CN212777910U - Non-contact control type gas water heater - Google Patents

Abstract

The utility model discloses a formula gas heater is controlled in non-contact, include: the water pump comprises a machine body, a water pump body and a water pump body, wherein the machine body is provided with a water inlet and a water outlet; the heating device is arranged on the machine body; the water pump is arranged between the water inlet and the water outlet; contactless optics display controller, contactless optics display controller links to each other with the organism, and contactless optics display controller is connected with heating device and water pump respectively, and contactless optics display controller includes: the device comprises an equivalent negative refractive index optical element, a display and an optical sensor, wherein the display is arranged on one side of the equivalent negative refractive index optical element, a floating real image opposite to the display is formed on the other side of the equivalent negative refractive index optical element, the optical sensor is used for detecting the operation of a user on the floating real image, and the optical sensor is used for feeding back a detected operation signal to a controller host. From this, can reduce the degree of difficulty of controlling gas heater, reduce unexpected risks such as scald and electric shock simultaneously.

Description

Non-contact control type gas water heater

Technical Field

The utility model belongs to the technical field of gas heater technique and specifically relates to a formula gas heater is controlled in non-contact is related to.

Background

In the correlation technique, when controlling the gas heater, need press the entity button on the gas heater, it is great to control the degree of difficulty, and has unexpected risks such as scald or electric shock.

SUMMERY OF THE UTILITY MODEL

The utility model provides a formula gas heater is controlled to non-contact, formula gas heater is controlled to non-contact has easily to control and contactless, advantage that the security performance is high.

According to the utility model discloses formula gas heater is controlled in non-contact, include: a body having a water inlet and a water outlet; the heating device is arranged on the machine body; the water pump is arranged between the water inlet and the water outlet; a contactless optical display controller, the contactless optical display controller is connected with the machine body, the contactless optical display controller is respectively connected with the heating device and the water pump, the contactless optical display controller comprises: the optical sensor is used for detecting the operation of a user on the floating real image, and the optical sensor is used for feeding back a detected operation signal to the controller host.

According to the utility model discloses formula gas heater is controlled in non-contact through setting up contactless optics display controller, can make dispersed light assemble the real image again at another side same position through equivalent negative refractive index optical element, and the position of like is in the air, for example: can present the temperature information that detects and control heating device's button on floating the sky real image, the user can control heating device through the virtual button that floats the sky, can reduce the degree of difficulty of controlling gas heater from this, reduces unexpected risks such as scald or electric shock simultaneously, promotes the security of using.

According to some embodiments of the present invention, the outer wall of the body has a mounting groove, and the contactless optical display controller is provided in the mounting groove.

According to some embodiments of the present invention, the mounting groove has a fastening hole on its inner wall, and the contactless optical display controller has a fastening hook on its outer wall, the fastening hook being engaged with the fastening hole.

According to some embodiments of the invention, the equivalent negative refractive index optical element comprises: the optical waveguide array comprises a first optical waveguide array and a second optical waveguide array which are formed by laminating a plurality of reflecting units, wherein the first optical waveguide array and the second optical waveguide array are tightly attached to each other on the same plane and are orthogonally arranged.

According to some embodiments of the present invention, the cross section of the reflection unit is rectangular, and the reflection film is provided on the same side or both sides of the stacking direction of the reflection unit.

According to some embodiments of the invention, the reflective element cross-sectional width and length are a and b, respectively, and satisfy: a is more than 0.2mm and less than 5mm, and b is more than 0.2mm and less than 5 mm.

According to some embodiments of the invention, the first optical waveguide array or the second optical waveguide array is composed of a plurality of parallel arranged reflection units arranged obliquely at 45 °.

According to some embodiments of the present invention, the first optical waveguide array and the second optical waveguide array are orthogonal to each other in a waveguide direction of a portion corresponding to each other, and the first optical waveguide array and the second optical waveguide array are orthogonally arranged.

According to some embodiments of the present invention, the equivalent negative refractive index optical element further comprises two transparent substrates, the first optical waveguide array and the second optical waveguide array are disposed between the two transparent substrates.

According to some embodiments of the present invention, the equivalent negative refractive index optical element further comprises an anti-reflection part and a viewing angle control part, the anti-reflection part and the viewing angle control part being disposed between the first optical waveguide array and the second optical waveguide array; or the anti-reflection component and the visual angle control component are arranged between the transparent substrate and the first optical waveguide array; or the antireflection member and the viewing angle control member are disposed between the transparent substrate and the second optical waveguide array.

