decorative plate.
2. The inspection apparatus according to claim 1, wherein the number of the emission heads is plural, and the plural emission heads are arranged in a length direction of the circuit board;
the receiving heads are arranged in the middle of the circuit board and are positioned between the receiving heads.
3. The detecting device according to claim 1, wherein the number of the first mounting holes and the emitting heads is plural;
the first mounting holes are arranged along the length direction of the support, and the first mounting holes are arranged in a radial mode on the support so that the emission heads are arranged in a radial mode.
4. The detecting device for detecting the rotation of a motor rotor as claimed in claim 3, wherein said supporting frame is provided in an arc shape, and a plurality of said first mounting holes are arranged along the extending direction of said supporting frame.
5. The detecting device according to any one of claims 1 to 4, wherein,
the bracket and the circuit board are arranged in the mounting cavity; the rear cover is fixedly connected with the front shell so as to form a sealed mounting cavity with the front shell.
6. The detecting device according to claim 5, wherein the side walls of the mounting cavity facing the first mounting hole and the second mounting hole are light-transmitting decorative plates, and a first light-transmitting groove is formed in the position of the light-transmitting decorative plates corresponding to the first mounting hole; and/or the number of the groups of groups,
and a second light transmission groove is formed at a position corresponding to the second mounting hole.
7. The detecting device for detecting the rotation of a motor rotor as claimed in claim 6, wherein an end of said emitter head which is away from said circuit board is abutted against a bottom of said first light-transmitting groove; and/or the number of the groups of groups,
one end of the receiving head, which is far away from the circuit board, is abutted with the bottom of the second light-transmitting groove.
8. The detecting device according to claim 1, wherein the number of the partition grooves is plural, and the plural partition grooves are arranged side by side inside or outside the light-transmitting decorative plate.
9. The detecting device according to claim 1, wherein the number of the partition grooves is plural, and the plural partition grooves are provided on the inner side and the outer side of the light-transmitting decorative plate, respectively;
the sum of the groove depths of the separation grooves respectively arranged on the inner side and the outer side of the light-transmitting decorative plate is larger than or equal to the thickness of the light-transmitting decorative plate.
10. An air conditioner comprising the detecting device according to any one of claims 1 to 9.
11. The air conditioner of claim 10, wherein the air conditioner is a cabinet air conditioner, the indoor unit of the cabinet air conditioner comprises a shell, the shell is in a column shape, the air outlet of the indoor unit is arranged along the height direction of the shell, and the detection device is arranged in the air outlet.
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| CN201710769037.4A CN107355959B (en) | 2017-08-30 | 2017-08-30 | Detection device and air conditioner |
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| CN201710769037.4A CN107355959B (en) | 2017-08-30 | 2017-08-30 | Detection device and air conditioner |
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| CN107355959A CN107355959A (en) | 2017-11-17 |
| CN107355959B true CN107355959B (en) | 2023-07-28 |
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| Publication number | Publication date |
|---|---|
| CN107355959A (en) | 2017-11-17 |
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