CN211063011U - Rotary conductive device and laser projection clock - Google Patents

Abstract

The utility model discloses a rotating conductive device and a laser projection clock, belonging to the field of laser technology. The positive and negative poles of the power supply and the rotating central axis are also provided with a power supply output bearing pair, and the power supply input bearing pair and the power supply output bearing pair are connected. The utility model can continuously supply power during the rotation process and has high power supply efficiency.

Description

A rotating conductive device and laser projection clock

technical field

The utility model relates to the technical field of projection, in particular to a rotating conductive device and a laser projection clock.

Background technique

The rotating conductive device has a wide range of applications, such as being used in a rotary laser scanning sensor or a rotatable patch panel or a laser projection clock. The Chinese utility model patent publication number CN104051894A discloses a plug-in board, which includes several rotating socket bodies, a power cord and a power supply circular shaft; the several rotating socket bodies are sequentially rotatably sleeved on the power supply circle On the shaft, the outer wall of each rotating socket body is provided with a plurality of sockets, and the sockets are provided with conductive contacts; the power cord is passed through the power supply circular shaft; the outer wall of the power supply circular shaft A plurality of sets of elastic retractable contacts are provided on the conductive contacts corresponding to the insertion positions of the rotary socket body, the elastic retractable contacts are electrically connected with the power cord, and the elastic retractable contacts extend out of the The power supply circular shaft is in electrical contact with the inserted conductive contact piece of the corresponding rotating socket body. When the rotating socket body is rotated, the elastic telescopic contact will be retracted into the power supply circular shaft under the action of external force. When the rotating socket body rotates to a specific position, the elastic telescopic contacts will pop out and contact the electric power supply circular shaft and the corresponding socketed conductive contacts. The patent does not guarantee continuous power supply during rotation. For example, the Chinese utility model patent publication number CN205785062U discloses a rotary laser scanning sensor, which includes a rotating motor, a fixed frame, a rotating body, a sensor and a control module. The rotating motor and the control module are installed in the fixed frame and rotate. The motor is connected with the rotating body and the sensor through the transmission shaft; a wireless power supply module and a wireless data communication module are arranged between the fixed frame and the rotating body, and the wireless power supply module and the wireless data communication module are connected with the control module, and the rotating body is provided with a wireless power supply module and a wireless data communication module. There are wireless power supply receiving module and wireless data receiving module. The patent uses wireless power supply technology, and the power supply efficiency is not as high as that of wired power supply.

Therefore, there is a need for a rotating conductive device that can continuously supply power and has high power supply efficiency.

Utility model content

The utility model provides a rotating conductive device and a laser projection clock, which can continuously supply power and have high power supply efficiency.

The technical scheme of the present utility model is realized in this way:

A rotating conductive device comprises a rotating central shaft, a groove is provided along the axial direction of the rotating central shaft, and a pair of power input bearings is provided at one end of the rotating central shaft, which are respectively connected to the positive and negative poles of the input power supply, and the rotating central shaft is provided with a pair of power input bearings at one end. The shaft is also provided with a power supply output bearing pair, and the power supply input bearing pair and the power supply output bearing pair are in conduction.

As a preferred embodiment of the present utility model, the positive bearings of the power input bearing pair and the power output bearing pair are respectively contacted with conductive members, the conductive members are fixed in the grooves, and the two conductive members are connected by wires; The negative bearing is connected by a metal conductive device.

As a preferred embodiment of the present invention, the two negative pole bearings are connected by a metal spring.

As a preferred embodiment of the present invention, the input power supply is a constant current drive input power supply.

A laser projection clock, comprising the rotating conductive device, a casing, a control circuit board, a drive motor, a minute hand laser projection mechanism, an hour hand laser projection device and a bypass variable speed drive mechanism, the rotating conductive device, the control circuit The board, the driving motor, the minute hand laser projection mechanism, the hour hand laser projection device and the bypass variable speed driving mechanism are fixed in the casing, the control circuit board is electrically connected with the driving motor, and the output power line is connected with the rotating conductive device electrically connected, the minute-hand laser projection mechanism and the hour-hand laser projection device are fixed on the rotating conductive device, and the driving motor is engaged with the rotating conductive device through gears to drive the rotating conductive device and the minute-hand laser projection mechanism to rotate , the hour hand laser projection device is driven to rotate through a bypass variable speed drive mechanism, and the minute hand laser projection mechanism and the hour hand laser projection device project a laser beam and pass through the casing.