According to some embodiments of the present invention, the first optical waveguide array and between the second optical waveguide array, the first optical waveguide array and adjacent between the transparent substrate, and the second optical waveguide array and adjacent all be provided with photosensitive glue between the transparent substrate.

According to some embodiments of the invention, the contactless optical display controller further comprises: the total reflector is arranged on one side of the equivalent negative refractive index optical element and arranged on the same side of the display so as to reflect light rays emitted by the display to the equivalent negative refractive index optical element.

According to some embodiments of the invention, the equivalent negative refractive index optical element comprises: a retro-reflector and a beam splitter, the retro-reflector and the display being located on a same side of the beam splitter and the beam splitter reflecting light from the display to the retro-reflector, the beam splitter transmitting light from the retro-reflector.

According to some embodiments of the invention, a surface of the retro reflector is provided with 1/4 wave plates.

According to some embodiments of the utility model, optical sensor is far and near infrared sensor, ultrasonic sensor, laser interference sensor, grating sensor, encoder, optic fibre formula sensor or CCD sensor.

According to some embodiments of the utility model, the formula gas heater is controlled in non-contact still includes: the detection device is arranged on a water path between the water inlet and the water outlet and is connected with the non-contact optical display controller.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic structural diagram of a gas water heater according to an embodiment of the present invention;

fig. 2 is a control system block diagram of a contactless optical display controller according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a contactless optical display controller according to a first embodiment of the present invention;

fig. 4 is a schematic diagram of a human-computer interaction structure of a contactless optical display controller according to a first embodiment of the present invention;

fig. 5 is a schematic structural diagram of a flat lens according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a first optical waveguide array and a second optical waveguide array according to an embodiment of the present invention;

fig. 7 is a schematic front view of a flat lens according to an embodiment of the present invention in the thickness direction;

fig. 8 is a schematic partial structural view of a first optical waveguide array and a second optical waveguide array according to an embodiment of the present invention;

fig. 9 is a schematic optical path diagram of a flat lens according to an embodiment of the present invention;

fig. 10 is an internal optical path schematic diagram of a plate lens according to an embodiment of the present invention;

fig. 11 is an imaging schematic diagram of a flat lens according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a contactless optical display controller with the addition of a total reflection mirror according to a second embodiment of the present invention;

fig. 13 is a schematic structural diagram of a contactless optical display controller according to a third embodiment of the present invention.

Reference numerals:

a gas water heater 1000 is provided with a water tank,

a contactless optical display controller 100 is provided that,

a flat lens 1, a display 2, an optical sensor 3, a floating real image 4, a controller host 5,

a first optical waveguide array 6, a second optical waveguide array 7, a transparent substrate 8,

a reflection unit 9, a reflection film 10, a photosensitive adhesive 11,

total reflection mirror 12, virtual image 13, retro-reflector 14, beam splitter 15, 1/4 wave plate 16,

a machine body 200, a water inlet 201, a water outlet 202, a heating device 300,

water pump 400, detection device 500.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

[ first embodiment ] A method for manufacturing a semiconductor device

A non-contact operated gas water heater 1000 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1, according to the utility model discloses non-contact control formula gas heater 1000 includes: the body 200, the heating device 300, the water pump 400 and the contactless optical display controller 100, of course, the contactless control type gas water heater 1000 may further include: a water return valve.

Specifically, as shown in fig. 1, the body 200 has an inlet 201 and an outlet 202. The controller includes: the heating device 300, the water pump 400, the water switch, the contactless optical display controller 100, and the detection device 500. The heating device 300 is disposed on the body 200, and the water pump 400 is disposed between the water inlet 201 and the water outlet 202, and preferably, the water pump 400 is disposed adjacent to the water inlet 201. The water return valves are respectively connected with the water inlet 201 and the water outlet 202 to construct a circulation waterway. The water switch has a first outlet, which is connected to or disconnected from at least one of the water inlet 201 and the water outlet 202, i.e., the first outlet is connected to the water inlet 201 and disconnected from the water outlet 202; or, the first outlet is communicated with the water outlet 202 and disconnected with the water inlet 201; alternatively, the first outlet is in communication with the water inlet 201 and the water outlet 202, respectively.

