TWI740403B - Remote controller structure for vehicles - Google Patents

Abstract

A remote control structure for vehicles includes: a casing formed by combining a first casing portion and a second casing portion, so that an accommodation space is formed inside the casing, wherein the casing has an outer side edge, and a button unit is arranged at a place of the outer side edge; a circuit board arranged in the accommodating space, wherein the circuit board has a control circuit assembly, and one end of the button unit is coupled to the circuit board; a helical antenna disposed in the accommodating space, wherein one end of the helical antenna is coupled to the circuit board; and a metal sheet wound around the side of the outer side edge, wherein a part of the metal sheet covers the button unit. With the design of the remote control structure for vehicles by the present disclosure, the problem of radiation field interference can be solved, so that the blind-spot fall on the human body's shielding area, so that the distribution of radio wave radiation is rationalized and the electric power is effectively applied.

Description

Car remote control structure

The present invention relates to a remote control structure, in particular to a vehicle remote control structure that allows the rationalization of radio wave radiation distribution and the effective application of electric power.

At present, the radio wave radiation pattern of the car remote control on the market is not ideal, especially the long-distance car remote control, and the remote control direction is close to the blind spot of the antenna gain, which makes the power consumption efficiency low.

The prior art, such as the omnidirectional high-gain dipole antenna with the bulletin number M318202, connects the helical antenna parts and rod antenna parts with different helical pitches in series to each other, so that the antenna array distance of the dipole antenna is lengthened, and by The impedance matching part connected in series adjusts the line impedance value of the dipole antenna to increase the radiation field gain of the dipole antenna.

The conventional technology such as the bulletin number M381964 concealed antenna two-way remote control mainly lies in that the antenna can be hidden in the shell, making the overall appearance more beautiful.

Conventional technologies such as the announcement number M305452 for the antenna of the metal decoration remote control are mainly characterized in that: the upper and lower cover combined with the outer ring reserve a concave ring for a metal decoration type antenna to be fastened and exposed, and then the inner end of the antenna is extended The electrical connection piece, in order to reduce the volume and appearance of the traditional telescopic remote control.

However, the design of the above-mentioned conventional technology cannot solve the problem of radio wave absorption effect and blind spot position, which will affect the effective distance of antenna signal reception and the effective application of power. Therefore, it is necessary to improve it.

One of the objectives of the present invention is to provide a remote control structure for a vehicle. The remote control structure for a vehicle solves the problem of radiation field interference, so that most of the strong gain part is distributed in an arc to the front of the human body and the gain blind spot falls on The human body shelter area increases the remote control distance and range.

Another object of the present invention is to provide a remote control structure for a vehicle, which has the function of effectively applying electric power.

Another object of the present invention is to provide a remote control structure for a vehicle, which can reduce the space occupied by the hardware of the remote control.

In order to achieve the above and other objectives, the vehicle remote control structure of the present invention includes in one embodiment: a shell, which is formed by combining a first shell and a second shell, so that the inside of the shell An accommodating space is formed, the housing has an outer ring side, and one of the outer ring sides is provided with a key unit; a circuit board is arranged in the accommodating space, and the circuit board has a control circuit assembly , One end of the button unit is coupled to the circuit board; a helical antenna disposed in the accommodating space, one end of the helical antenna is coupled to the circuit board; and a metal sheet is wound around the side of the outer ring, and the metal A part of the sheet covers the button unit.

In some embodiments of the present invention, the position of the end of the coupling between the helical antenna and the circuit board is higher or higher than the two ends of the metal sheet.

In some embodiments of the present invention, the button unit is protrudingly provided on the side of the outer ring.

In some embodiments of the present invention, wherein one end of the metal sheet has at least one protrusion.

In some embodiments of the present invention, wherein the convex portion has flexibility.

In some embodiments of the present invention, the metal sheet is a U-shaped metal frame.

In some embodiments of the present invention, wherein the side of the outer ring forms a U-shaped slot.