As a preferred embodiment of the present invention, it also includes a base, the base is sleeved on the outer side of the bottom of the casing, and a plurality of clamping grooves at different heights are arranged inside the base, and the outer side of the bottom of the casing is provided with The card block corresponding to the card slot.

As a preferred embodiment of the present invention, the top or base of the casing is provided with a photosensitive sensor, which is used to acquire the light data of the external environment and transmit it to the control circuit board.

As a preferred embodiment of the present invention, the power output bearing pair is fixedly connected to the hour hand laser projection device.

As a preferred embodiment of the present invention, the minute hand laser projection mechanism and the hour hand laser projection device are connected in series.

The beneficial effect of the utility model is that the power supply can be continuously supplied during the rotation process and the power supply efficiency is high.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic structural diagram of an embodiment of a rotary conductive device of the present invention;

Fig. 2 is the structural representation of the metal sheet in Fig. 1;

3 is a schematic cross-sectional structure diagram of an embodiment of a rotary conductive device of the present invention;

4 is a schematic diagram of the internal structure of an embodiment of a rotary conductive device of the present invention;

Fig. 5 is the sectional view of Fig. 4;

Figure 6 is a circuit schematic diagram of the control circuit board.

In the figure, 1-rotating central axis; 101-groove; 2-power input bearing pair; 3-power output bearing pair; 4-metal sheet; 5-shell; 501-top cover; 502-transparent cover; 503 - Bottom case; 6- Control circuit board; 7- Drive motor; 8- Minute hand laser projection mechanism; 9- Hour hand laser projection device; 901- Hour hand case; 902- Hour hand gear; Shaft input gear; 12-upper bracket; 13-lower bracket; 14-buckle.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings, only It is for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the description of the present utility model, it should also be noted that, unless otherwise expressly specified and limited, the terms "set", "installation", "connected", "connected", "positive pole", "negative pole", "output" ", "input" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or through an intermediate medium Indirect connection can be the connection between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

As shown in FIG. 1 and FIG. 2 , the utility model proposes a rotating conductive device, which includes a rotating central shaft 1, a groove 101 is provided along the axial direction of the rotating central shaft 1, and one end of the rotating central shaft 1 is provided with a power input bearing pair 2. The positive and negative poles of the input power supply are respectively connected. The rotating central shaft 1 is also provided with a power supply output bearing pair 3, and the power supply input bearing pair 2 and the power supply output bearing pair 3 are connected. Specifically, the central rotating shaft 1 is made of insulating material. The laser scanning sensor can be fixed on the bearing through a fixing mechanism, and the laser scanning sensor can be driven to rotate by a motor and a gear. In addition, the bearing can be connected to the socket of the socket to provide a safe voltage, and the power will be continuously supplied during rotation. The rotating conductive device in the present invention has other applications, which will not be repeated here.

As a preferred embodiment of the present invention, the positive bearings of the power input bearing pair 2 and the power output bearing pair 3 are respectively contacted with conductive parts, the conductive parts are fixed in the groove 101, and the two conductive parts are connected by wires; Metal conductive device connection. Specifically, the conductive member is a metal sheet 4 with an arc, and the metal sheet 4 is in contact with the bearing. The two negative bearings can be connected by metal springs.

Specifically, the number of power supply output bearing pairs 3 may be multiple groups, and adjacent groups of power supply output bearing pairs 3 are connected in series to supply power.

Specifically, the input power supply is a constant current drive input power supply, and the constant current drive input power supply includes a constant current drive circuit and a filter circuit, the filter circuit is connected to the output end of the constant current drive circuit, and a constant current waveform with better waveform is obtained after filtering.