The contactless optical display controller 100 is connected to the body 200, wherein the contactless optical display controller 100 may be disposed at a position on the body 200 that can be seen by a user, and the connection with the body 200 may be in various manners, such as a direct connection manner or an indirect connection manner, for example, it may be adhered to the body 200, and further, it may be embedded in the body 200, and further, for example, a spacer may be disposed between it and the body 200, that is, the contactless optical display controller 100 is mounted on the spacer, and the spacer is mounted on the body 200, so that the contactless optical display controller 100 and the spacer may be mounted first, and then the spacer and the body 200 are mounted, thereby ensuring the mounting reliability of the contactless optical display controller 100.

Fig. 2 is a block diagram of a control system of the non-contact operation type gas water heater 1000. The contactless optical display controller 100 is connected with the heating device 300, the water pump 400 and the detection device 500 through a controller host 5, and the contactless optical display controller 100 is provided with the controller host 5, the optical sensor 3 and the display 2. And also includes the drive circuit and relevant input/output interface of these devices, which are omitted from the figure.

The water pump 400 is arranged between the water inlet and the water outlet and used for driving water circulation or pressurizing other water devices such as a shower head and the like. The heating device 300 heats water in the pipe by heat exchange, and includes a burner, a heat exchanger, and a fan.

The detection device 500 is arranged in a water path between the water inlet and the water outlet and used for detecting water temperature information or detecting whether each function of heating, the water pump 400 and the like is normal or not, if the detection device 500 detects the water temperature information in the pipe and transmits the water temperature information to the controller host 5, the controller host 5 compares the temperature information with the temperature set by a user, and then sends a control signal to the heating device 300, so that the water in the water storage cavity is heated or stopped, or if the heating or the water pump 400 is detected to be abnormal in function, the detection device 500 transmits the signal to the controller host 5, so that the controller host 5 sends an alarm signal, and each function is suspended to inform maintenance.

The optical sensor 3 periodically detects the interactive operation of the user, including clicking, sliding, etc., and transmits the interactive information to the controller host 5, and the controller host 5 judges the specific operation content of the user, such as setting temperature, mode setting, etc., according to the internal instruction set, and controls the heating device 300 and the water pump 400 to perform the heating or pressurizing step. And simultaneously, the UI operation interfaces such as related control buttons and settings are transmitted to the display 2 for image display.

In addition, the controller host 5 may be directly integrated with the display 2 or placed outside the contactless optical display controller 100. The control instruction content may also be transmitted to an external device (not shown) for processing or controlling the external device, such as controlling water inlet and outlet or power off.

As shown in fig. 3 and 4, the contactless optical display controller 100 further includes: the optical element with the equivalent negative refractive index comprises a flat lens 1, wherein the flat lens 1 comprises a first optical waveguide array 6 and a second optical waveguide array 7 which are formed by laminating a plurality of reflecting units 9, the first optical waveguide array 6 and the second optical waveguide array 7 are tightly attached to the same plane and are orthogonally arranged, a display 2 is placed on one side of the flat lens 1, and a floating real image 4 opposite to the display 2 is formed on the other side of the flat lens 1; the optical sensor 3 is used for detecting the operation of the user on the floating real image 4, and the optical sensor 3 is used for feeding back the detected operation signal to the controller host 5.

Specifically, the contactless optical display controller 100 may present the temperature information detected by the detection device 500 and the virtual buttons for controlling the heating device 300 on the floating real image 4, and the user may control the heating device 300 through the floating virtual buttons. Therefore, the difficulty of controlling the gas water heater 1000 can be reduced, risks such as scalding or accidental electric shock are reduced, and safety is higher.

As shown in fig. 5 and 6, the flat lens 1 includes two transparent substrates 8, and a first optical waveguide array 6 and a second optical waveguide array 7 interposed between the two transparent substrates 8, wherein the first optical waveguide array 6 and the second optical waveguide array 7 have the same thickness. Specifically, as shown in fig. 5, the flat lens 1 includes a first transparent substrate 8, a first optical waveguide array 6, a second optical waveguide array 7, and a second glass substrate 8 in this order from the display 2 side to the floating real image 4 side. The first transparent substrate 8 and the second transparent substrate 8 each have two optical surfaces, the transparent substrate 8 has a transmittance of about 90% to about 100% at a wavelength of about 390nm to about 760nm, and the transparent substrate 8 material includes at least one of glass, plastic, polymer, and acrylic for protecting the optical waveguide array and filtering out unnecessary light. Note that, if the strength after the first optical waveguide array 6 and the second optical waveguide array 7 are bonded to each other in an orthogonal manner is sufficient, or if the thickness of the mounting environment is limited, only one transparent substrate 8 may be disposed, or no transparent substrate 8 may be disposed.