In some embodiments of the present invention, the helical antenna has a diameter of 8 mm and a height of 7.5 mm.

In some embodiments of the present invention, wherein the width of the metal sheet is the same as the circular diameter of the helical antenna.

In some embodiments of the present invention, a display unit is embedded in the first shell portion.

The vehicle remote control structure of the present invention can convert the radiation field pattern of the normal mode (Normal mode) helical antenna into the axial mode (Axial mode), wherein a small helical antenna is combined with a metal sheet (frame) to twist the radiation field, Most of the strong gain part is distributed in an arc shape directly in front of the human body and the gain blind spot falls in the human body shielding area. This result can rationalize the distribution of radio wave radiation and increase the effective application of power.

10: Shell

11: The first shell

12: The second shell

13: accommodating space

14: outer ring side

20: Button unit

30: circuit board

40: Helical antenna

50: metal sheet

51: Convex

60: display unit

Fig. 1 is an exploded view of an embodiment of the remote control structure for a car of the present invention; Fig. 2 is a perspective view of the appearance of an embodiment of the remote control structure for a car of the present invention; Fig. 3 is a structure of the remote control for a car of the present invention A top view of the appearance of an embodiment; FIG. 4 is a schematic diagram of the use mode of an embodiment of the remote control structure for a vehicle of the present invention; 5 is a perspective view of the appearance of another embodiment of the remote control structure for a car of the present invention; FIG. 6 is a top view of the appearance of another embodiment of the remote control structure for a vehicle of the present invention; FIG. 7 is a structure of the remote control for a car of the present invention An embodiment of the plane radiation field pattern simulation test chart.

FIG. 1 is an exploded view of an embodiment of the remote control structure for a vehicle of the present invention. Please refer to FIG. 1. The vehicle remote control structure of the present invention includes a housing 10, a key unit 20, a circuit board 30, a helical antenna 40 (Helical antenna) and a metal sheet 50 in one embodiment, wherein the housing 10 is composed of A first shell portion 11 and a second shell portion 12 are combined, so that an accommodating space 13 is formed inside the housing 10, and the accommodating space 13 is used for accommodating electronic components of the remote control. The housing 10 Preferably, it is a rectangular cube with an R angle. The housing 10 has an outer ring side 14 and a key unit 20 is provided at one of the outer ring sides 14 for the user to press operate.

The circuit board 30 is disposed in the accommodating space 13, and there is a control circuit assembly (not shown) on the circuit board 30. The circuit assembly includes the circuits and control elements required by the remote control, such as control chips and battery holders. Etc., the circuit has always become a conventional technology, which will not be repeated here, and one end of the button unit 20 is coupled to the circuit board 30. When the button unit 20 is pressed, the actuating elements of the circuit assembly are triggered to perform various operations. Function, for example: lock or unlock.

The helical antenna 40 is disposed in the accommodating space 13, and one end of the helical antenna 40 is coupled to the circuit board 30. In the present invention, one end of the helical antenna 40 in the helical axis direction abuts against the accommodating space 13 The top end and the other end are coupled to one end of the circuit board 30 so that radio waves can be sent or received from the helical antenna 40.

2 is a schematic diagram of the appearance of an embodiment of the remote control structure for a vehicle of the present invention, and FIG. 3 is a top view of the appearance of an embodiment of the remote control structure for a vehicle of the present invention. Please refer to FIGS. 2 and 3. The metal sheet 50 is wound around the side 14 of the outer ring, and a part of the metal sheet 50 covers the key unit 20. The metal The sheet 50 is wrapped in a U-shape on the casing 10 so that the metal sheet 50 is attached to the outer ring side 14. The metal sheet 50 can be a metal sheet or a metal frame with an appropriate thickness.

Please continue to refer to FIG. 1. Preferably, in one embodiment, the button unit 20 is protruded from the side 14 of the outer ring to provide the user with the convenience of pressing the button unit 20, and avoid the inability to place the button unit 20 during pressing. Actuating components of the circuit board 30.

