Projection imaging device

Abstract

The utility model discloses a projection imaging device, which comprises a base, a control unit and a projection unit, an accommodating space is arranged in the base, and a through hole penetrating to the outside is arranged on one side surface of the accommodating space, so that the control unit and the projection unit are adjacently arranged and assembled in the accommodating space. The control unit and the projection unit are electrically connected with each other, the projection unit comprises a driving circuit board, and a collimating lens, an imaging panel, a first imaging lens, a second imaging lens, a third imaging lens and the like which are sequentially arranged on one side of the driving circuit board, and the third imaging lens is provided with a projection lens which is opposite to the through hole on one side of the accommodating space; therefore, the image data can be transmitted to the projection unit through the control unit, and the purpose of clearly projecting the image to the outside through the projection lens can be achieved.

Description

Technical Field

[0001] The utility model relates to a projection display device, in particular to a projection display device capable of projecting an image in a predetermined direction, wherein a control unit and a projection unit are assembled in a base internal accommodation space so that a projection lens of the projection unit projects an image in a predetermined direction outside the base, thereby achieving the purpose of being able to control the projection direction of the projected image. Background Art

[0002] With the continuous development and innovation of electronic and electrical products, people are also provided with convenience and comfort in their daily lives. For household appliances that are often used in daily life, such as washing machines, dryers, sweepers or dishwashers, touch switches, operation buttons or display panels of control interfaces are installed on the surface of the machine body for the convenience of operation and application, so as to provide users with understanding of the operation and application status of various household appliances. At present, washing machines with horizontal design are arranged with entrances and exits and control interfaces on the side of the machine body for the convenience of users to take and put clothes for washing. However, if the washing machine is placed at a higher or lower position, it is easy to cause inconvenience for users to see the control interface on the side; and the application of dishwashers is also quite common, most of them are The dishwasher is embedded under the sink for washing dishes and cutlery, so the operation panel and display panel of the dishwasher are located at a relatively low position. When the dishwasher is in operation, the user must bend down or squat to carefully see the machine status displayed on the display panel if he wants to know the use status (such as washing time, setting time or adding detergent, etc.). This causes great inconvenience and trouble for many housewives or older users. Therefore, the control interface and display panel of various household appliances widely used at present are far away from the user's sight area due to the limitation of the setting position, and are not easy to be clearly viewed by the user, resulting in many inconveniences and troubles for the user when using the dishwasher, which needs to be improved by relevant industry players.

[0003] Therefore, how to solve the problem that current home appliances can only be installed in locations that are difficult for users to see due to the limitation of their installation locations, and the trouble and inconvenience caused by the control interface settings of home appliances, which makes the application status of home appliances displayed on the display panel difficult to see, is the direction that the relevant manufacturers engaged in this industry are eager to study and improve. Utility Model Content

[0004] Therefore, in view of the above problems and deficiencies, the present invention provides a projection display device.

[0005] The utility model provides a projection display device, comprising a base, a control unit and a projection unit. The base has an accommodating space inside, and a through hole penetrating to the outside is provided on one side of the accommodating space, so that the control unit and the projection unit are arranged adjacently and assembled inside the accommodating space. The projection unit is adjacent to one side of the control unit, and the control unit and the projection unit are electrically connected to each other. The projection unit comprises a driving circuit board, a collimating lens arranged in sequence on one side of the driving circuit board, an imaging panel, a first imaging lens, a second directional lens and a third imaging lens, etc., and a projection lens corresponding to the through hole on one side of the accommodating space is provided on the third imaging lens. Image data can be transmitted to the projection unit via the control unit, and the purpose of clearly projecting the image to the outside through the projection lens can be achieved, and the projected image is projected to the ground or the wall, etc., so as to facilitate users to easily view the image content.

[0006] Among them, the base includes a main body and a cover body covering the main body, and a accommodating space is formed inside the main body and the cover body. The accommodating space includes a first section for accommodating a control unit and a second section for accommodating a projection unit. A through hole is provided on one side of the second section and penetrates to the outside so that the projection lens of the projection unit can be positioned and fixed at the through hole. The accommodating space is provided with a second section inside the main body. The second section inside the main body is respectively provided with a plurality of holding partitions on two opposite inner wall surfaces for assembling and positioning the projection unit. The driving circuit board, collimating lens, display panel, first imaging lens, second imaging lens and third imaging lens of the projection unit can be assembled in sequence and clamped at each holding partition to form a positioning.