The first optical waveguide array 6 and the second optical waveguide array 7 are composed of a plurality of reflecting units 9 with rectangular cross sections, and the length of each reflecting unit 9 is limited by the peripheral size of the optical waveguide array, so that the lengths are different. As shown in fig. 6, the extending direction of the reflecting unit 9 in the first optical waveguide array 6 is X, the extending direction of the reflecting unit 9 in the second optical waveguide array 7 is Y, and the Z direction is the thickness direction of the optical waveguide array. The extending directions (waveguide directions) of the reflecting units 9 in the first optical waveguide array 6 and the second optical waveguide array 7 are mutually perpendicular, namely, the first optical waveguide array 6 and the second optical waveguide array 7 are orthogonally arranged when viewed from the Z direction (thickness direction), so that light beams in two orthogonal directions are converged at one point, and an object image surface is ensured to be symmetrical relative to the flat lens with the equivalent negative refractive index, the phenomenon of the equivalent negative refractive index is generated, and aerial imaging is realized.

As shown in fig. 7, the first optical waveguide array 6 or the second optical waveguide array 7 is composed of a plurality of parallel arranged reflection units 9 obliquely arranged with being deflected by 45 ° at the user viewing angle. Specifically, the first optical waveguide array 6 may be composed of reflection units 9 arranged side by side at 45 ° in the lower left direction and having a rectangular cross section, the second optical waveguide array 7 may be composed of reflection units 9 arranged side by side at 45 ° in the lower right direction and having a rectangular cross section, and the arrangement directions of the reflection units 9 in the two optical waveguide arrays may be interchanged. The optical waveguide material has an optical refractive index n1, n1> 1.4.

Two interfaces exist between each reflection unit 9 and its adjacent reflection unit 9, as shown in fig. 8, each interface is bonded by photosensitive glue 11 or thermosetting glue, the glue thickness is T1, and T1>0.001 mm. Photosensitive adhesives 11 are arranged between the first optical waveguide array 6 and the second optical waveguide array 7 which are adjacent in the flat lens 1, between the first optical waveguide array 6 and the transparent substrate 8, and between the second optical waveguide array 7 and the transparent substrate 8.

The cross section of the reflection unit 9 is rectangular, and the reflection film 10 is provided on the same side or both sides in the lamination direction of the reflection unit 9. Specifically, in the optical waveguide arrangement direction, the two sides of each reflection unit 9 are plated with the reflection film 10, and the material of the reflection film 10 may be a metal material such as aluminum, silver, or other non-metal compound material that realizes total reflection. The reflecting film 10 is used for preventing light from entering an adjacent optical waveguide due to no total reflection to form stray light to influence imaging. A dielectric film may be added to the reflective film 10 to improve the light reflectance.

The cross-sectional width a and the cross-sectional length b of the single reflection unit 9 satisfy 0.1mm < a <5mm, 0.1mm < b <5 mm. When a large screen is displayed, the requirement of large size can be realized by splicing a plurality of optical waveguide arrays. The overall shape of the optical waveguide array is set according to the application scene, in this embodiment, the two groups of optical waveguide arrays are integrally rectangular, the reflection units 9 at two opposite corners are triangular, the reflection unit 9 in the middle is trapezoidal, the lengths of the single reflection units 9 are different, the reflection unit 9 at the diagonal of the rectangle has the longest length, and the reflection units 9 at the two ends have the shortest length.

In addition, the flat lens 1 further includes an anti-reflection component and a viewing angle control component (not shown), the anti-reflection component can improve the overall transmittance of the flat lens 1, improve the definition and brightness of the floating real image 4, the viewing angle control component can be used for eliminating the residual image of the floating real image 4, reduce the pattern vertigo, and simultaneously prevent an observer from peeping into the contactless optical display controller 100 from other angles, so as to improve the overall aesthetic degree of the device. The anti-reflection component and the visual angle control component can be combined or can be respectively and independently arranged between the transparent substrate 8 and the waveguide array, between two waveguide arrays or on the outer layer of the transparent substrate 8. That is, the antireflection member and the viewing angle control member are provided between the first optical waveguide array 6 and the second optical waveguide array 7; or the anti-reflection component and the visual angle control component are arranged between the transparent substrate 8 and the first optical waveguide array 6; or an antireflection member and a viewing angle control member are provided between the transparent substrate 8 and the second optical waveguide array 7.