Please continue to refer to FIG. 1. Preferably, in one embodiment, the metal sheet 50 has at least one protrusion 51 at one end, especially when the button unit 20 is protruding from the side 14 of the outer ring, the protrusion 51 can be According to the arrangement of the key unit 20, the key unit 20 is more conscientiously covered, so that the user can directly press the convex portion 51. Of course, the protrusion 51 can also be designed according to the shape, size and number of keys of the key unit 20 to facilitate the overall design of the mechanism. For example, if the key unit 20 has two keys, one end of the metal sheet 50 can form two protrusions. The part 51 covers the two keys of the key unit 20, so that the user can press one of the convex parts 51 according to the key function.

When the user presses the button unit 20, in order to isolate the electromagnetic wave absorption effect, the metal sheet 50 is added between the button unit 20 and the finger to isolate the influence of the finger and enhance the polarization remote control direction, for example, when the thumb presses the metal sheet 50 The button unit 20 can be touched to trigger the actuating elements of the circuit board 30, and the metal sheet 50 can be isolated from the influence of fingers. Preferably, the position of the end of the coupling of the helical antenna 40 and the circuit board 30 is higher than or Exceeding the two ends of the metal sheet 50 (the viewing angle as shown in FIG. 3 is higher than the two ends of the metal sheet 50), so as not to affect the transmitting efficiency of the antenna.

FIG. 4 is a schematic diagram of the usage mode of an embodiment of the remote control structure for a vehicle of the present invention. Please refer to FIG. 4. When the user wants to lock or unlock the car remote control, the direction of the helical antenna 40 is aligned with the direction of the car, and the user’s thumb presses the convex part 51 on the side of the car remote control to press the button unit 20. Since the metal sheet 50 isolates the radio wave absorption effect of the thumb, it can enhance the polarization remote control direction.

Preferably, in one embodiment, the convex portion 51 is flexible, and can maintain the original shape or function without deformation under frequent repeated pressing, which can provide the user with a better pressing touch and Durability increases the practicability of the overall structure design.

Please continue to refer to FIG. 1. Preferably, in one embodiment, the metal sheet 50 is a U-shaped metal frame. The metal sheet 50 can be designed into a U-shape according to the shape, width, and length of the outer ring side 14 Metal frame, at this time, the metal sheet 50 can have better robustness, and it is also convenient to assemble with the housing 10.

5 is a perspective view of the appearance of another embodiment of the remote control structure for a vehicle of the present invention. FIG. 6 is a top view of the appearance of another embodiment of the remote control structure for a vehicle of the present invention. Please refer to FIGS. 5 and 6. Preferably, in one embodiment, the outer ring side 14 forms a U-shaped slot, and the U-shaped slot design of the outer ring side 14 allows the metal sheet 50 and the housing 10 to have better The close design, especially when the metal sheet 50 is a U-shaped metal frame, the metal sheet 50 can be embedded on the side 14 of the outer ring, so that the metal sheet 50 and the housing 10 are more stable without falling off. The side edges of the vehicle remote control structure of the present invention are smoother, streamlined, and comfortable to hold. This design is also conducive to the assembly design of the overall structure.

Fig. 7 is a simulation test diagram of a plane radiation field pattern of an embodiment of the remote control structure for a vehicle of the present invention. Please refer to Fig. 7, where Fig. 7(a) is the simulation result of a general traditional remote control, and Fig. 7(b) The simulation result of the remote controller for the vehicle of the present invention. Preferably, in one embodiment, the helical antenna 40 has a diameter of 8mm and a height of 7.5mm. Assuming that the vehicle is located directly in front of the remote control (the angle is 0°), then there is a better radiation gain. In general, the gain of the traditional remote controller (the antenna size is 5mm diameter and 18mm height) is -8.3dB, while the gain of the present invention is -5.4dB, which is a total increase of 2.9dB, and the operating frequency is 915MHz.