[0007] The control unit includes a circuit substrate, which is assembled in the accommodating space of the base, and the circuit substrate is electrically connected to the projection unit in a wired or wireless manner. The circuit substrate of the control unit also includes a processor, which is electrically connected to a power supply, a first ground side and a first connection port, and the power supply is connected in series with a capacitor, and then electrically connected to the second ground side by the capacitor, that is, it is connected to a second connection port provided on a driving circuit board of the projection unit in a wired or wireless manner via the first connection port, and the second connection port is electrically connected to a microcontroller, and the microcontroller is electrically connected to a pulse width modulation unit and a current control unit respectively, and is electrically connected to the light source through the current control unit. The circuit substrate and the driving circuit board of the projection unit are respectively provided with a wireless signal transmitter and a wireless signal transceiver for transmitting wireless signals, image signals or power, etc., so that signals can be transmitted to each other, and the projection display device can be assembled in household appliances (such as a dishwasher, a washing machine or a sweeper, etc.), and can also be electrically connected to the electronic circuit system of the household appliance through the circuit substrate of the control unit to transmit electronic signals, etc.

[0008] Among them, the driving circuit board of the projection unit has an electronic system such as a preset circuit built in, and at least one light source [light-emitting diode (LED) etc.] is arranged on the surface opposite to the collimating lens, and the collimating lens of the projection unit is convexly provided with a diffusion mirror on the other side relative to the driving circuit board, and a focusing mirror is arranged on the surface of the first imaging lens relative to the diffusion mirror, and an imaging panel is arranged between the diffusion mirror and the focusing mirror, then the imaging panel can be a thin film transistor liquid crystal display (TFT-LCD), then the diffusion mirror of the collimating lens and the focusing mirror of the first imaging lens can be convex lens surfaces convex toward the opposite inner sides respectively.

[0009] Among them, a heat sink is protruding on the driving circuit board, and the heat sink is a heat sink fin or a fan. The heat sink relative to the driving circuit board is a notch provided on one side of the accommodating space inside the base, and the opposite notch is a through groove provided on the other side of the accommodating space. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional appearance diagram of the utility model.

[0011] Figure 2 It is a three-dimensional exploded view of the utility model.

[0012] Figure 3 This is a three-dimensional exploded view from another perspective of the utility model.

[0013] Figure 4 It is a side sectional view of the utility model.

[0014] Figure 5 It is a front sectional view of the utility model.

[0015] Figure 6 This is a three-dimensional appearance diagram of a preferred embodiment of the utility model.

[0016] Figure 7 The utility model is a simplified circuit diagram of the circuit substrate.

[0017] Figure 8 The figure is a simplified block diagram of the driving circuit board of the utility model.

[0018] Fig. 9 This is a three-dimensional appearance diagram of another embodiment of the utility model.

[0019] Fig.10 This is a three-dimensional exploded view of another embodiment of the utility model.

[0020] Description of reference numerals: 1-base; 10-accommodating space; 101-first section; 102-second section; 103-through hole; 104-slot; 105-through slot; 11-body; 111-inner wall; 112-holding partition; 12-cover; 2-control unit; 21-circuit substrate; 211-processor; 212-power supply; 2121-capacitor; 2122-second ground side; 213-first ground side; 214-first connection port; 3-projection unit; 31-driving circuit board; 311-light source; 312-second connection port; 313-microcontroller; 314-pulse width modulation unit; 315-current control unit; 316-heat sink; 32-collimating lens; 321-light-collecting surface; 322-diffusing mirror; 33-imaging panel; 34-first imaging lens; 341-collecting mirror; 342-projection surface; 35-second imaging lens; 351-light-incoming surface; 352-light-exiting surface; 36-third imaging lens; 361-light-collecting surface; 362-projection lens; 4-household electrical appliances. DETAILED DESCRIPTION

[0021] In order to achieve the above-mentioned purpose and effect, the technical means and structure, implementation method, etc. adopted by the utility model are described in detail with reference to the drawings for the preferred embodiment of the utility model, and its features and functions are as follows for a complete understanding.