Specifically, as shown in fig. 9 to 11, the imaging principle of the flat lens of the present invention is as follows:

on the micrometer structure, a double-layer waveguide array structure which is orthogonal to each other is used for orthogonal decomposition of any optical signal, an original signal is decomposed into two paths of orthogonal signals of a signal X and a signal Y, the signal X is totally reflected on the surface of a reflecting film 10 at a first optical waveguide array 6 according to a reflection angle which is the same as an incident angle, the signal Y is kept parallel to the first optical waveguide array 6 at the moment, after passing through the first optical waveguide array 6, the signal Y is totally reflected on the surface of a reflecting film 10 at a reflection angle which is the same as the incident angle, and a reflected optical signal formed by the reflected signal Y and the signal X is in mirror symmetry with the original optical signal. Therefore, the light rays in any direction can realize mirror symmetry through the flat lens 1, the divergent light of any light source can be converged into the floating real image 4 again at the symmetrical position through the flat lens 1, the imaging distance of the floating real image 4 is the same as the distance from the flat lens 1 to the image source (display 2), the floating real image 4 is imaged at equal distance, and the floating real image 4 is positioned in the air, and the real image is directly imaged in the air without a specific carrier. Therefore, the image in the space seen by the user is the light emitted by the actual object.

As shown in fig. 10, the light source of the display 2 passes through the flat lens 1 inside the contactless optical display controller 100, and then the above process occurs on the flat lens 1, specifically, the incident angles of the light rays on the first light waveguide array 6 are α 1, α 2, and α 3, the reflection angles of the light rays on the first light waveguide array 6 are β 1, β 2, and β 3, where α 1 is β 1, α 2 is β 2, and α 3 is β 3, the incident angles on the second light waveguide array 7 after being reflected by the first light waveguide array 6 are γ 1, γ 2, and γ 3, and the reflection angles δ 1, δ 2, and δ 3 on the second light waveguide array 7, where γ 1 is δ 1, γ 2 is δ 2, and γ 3 is δ 3.

The incident angles after the convergent imaging are respectively alpha 1, alpha 2 and alpha 3 … … alpha n, and the distance L between the image and the flat lens 1, the imaging is performed at the equal interval L between the flat lens 1 and the original light source (display 2), and the visual angle epsilon is 2 times max (alpha), so if the size of the optical waveguide array is small, the image can be seen only at a certain distance from the front; if the size of the optical waveguide array is increased, a larger imaging distance can be achieved, thereby increasing the field of view.

Preferably, the included angle between the flat lens 1 and the display 2 is set to be in the range of 45 ° ± 5 °, so that the size of the flat lens 1 can be more fully utilized, and simultaneously, better imaging quality and smaller afterimage influence are obtained. But other angles may be chosen at the expense of partial imaging quality if there are other requirements on the imaging position. It is also preferred that the size of the flat lens 1 is such that the user can see at a glance the picture of the aerial image 4 presented by the entire display 2, but if in actual use only a part of the content of the display 2 needs to be seen, the size and position of the flat lens 1 can be freely adjusted according to the actual display picture.

In addition, the imaging principle of the flat lens 1 having a double-layer structure using the first optical waveguide array 6 and the first optical waveguide array 7 is mainly described above, and the same imaging principle is applied if a plurality of cubic columnar reflection units 9 each having a reflection film on the four peripheral surfaces are arrayed in both the X and Y directions in one optical waveguide array structure, that is, two optical waveguide arrays are combined into one layer. The structure of the flat lens 1 of the contactless optical display controller 100 is also possible.

According to the utility model discloses a some embodiments, the return water valve is changeable between first operating condition and second operating condition, and the return water valve includes: a valve body and a flow-limiting valve.

Specifically, the valve body may be made of brass or polyphenylene sulfide (PPS plastic) plus glass fiber, and has a first flow channel, a second flow channel, and a flow-limiting flow channel, wherein the flow-limiting flow channel is respectively communicated with the first flow channel and the second flow channel. At least a portion of the flow restriction valve is movably disposed within the flow restriction flow passage between a full flow position and a flow restriction position, with the flow restriction valve moving to the full flow position to control maximum opening of the flow restriction flow passage in the first operating state and moving to the flow restriction position to control minimum opening of the flow restriction flow passage in the second operating state. It will be understood that the minimum opening of the restricted flow path includes both the case where a small flow of water still exists in the restricted flow path and the case where the restricted flow path is completely closed.