As shown in FIG. 3 , the present invention also proposes a laser projection clock, which includes a rotating conductive device, a housing 5, a control circuit board 6, a drive motor 7, a minute hand laser projection mechanism 8, an hour hand laser projection device 9 and The bypass variable speed drive mechanism 10, the rotating conductive device, the control circuit board 6, the drive motor 7, the minute hand laser projection mechanism 8, the hour hand laser projection device 9 and the bypass variable speed drive mechanism 10 are fixed in the housing 5, and the control circuit board 6 and the The driving motor 7 is electrically connected, the output power cord is electrically connected with the rotating conductive device, the minute hand laser projection mechanism 8 and the hour hand laser projection device 9 are fixed on the rotating conductive device, and the driving motor 7 is meshed with the rotating conductive device through gears to drive the rotating conductive device. The device and the minute hand laser projection mechanism 8 rotate, and the hour hand laser projection device 9 is driven to rotate through the bypass variable speed drive mechanism 10 . In this embodiment, the bypass variable speed drive mechanism 10 is engaged with the hour hand laser projection device 9. In other embodiments, the bypass variable speed drive mechanism 10 can also be engaged with the minute hand laser projection mechanism 8, then the minute hand laser projection mechanism 8 will pass through The power output bearing pair 3 is connected with the rotating central shaft 1 .

The housing 5 includes a top cover 501, a light-transmitting cover 502 and a bottom case 503 which are fixed in sequence from top to bottom. The positions of the minute-hand laser projection mechanism 8 and the hour-hand laser projection device 9 correspond to the positions of the light-transmitting cover 502, and the projected laser The beam passes through the light-transmitting cover 502 . Specifically, both the top cover 501 and the bottom case 503 can be made of plastic, and the light-transmitting cover 502 can be made of transparent plastic.

The utility model also includes a base, which is sleeved on the outer side of the bottom of the casing 5, and is provided with a plurality of card slots at different heights inside. The base is fixed on the wall by screws or glue, and the housing 5 is rotated clockwise or counterclockwise, so that the clamping blocks of the housing 5 are connected with the slots of different heights, and the distance between the laser diode and the wall changes. When the projection angle of the diode does not change, the length of the laser beam representing the clock and minute hand projected on the wall changes, which is equivalent to a change in the size of the projected clock.

The top or the base of the casing 5 is provided with a photosensitive sensor, which is used to acquire the light data of the external environment and transmit it to the control circuit board 6 . The photosensitive sensor is electrically connected to the control circuit board 6, and sends the brightness information of the external environment to the control circuit board 6, and the control circuit board 6 can control the magnitude of the output current according to the brightness information of the external environment, thereby adjusting the brightness value of the laser diode.

The power output bearing pair 3 is fixedly connected with the hour hand laser projection device 9 . The minute hand laser projection mechanism 8 and the hour hand laser projection device 9 are connected in series.

The top of the rotating central axis 1 is fixed with an upper bracket 12 , and the bottom is fixed with a buckle 14 . The minute hand laser projection mechanism 8 , the hour hand laser projection mechanism and the central axis input gear 11 are fixed between the upper bracket 12 and the buckle 14 . Specifically, the upper bracket 12 is fixedly connected to the top cover 501 through screws, and the upper bracket 12 is connected to the central rotating shaft 1 through a bearing. The minute hand laser projection mechanism 8 is fixedly connected with the rotating central axis 1 , and is driven to rotate by the rotating central axis 1 , and rotates at the same speed as the rotating central axis 1 . The minute-hand laser projection mechanism 8 is a cylindrical minute-hand case with a U-shaped slot for fixing the minute-hand laser diode. The hour-hand laser projection mechanism includes a cylindrical hour-hand case 901 and an hour-hand gear 902. The cylindrical hour-hand case 901 is provided with a fixed The U-shaped slot of the hour hand laser diode, the top of the cylindrical hour hand shell 901 is connected to the rotating shaft 1 through a bearing, the bottom of the cylindrical hour hand shell 901 is fixedly connected to the hour hand gear 902, and is driven to rotate by the hour hand gear 902, and the hour hand gear 902 is connected with the rotating central shaft 1 through a bearing.