[0022] See also Figures 1 to 10 As shown, the projection display device of the utility model includes a base 1, a control unit 2 and a projection unit 3, wherein:

[0023] The base 1 has an accommodating space 10 therein, and the accommodating space 10 forms two adjacent first sections 101 and second sections 102 , and a through hole 103 penetrating to the outside is disposed on a side surface of the second section 102 .

[0024] The control unit 2 is assembled inside the accommodation space 10 of the base 1 .

[0025] The projection unit 3 is assembled inside the accommodating space 10 of the base 1 and adjacent to one side of the control unit 2, and includes a driving circuit board 31, a collimating lens 32, a display panel 33, a first imaging lens 34, a second imaging lens 35 and a third imaging lens 36 arranged in sequence on one side of the driving circuit board 31, and a light collecting surface 361 and a projection lens 362 are respectively provided on the two side surfaces of the third imaging lens 36 and fixed in the through hole 103 on one side of the accommodating space 10.

[0026] The base 1 of the utility model comprises a main body 11 and a cover 12 covering the main body 11, and a accommodating space 10 is formed inside the main body 11 and the cover 12, and the accommodating space 10 comprises a first section 101 for accommodating the control unit 2, and a second section 102 for accommodating the projection unit 3, and a through hole 103 penetrating to the outside is provided on one side of the second section 102, so that the projection lens 362 of the projection unit 3 can be positioned at the through hole 103, and the second section 102 of the accommodating space 10 provided inside the main body 11 is provided with a plurality of holding partitions 112 on two opposite inner wall surfaces 111, respectively, so that the driving circuit board 31, the collimating lens 32, the display panel 33, the first imaging lens 34, the second imaging lens 35 and the third imaging lens 36 of the projection unit 3 can be assembled and clamped in sequence at each holding partition 112 to form a positioning.

[0027] Furthermore, the control unit 2 of the above-mentioned utility model includes a circuit substrate 21, so that the circuit substrate 21 is assembled inside the first section 101 of the accommodating space 10 of the base 1, and the circuit substrate 21 is electrically connected to the projection unit 3 in a wired or wireless manner. The circuit substrate 21 and the driving circuit board 31 of the projection unit 3 are respectively provided with a wireless signal transmitter (not shown in the figure) for transmitting wireless signals, image signals or power, etc., and a wireless signal transceiver (not shown in the figure) for mutual transmission of signals.

[0028] In addition, the projection unit 3 of the utility model described above has a driving circuit board 31 that can be equipped with an electronic system such as a preset circuit, and has at least one light source 311 [which can be a light emitting diode (LED) or the like] disposed on the surface thereof, which is opposite to the collimating lens 32, and the collimating lens 32 of the projection unit 3 has a convex light-collecting surface 321 disposed on the surface opposite to the driving circuit board 31, and a convex diffuser mirror 322 disposed on the other side thereof, and a convex light-collecting mirror 341 disposed on the surface of the first imaging lens 34 disposed opposite to the diffuser mirror 322, and a convex projection mirror 342 disposed on the other side thereof. Surface 342, and an imaging panel 33 is provided between the diffusion mirror surface 322 and the focusing mirror surface 341, the imaging panel 33 may be a thin film transistor liquid crystal display (TFT-LCD), etc., the diffusion mirror surface 322 of the collimating lens 32 and the focusing mirror surface 341 of the first imaging lens 34 may be convex lens surfaces convex toward the relative inner sides respectively, and relative to the projection surface 342 of the first imaging lens 34, a light input surface 351 is provided on the surface of the second imaging lens 35, and a light output surface 352 is provided on the other side surface of the second imaging lens 35.