Therefore, the water return valve is connected to a water path system of the water heater, the first flow channel is respectively communicated with the water mixing valve and the water outlet 202 of the water heater, and the second flow channel is respectively communicated with the water mixing valve and the water inlet 201 of the water heater. When the water heater is started to perform the circulating preheating function, the water return valve is switched to a first working state, the opening degree of the flow-limiting flow channel is the largest, and the water flow path is as shown by an arrow in the figure, so that the water return flow is ensured; when the water heater starts bathing pressurization, the shower head is opened, and then the water return valve is switched to the second working state, so that water cannot be pumped back when the water pump 400 is pressurized, the water pressure generated by the water pump 400 is basically and completely used for pressurizing the shower head, and the pressurizing effect is improved.

In some embodiments of the present invention, the water switch is a water mixing valve, the water mixing valve has a first inlet, a second inlet and a third outlet, the third outlet is selectively communicated with any one of the first inlet and the second inlet, the first flow channel is respectively communicated with the first inlet and the water outlet 202, and the second flow channel is respectively communicated with the second inlet and the water inlet 201. For example, in one example of the present invention, the first flow path is in communication with the first inlet and outlet 202, respectively, the second flow path is in communication with the second inlet and inlet 201, respectively, and the third outlet may be in communication with the first inlet during one mode of operation; in the second mode of operation, the third outlet may be in communication with the second inlet.

According to some embodiments of the present invention, the body 200 has a mounting groove on an outer wall thereof, and the contactless optical display controller 100 is disposed in the mounting groove. It can be understood that by disposing the contactless optical display controller 100 in the mounting groove, the contactless optical display controller 100 no longer protrudes from the surface of the body 200, which is more visually attractive.

In some embodiments of the present invention, the inner wall of the mounting groove has a fastening hole, and the outer wall of the contactless optical display controller 100 has a hook cooperating with the fastening hole. The hook and the hook hole have the advantages of simple structure and easy assembly, and the close connection between the contactless optical display controller 100 and the body 200 can be realized through the matching of the hook and the hook hole. In addition, the cost can be reduced while the connection strength between the contactless optical display controller 100 and the machine body 200 is ensured.

According to some embodiments of the present invention, the imaging pattern of the display 2 may comprise RGB (red, green, blue) light diodes (LEDs), LCOS (liquid crystal on silicon) devices, OLED (organic light diodes) arrays, projections, lasers, laser diodes or any other suitable display or stereoscopic display. The display 2 can provide a clear, bright and high contrast dynamic image light source, and the brightness of the display 2 is not lower than 500cd/m²The influence of the luminance loss in the optical path propagation can be reduced.

Furthermore, according to the utility model discloses a some embodiments carry out visual angle control to the display image surface of display 2 and handle, can lighten the ghost of floating real image 4, improve picture quality, also can prevent that other people from peeping to the wide application needs the input device of privacy information protection.

According to some embodiments of the utility model, optical sensor 3 is far and near infrared sensor, ultrasonic sensor, laser interference sensor, grating sensor, encoder, optic fibre formula sensor or CCD sensor. That is, the sensing form of the optical sensor 3 includes, but is not limited to, far and near infrared, ultrasonic, laser interference, grating, encoder, fiber optic type or CCD (charge coupled device), etc. The sensing area of the optical sensor 3 and the floating real image 4 are located on the same plane and comprise a three-dimensional space where the floating real image is located, an optimal sensing form can be selected according to an installation space, a viewing angle and a use environment, a user can conveniently operate the floating real image 4 in an optimal posture, and the sensitivity and the convenience of user operation are improved.

According to some embodiments of the utility model, controller host computer 5 adopts wired or wireless mode to be connected with optical sensor 3, transmission digit or analog signal to can control contactless optical display controller 100's volume in a flexible way, can strengthen contactless optical display controller 100's electrical stability moreover.

According to some embodiments of the present invention, the first optical waveguide array 6 is the same thickness as the second optical waveguide array 7. Therefore, the complexity of the structures of the first optical waveguide array 6 and the second optical waveguide array 7 can be simplified, the manufacturing difficulty of the first optical waveguide array 6 and the second optical waveguide array 7 can be reduced, the production efficiency of the first optical waveguide array 6 and the second optical waveguide array 7 can be improved, and the production cost of the first optical waveguide array 6 and the second optical waveguide array 7 can be reduced. Note that the same thickness here includes a relative range, and is not absolutely the same, i.e., the difference in thickness between the optical waveguide arrays is acceptable if the aerial imaging quality is not affected, for the purpose of improving production efficiency.

[ second embodiment ]

A gas water heater 1000 according to a second embodiment of the present invention will be described with reference to fig. 12. The remaining configuration is the same as that of the first embodiment except for the difference in the structure of the contactless optical display controller 100, and therefore, a repetitive description of the same configuration with the same symbols will be omitted.