There is also a lower bracket 13 between the hour hand laser projection mechanism and the central axis input gear 11, and the lower bracket 13 is provided with branches extending outward. The branch is the third vertical branch, and the lower bracket 13 is connected with the central axis of rotation 1 through a bearing. A vertical connecting piece is fixed between the bottom gear and the top gear of the bypass variable speed drive mechanism 10, and the vertical connecting piece is clamped at the top of the third branch. The first and second branches are used to fix the power line of the laser diode. The bottom gear of the bypass variable speed drive mechanism 10 meshes with the center shaft input gear 11 , and the top gear of the bypass variable speed drive mechanism 10 meshes with the hour gear 902 . The bottom gear of the bypass variable speed drive mechanism 10 drives the top gear of the bypass variable speed drive mechanism 10 through the vertical connection.

The control circuit board 6 is connected to the drive motor 7 through wires, the positive and negative poles of the output power are respectively connected to the power input bearing pair 2 through wires, and the wires pass through the lower bracket 13 . The bearing connected to the positive pole of the input power supply is connected to a metal piece 4, and the metal piece 4 is connected to a wire until the minute hand laser projection mechanism 8, which supplies power to the minute hand laser diode, and the negative pin of the minute hand laser diode is connected to the power output through a wire. The bearing pair 3 The metal sheet 4 corresponding to the positive bearing of the power supply, the two metal sheets 4 are respectively located in the two grooves 101 opposite to the central axis of rotation 1, and the two bearings of the power output bearing pair 3 are respectively electrically connected with the clock laser diode, and the power output bearing The negative bearing of pair 3 is connected to the negative bearing of the power input bearing pair 2 through the spring, and finally a complete conduction path is formed. The laser projection clock in the utility model realizes conduction through the bearing, which reduces the application of wires, prevents the wires from being entangled together by the rotating central shaft 1 during the rotation process, and can greatly reduce the probability of wire breakage.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of the new protection.

Claims (9)

1. a rotating conductive device, comprising a rotating central shaft, it is characterized in that: the rotating central shaft is provided with a groove along the axial direction, and one end of the rotating central shaft is provided with a pair of power input bearings, which are respectively connected to the positive and negative of the input power supply. A pair of power supply output bearings is also provided on the rotating central shaft, and the power supply input bearing pair and the power supply output bearing pair are in conduction. 2 . The rotating conductive device according to claim 1 , wherein the positive bearings of the power input bearing pair and the power output bearing pair are respectively contacted with conductive parts, and the conductive parts are fixed in the grooves. 3 . , the two conductive parts are connected by wires; the negative bearing is connected by a metal conductive device. 3 . The rotating conductive device according to claim 2 , wherein the two negative pole bearings are connected by metal springs. 4 . 4 . The rotating conductive device according to claim 1 , wherein the input power supply is a constant current drive input power supply. 5 . 5. A laser projection clock, comprising the rotating conductive device according to claim 4, characterized in that further comprising a casing, a control circuit board, a drive motor, a minute hand laser projection mechanism, an hour hand laser projection device and a bypass variable speed drive mechanism , the rotating conductive device, the control circuit board, the drive motor, the minute hand laser projection mechanism, the hour hand laser projection device and the bypass variable speed drive mechanism are fixed in the casing, and the control circuit board is electrically connected to the drive motor, The output power line is electrically connected to the rotating conductive device, the minute hand laser projection mechanism and the hour hand laser projection device are fixed on the rotating conductive device, and the driving motor is engaged with the rotating conductive device through gears to drive the The rotating conductive device and the minute-hand laser projection mechanism rotate, and the hour-hand laser projection device is driven to rotate through a bypass variable-speed drive mechanism, and the minute-hand laser projection mechanism and the hour-hand laser projection device project a laser beam and pass through the casing. 6 . The laser projection clock according to claim 5 , further comprising a base, the base is sleeved on the outer side of the bottom of the casing, and a plurality of card slots at different heights are arranged inside the base. 6 . The outer side of the bottom of the casing is provided with a card block corresponding to the card slot. 7 . The laser projection clock according to claim 5 , wherein a photosensitive sensor is provided on the top or the base of the casing to acquire light data of the external environment and transmit it to the control circuit board. 8 . 8 . The laser projection clock according to claim 5 , wherein the power output bearing pair is fixedly connected to the hour hand laser projection device. 9 . 9 . The laser projection clock according to claim 8 , wherein the minute hand laser projection mechanism and the hour hand laser projection device are connected in series. 10 .

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