Please continue to refer to FIG. 7, where FIG. 7(a) is the simulation result of a general traditional remote control, and FIG. 7(b) is the simulation result of the vehicle remote control of the present invention. Suppose that when the vehicle is located in front of the remote control within the range of 30° on the left and right sides (30° on the left and 30° on the right), that is, the angle between the remote control and the center is 60°. Generally, the traditional remote control (antenna size) Is a circle diameter of 5mm and a height of 18mm) The maximum radiation gain is- 5.7dB, the minimum value is -9.1dB, and the radiation gain of the present invention has a maximum value of -4.8dB and a minimum value of -6.6dB. The maximum and minimum values are increased by 0.9dB and 2.5dB respectively, and the drop value is reduced by 3.4dB is improved to 1.8dB, where the operating frequency is 915MHz.

Please continue to refer to Figure 7. Since the blind spot of radiation should be located in the direction close to the human body and opposite to the direction of the controlled car, the present invention hopes that the radiation energy in this area is as small as possible, and the radiation power is pushed to the front of the human body to be distributed in an arc to conform to the actual use situation. It can be seen from 7 that the present invention deepens the radiation energy of the blind spot from -14.3dB before the improvement to -17.1dB, reducing the unnecessary loss of 2.8dB in total.

Preferably, in one embodiment, the width of the metal sheet 50 is the same as the circular diameter of the helical antenna 40. At this time, the best effect can be achieved for the radio wave absorption effect of isolating the thumb.

Please continue to refer to Figure 1 and Figure 6. Preferably, in an embodiment, the first housing 11 is embedded with a display unit 60, and the display unit 60 may be a liquid crystal display for displaying the battery power status in the remote control or the current door lock status of the vehicle , Such as being locked or unlocked, it is convenient for the user to know whether the vehicle is currently locked or not.

By changing the position and size of the helical antenna 40 and increasing the design of the metal sheet 50 through the present invention, the distance and angle range of the remote control signal of the vehicle remote control can be greatly increased, and the power usage can be more efficient.

The above-mentioned embodiments are only to illustrate the technical ideas and features of the present invention, and their purpose is to enable those who are familiar with the art to understand the content of the present invention and implement them accordingly. However, the patent scope of the present invention cannot be limited by this. All the equal changes or modifications made in accordance with the spirit of the present invention and the contents of the specification shall be covered by the scope of the patent of the present invention.

10 Shell 11 The first shell department 12 The second shell department 14 Side of the outer ring 20 Key unit 50 Metal sheet 51 Convex part 60 Display unit

Claims (10)

A remote control structure for vehicles, including: A shell, which is formed by combining a first shell portion and a second shell portion, so that an accommodating space is formed inside the shell, the shell has an outer ring side, and the outer ring side A key unit is provided at one of the locations; A circuit board arranged in the accommodating space, the circuit board has a control circuit assembly, and one end of the button unit is coupled to the circuit board; A helical antenna disposed in the accommodating space, one end of the helical antenna is coupled to the circuit board; and A metal sheet is arranged around the side of the outer ring, and a part of the metal sheet covers the key unit. The remote control structure for a vehicle according to claim 1, wherein the position of the end of the coupling between the helical antenna and the circuit board is higher than or exceeds the two ends of the metal sheet. The remote control structure for a vehicle according to claim 1, wherein the key unit is protrudingly arranged on the side of the outer ring. The remote control structure for a vehicle according to claim 1, wherein one end of the metal sheet has at least one convex portion. The remote control structure for a vehicle according to claim 4, wherein the convex portion has flexibility. The remote control structure for a vehicle according to claim 1, wherein the metal sheet is a U-shaped metal frame. The remote control structure for a vehicle according to claim 1, wherein the outer ring side forms a U-shaped card slot. The vehicle remote control structure according to claim 1, wherein the helical antenna has a diameter of 8mm and a height of 7.5mm. The vehicle remote control structure according to claim 1, wherein the width of the metal sheet is the same as the circular diameter of the helical antenna. The remote control structure for a vehicle according to claim 1, wherein a display unit is embedded in the first shell portion.

Images