The structure of the contactless optical display controller 100 is characterized by adding a total reflection mirror 12 to the flat lens 1 on the side where the display 2 is located. Light emitted by the display 2 is reflected by the total reflection mirror 12, enters the flat lens 1, and finally converges on the other side of the flat lens 1, so that a floating real image 4 is formed. The functions and structures of the optical sensor 3 and the controller host 5 are the same as those of the first embodiment.

It can be seen that, in this embodiment, after the light of the display 2 is reflected by the total reflection mirror 12, a virtual image 13 that is as large as the display 2 and is plane-symmetric with respect to the total reflection mirror 12 is equivalently formed on the other side of the total reflection mirror 12, and the floating real image 4 is actually mirror-symmetric with respect to the flat lens 1 with the virtual image 13. Preferably, the included angle between the flat lens 1 and the virtual image 13 is set to be in the range of 45 ° ± 5 °, so that the size of the flat lens 1 can be more fully utilized, and simultaneously, better imaging quality and smaller afterimage influence are obtained. But other angles may be chosen at the expense of partial imaging quality if there are other requirements on the imaging position. It is also preferable that the size of the flat lens 1 and the total reflection mirror 12 is set so that the user can see the picture of the aerial image 4 presented by the entire display 2 at a glance, but if it is necessary to see only a part of the content of the display 2 in actual use, the size and position of the flat lens 1 can be freely adjusted according to the actual display picture.

The effect of this embodiment is that the orientation of the display screen in the display 2 can be changed, and the display 2 can be disposed closer to the flat lens 1, and under the condition that the distance between the floating real image 4 and the flat lens 1 is not changed, the overall thickness of the contactless optical display controller 100 is significantly reduced, so as to be better integrated into the gas water heater 1000.

It is understood that a plurality of total reflection mirrors 12 (not shown) may be provided in the contactless optical display controller 100, and the light of the display 2 is reflected therein a plurality of times to form a virtual image farther from the flat lens 1, so that the thickness of the contactless optical display controller 100 can be further reduced.

[ third embodiment ]

A gas water heater 1000 according to a second embodiment of the present invention will be described with reference to fig. 13. The remaining configuration is the same as that of the first embodiment except for the difference in the structure of the contactless optical display controller 100, and therefore, a repetitive description of the same configuration with the same symbols will be omitted.

The contactless optical display controller 100 is structurally characterized by the use of a retro-reflector 14 instead of a flat lens 1, with the addition of a beam splitter 15 to reconverge the light from the display 2 into the air to present a floating real image 4.

Specifically, the imaging principle of the present embodiment is as follows:

the light emitted by the display 2 is firstly reflected to the surface of the retro-reflector 14 through the beam splitter 15, the beam splitter 15 has the characteristic of semi-reflection and semi-transmission, when the part of light enters the surface of the retro-reflector 14, the light is reflected again through the microstructures in the retro-reflector 14, the reflected light returns from the direction close to the direction of the incident light, at the moment, the reflected light is transmitted when passing through the beam splitter 15, and therefore a floating real image is formed in the air at the position of the display 2, which is plane-symmetrical relative to the beam splitter 15.

The beam splitter 15 is used to split a light beam into two light beams, one light beam is transmitted and the other light beam is reflected, and is made of a metal film or a dielectric film, and the ratio of reflection to transmission is about 1:1 in the embodiment, which can be classified into a polarized type and a non-polarized type in principle.

The surface of the retro-reflector 14 has a retro-reflection effect, so that incident light can be reflected from a direction close to the opposite direction of the incident direction, and the surface is mainly covered with micro glass beads or micro prism structures, so that the incident light can be refracted and reflected through the internal microstructures, and the light can be emitted along the opposite direction of the incident direction. Since the structure of the retro-reflector 14 is relatively conventional, it will not be described herein in more detail.