[0029] The circuit substrate 21 of the control unit 2 of the present invention further includes a processor 211 (please also refer to Figure 7 , Figure 8As shown), the processor 211 is electrically connected to a power supply 212, a first ground side 213 and a first connection port (MCU / GPIO0, MCU / GPIO1) 214, and the power supply 212 can be connected in series with a capacitor 2121, and then the capacitor 2121 is electrically connected to the second ground side 2122, so that the first connection port 214 can be electrically connected to the second connection port (TX / RX) 312 of the driving circuit board 31 of the projection unit 3 in a wired manner, and the first connection port 214 can also be used to transmit various electronic signals (for example, control signals, indication signals or power signals) between the second connection port 312 in a wireless transmission manner. The second connection port 312 is electrically connected to a microcontroller (Micro Controller) 313, and the microcontroller 313 is electrically connected to a pulse width modulation unit (PWM Unit) 314, and the pulse width modulation unit (PWM Unit) 314 is electrically connected to a current control unit (Current Control Unit) The second connection port 312 receives a signal from the processor 211 transmitted from the first connection port 214, and the second connection port 312 transmits the received signal to the microcontroller 313, so that the microcontroller 313 can control the pulse width modulation unit 314 and the current control unit 315 according to the received signal, so as to control and adjust the light source 311 to produce various colors (for example, red light, green light or yellow light), various brightness or flickering modes, and the light source 311 can project light to the focusing surface 321 of the collimating lens 32.

[0030] In addition, the second connection port (TX / RX) 312 of the driving circuit board 31 of the projection unit 3 can also be electrically connected to a preset personal computer (PC) or a preset device (Device, such as home appliance 4, etc.), and then receive a signal transmitted from the preset personal computer or the preset device through the second connection port 312, and provide it to the microcontroller 313. After the received signal, the pulse width modulation unit 314 and the current control unit 315 can be controlled to control and adjust the light source 311 to produce various colors (such as red light, green light or yellow light, etc.), various brightness or flickering changes, etc., so that the light source 311 can project light to the focusing surface 321 of the collimating lens 32.

[0031] Furthermore, the projection unit 3 of the present invention may be provided with a heat sink 316 protruding from the driving circuit board 31 (please also refer to Fig. 9 , Fig.10As shown in the figure, the heat sink 316 can be a heat sink fin or a fan, and the heat sink 316 of the driving circuit board 31 is provided with a notch 104 on one side of the internal accommodation space 10 of the body 11 and the cover 12 of the base 1, so that the heat sink 316 on the driving circuit board 31 can be exposed to the outside of the base 1 through the notch 104 on one side of the accommodation space 10, and the heat energy generated by the operation of the driving circuit board 31 and the plurality of light sources 311 can be quickly dissipated out of the outside of the base 1 through the heat sink 316, so that the driving circuit board 31 and the plurality of light sources 311 can achieve the effects of rapid heat dissipation and temperature reduction; in addition, the notch 104 of the base 1 is provided in the accommodation space A through groove 105 is further provided on the other side of 10. The through groove 105 is opposite to the circuit substrate 21 of the control unit 2, so as to assist the heat energy generated by the circuit substrate 21 during operation to be dissipated outward from the through groove 105. The through groove 105 can also be used to circulate air inside the accommodating space 10 and outside the base 1, and to circulate and exchange hot and cold air, so as to achieve the functions of heat dissipation and temperature reduction of the circuit substrate 21. That is, the heat energy generated by the operation of the control unit 2 and the projection unit 3 can be quickly dissipated to prevent the heat energy from being stored inside the accommodating space 10 of the base 1, so that the control unit 2 and the projection unit 3 are not affected by heat energy and high temperature during operation.

[0032] The projection display device of the utility model can be assembled in a home appliance 4 (such as a dishwasher, a washing machine or a sweeper, etc.), and the base 1 is assembled in the home appliance 4. The circuit substrate 21 of the control unit 2 and the electronic circuit system of the home appliance 4 can be electrically connected by wired or wireless means to transmit electronic signals, so that the operation of the home appliance 4 can be controlled by the control unit 2, and the circuit substrate 21 of the control unit 2 can be connected to the operation status of the home appliance 4 [such as switch, start (ON), end (OFF), operation time, control program, remaining time, adding detergent or use status (such as water inlet) The light is then projected onto the focusing surface 321 of the collimating lens 32 by the light source 311 [which may be a light emitting diode (LED)] through the driving circuit board 31. The collimating lens 32 then diffuses the light onto the surface of the display panel 33 through the diffusion mirror 322 on the other side. The operating status of the home appliance 4 [such as switch, start, end, operating time, control program, remaining time, adding detergent or use status (such as water in, washing, dehydrating, paused or washing completed, etc.)] is displayed on the display panel 33. ) etc.] are projected onto the focusing mirror surface 341 of the first imaging lens 34, and then the image is gathered by the focusing mirror surface 341, and then projected onto the light-incoming surface 351 of the second imaging lens 35 through the projection surface 342 on the other side, and then the image is projected onto the light-collecting surface 361 of the third imaging lens 36 through the light-exiting surface 352 on the other side of the second imaging lens 35, and then the image can be projected onto the outside of the base 1 in a predetermined direction (for example, downward, left or right, etc.) through the projection lens 362 on the other side of the third imaging lens 36, so as to achieve the purpose of clearly projecting the image to the outside through the projection lens 362, for example, projecting downward to the ground or toward The image is projected sideways onto a wall or other location that is convenient for users to view, so that the use status of the home appliance 4 can be displayed on the ground or wall, etc., so that users can clearly view the operation status of the home appliance 4 [such as: switch, start (ON), end (OFF), operation time, control program, remaining time, adding detergent or use status (such as: filling with water, washing, adding detergent, dehydrating, pausing or cleaning completed, etc.)], and easily understand the application mode of the home appliance 4. The projected image is projected onto the ground below, the left or right wall, etc., so that users can conveniently view the image content.