Furthermore, according to some embodiments of the present invention, 1/4 wave plate 16 may be disposed on the surface of the retro-reflector 14, if the light emitted from the display 2 is linearly polarized, reflected by the polarizing beam splitter 15, and then enters the retro-reflector 14 through 1/4 wave plate 16, the reflected light returns from the opposite direction close to the incident light and then passes through 1/4 wave plate 16 again, and the polarization plane of the linearly polarized light emitted from the display 2 is rotated by 90 degrees, so that the light can be emitted from the polarizing beam splitter 15 and converged into the floating image 4 in the air. The method can greatly improve the energy utilization rate of the light of the display 2 and reduce the light intensity loss, thereby improving the brightness of the floating real image 4. It will be appreciated that if the display 2 is sufficiently bright, or if the light emitted by the display 2 is not linearly polarized, a non-polarizing beam splitter 15 may be used without 1/4 wave plate 16.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

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 are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (16)

1. A non-contact operated gas water heater, comprising:

a body having a water inlet and a water outlet;

the heating device is arranged on the machine body;

the water pump is arranged between the water inlet and the water outlet;

a contactless optical display controller, the contactless optical display controller is connected with the machine body, the contactless optical display controller is respectively connected with the heating device and the water pump, the contactless optical display controller comprises: the optical sensor is used for detecting the operation of a user on the floating real image, and the optical sensor is used for feeding back a detected operation signal to the controller host.

2. The non-contact manipulation type gas water heater according to claim 1, wherein the outer wall of the body has a mounting groove, and the contactless optical display controller is disposed in the mounting groove.

3. The non-contact control type gas water heater according to claim 2, wherein the inner wall of the mounting groove is provided with a clamping hole, and the outer wall of the non-contact optical display controller is provided with a clamping hook matched with the clamping hole.

4. The non-contact operated gas water heater according to claim 1, wherein the equivalent negative refractive index optical element comprises: the optical waveguide array comprises a first optical waveguide array and a second optical waveguide array which are formed by laminating a plurality of reflecting units, wherein the first optical waveguide array and the second optical waveguide array are tightly attached to each other on the same plane and are orthogonally arranged.

5. The non-contact manipulation type gas water heater according to claim 4, wherein the reflection unit has a rectangular cross section, and reflection films are provided on the same side or both sides in the stacking direction of the reflection unit.

6. The non-contact manipulation type gas water heater according to claim 5, wherein the reflecting unit has a cross-sectional width and a cross-sectional length of a and b, respectively, and satisfies: a is more than 0.2mm and less than 5mm, and b is more than 0.2mm and less than 5 mm.

7. The non-contact manipulation type gas water heater according to claim 4, wherein the first or second light waveguide array is composed of a plurality of parallel arranged reflecting units arranged obliquely at 45 °.

8. The non-contact manipulation type gas water heater according to claim 4, wherein the waveguide directions of the mutually corresponding portions of the first optical waveguide array and the second optical waveguide array are perpendicular to each other, and the first optical waveguide array and the second optical waveguide array are orthogonally arranged.

9. The non-contact operated gas water heater according to claim 4, wherein the equivalent negative refractive index optical element further comprises two transparent substrates, the first and second optical waveguide arrays being disposed between the two transparent substrates.

10. The non-contact manipulation type gas water heater according to claim 9, wherein the equivalent negative refractive index optical element further comprises an anti-reflection part and a viewing angle control part, the anti-reflection part and the viewing angle control part being disposed between the first optical waveguide array and the second optical waveguide array; or

The anti-reflection component and the visual angle control component are arranged between the transparent substrate and the first optical waveguide array; or

The antireflection member and the viewing angle control member are disposed between the transparent substrate and the second optical waveguide array.

11. The non-contact gas operated water heater according to claim 9, wherein photosensitive adhesives are disposed between the first optical waveguide array and the second optical waveguide array, between the first optical waveguide array and the adjacent transparent substrate, and between the second optical waveguide array and the adjacent transparent substrate.

12. The non-contact operated gas water heater according to claim 1, wherein the non-contact optical display controller further comprises: the total reflector is arranged on one side of the equivalent negative refractive index optical element and arranged on the same side of the display so as to reflect light rays emitted by the display to the equivalent negative refractive index optical element.

13. The non-contact operated gas water heater according to claim 1, wherein the equivalent negative refractive index optical element comprises: a retro-reflector and a beam splitter, the retro-reflector and the display being located on a same side of the beam splitter and the beam splitter reflecting light from the display to the retro-reflector, the beam splitter transmitting light from the retro-reflector.

14. The non-contact operated gas water heater according to claim 13, wherein the surface of the retro reflector is provided with 1/4 wave plates.

15. The non-contact manipulation type gas water heater according to claim 1, wherein the optical sensor is a far-near infrared sensor, an ultrasonic sensor, a laser interference sensor, a grating sensor, an encoder, a fiber optic sensor or a CCD sensor.

16. The non-contact operated gas water heater according to claim 1, further comprising: the detection device is arranged on a water path between the water inlet and the water outlet and is connected with the non-contact optical display controller.

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