[0033] The above are only preferred embodiments of the present invention, which do not limit the scope of the present invention. Therefore, all simple modifications and equivalent structural changes made using the description and drawings of the present invention should be included in the protection scope of the present invention and are hereby stated.

[0034] In summary, the projection display device of the present invention can achieve its effect and purpose in practical application, so the present invention is a practical and excellent utility model.

Claims

1. A projection display device, comprising a base, a control unit and a projection unit, characterized in that: The base has a containing space inside, and a through hole penetrating to the outside is provided on one side of the containing space; The control unit is assembled inside the accommodating space of the base; and The projection unit is assembled inside the accommodating space of the base and adjacent to one side of the control unit. It includes a driving circuit board with at least one light source, a collimating lens, a display panel, a first imaging lens, a second imaging lens and a third imaging lens arranged in sequence on one side of the driving circuit board, and the third imaging lens is provided with a projection lens facing the through hole located on one side of the accommodating space.

2. The projection display device according to claim 1, characterized in that: The base includes a main body and a cover covering the main body, and the accommodating space is formed inside the main body and the cover. The accommodating space includes a first section for accommodating the control unit and a second section for accommodating the projection unit, and a through hole is provided on one side of the second section to penetrate to the outside.

3. The projection display device according to claim 2, characterized in that: The accommodating space is provided with the second section inside the main body, and the second section inside the main body is provided with a plurality of holding partitions on two opposite inner wall surfaces for assembling and positioning the projection unit.

4. The projection display device according to claim 1, characterized in that: The control unit includes a circuit substrate assembled inside the accommodating space of the base, and the circuit substrate is electrically connected to the projection unit in a wired or wireless manner.

5. The projection display device according to claim 4, characterized in that: The circuit substrate of the control unit also includes a processor, which is electrically connected to a power supply, a first ground side and a first connection port, and the power supply is connected in series with a capacitor, and then electrically connected to the second ground side via the capacitor, that is, connected to the second connection port provided on the driving circuit board of the projection unit in a wired or wireless manner via the first connection port, and the second connection port is electrically connected to a microcontroller, and the microcontroller is electrically connected to a pulse width modulation unit and a current control unit respectively, and is electrically connected to the light source through the current control unit.

6. The projection display device according to claim 1, characterized in that: The driving circuit board of the projection unit is provided with a preset circuit in the inside, and the at least one light source is arranged on the surface thereof and is opposite to the collimating lens.

7. The projection display device according to claim 1, characterized in that: The collimating lens of the projection unit is provided with a diffusion mirror on the other side relative to the driving circuit board, and a focusing mirror is provided on the surface of the first imaging lens relative to the diffusion mirror, and the display panel is provided between the diffusion mirror and the focusing mirror, and the display panel is a thin film transistor liquid crystal display.

8. The projection display device according to claim 7, characterized in that: The diffusion mirror surface of the collimating lens and the focusing mirror surface of the first imaging lens are convex lens surfaces which are convex toward opposite inner sides respectively.

9. The projection display device according to claim 1, characterized in that: A heat sink is protruding from the driving circuit board, and the heat sink is a heat sink fin or a fan. The heat sink of the driving circuit board is provided with a notch on one side of the accommodating space inside the base, and a through groove is provided on the other side of the accommodating space relative to the notch.

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