CN218471290U - Transmitting device and screen projector - Google Patents

Abstract

The utility model provides a transmitting device and throw screen ware, this transmitting device includes: the shell is internally provided with a first accommodating cavity; the first circuit board is arranged in the first accommodating cavity and extends along the horizontal direction; the first key is at least partially arranged in the first accommodating cavity and can translate relative to the shell to be contacted with the first circuit board; and the first light guide assembly is arranged around the circumference of the first key and is electrically connected with the first circuit board so as to indicate the working state of the first key.

Description

Transmitting device and screen projector

Technical Field

The utility model belongs to the technical field of throw the screen, more specifically relates to an emitter and throw screen ware.

Background

The screen projector is used for displaying a picture of a mobile device on a screen of another device by adopting a specific technology, and in the using process of the screen projector, if the screen projector breaks down, a user is difficult to judge whether the screen projector is in a working state, so that the user experience effect is poor.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an emitter and throw screen ware to solve the technical problem who how to provide user experience.

The technical scheme of the utility model is realized like this:

an embodiment of the utility model provides a transmitting device, include:

the shell is internally provided with a first accommodating cavity;

the first circuit board is arranged in the first accommodating cavity and extends along the horizontal direction;

the first key is at least partially arranged in the first accommodating cavity and can translate relative to the shell to be contacted with the first circuit board;

and the first light guide assembly is arranged around the circumference of the first key and is electrically connected with the first circuit board so as to indicate the working state of the first key.

In some embodiments, a third through hole is formed through the top of the housing, a portion of the first key is located in the first accommodating cavity, another portion of the first key passes through the third through hole, and the first light guide assembly partially passes through the third through hole and is disposed around the first key.

In some embodiments, the first light directing assembly comprises:

the first light guide part is arranged around the circumference of the first key, a first light guide groove is formed in the first light guide part, and the first light guide part is arranged to be a light-transmitting part;

and the first light-emitting pieces are arranged in the first light guide grooves at intervals and are electrically connected with the first circuit board.

In some embodiments, the first light guide member is configured as a ring structure, and the first key has a circular cross section.

In some embodiments, the number of the first light-emitting elements is 3 to 8.

In some embodiments, the first light-emitting members are provided in four.

The embodiment of the utility model provides a screen projector is still provided, include:

the transmitting device of any one of the above claims, configured to emit a signal;

and the receiving device is used for receiving the signal sent by the transmitting device.

In some embodiments, the receiving means comprises:

the base is internally provided with a second accommodating cavity;

the second circuit board is arranged in the second accommodating cavity;

the second key is at least partially arranged in the second accommodating cavity and can translate relative to the second accommodating cavity to be in contact with the second circuit board;

the second light guide assembly is arranged around the circumference of the second key and is electrically connected with the second circuit board so as to indicate the working state of the second key;

the first key is used for switching a screen projection state under the condition of receiving a first signal; the first key is used for sending an instruction of pairing the transmitting device and the receiving device under the condition of receiving a second signal, wherein the first signal is that the pressing time of the first key is less than a first set time, and the second signal is that the pressing time of the first key is greater than a second set time;

the second key is used for changing the power-on state of the receiving device under the condition of receiving a third signal; the second key is used for sending an instruction of pairing the transmitting device and the receiving device under the condition of receiving a fourth signal, the third signal is that the pressing time length of the second key is less than a first set time length, and the fourth signal is that the pressing time length of the second key is greater than a second set time length.

In some embodiments, a side portion of the base is provided with a fourth through hole, a portion of the second key is located in the second accommodating cavity, another portion of the second key passes through the fourth through hole, and the second light guide assembly portion passes through the fourth through hole and is disposed around the second key.

In some embodiments, the second light directing assembly comprises:

the second light guide part is arranged around the circumference of the second key, a second light guide groove is formed in the second light guide part, and the second light guide part is arranged as a light-transmitting part;

the second light-emitting pieces are arranged in the second light guide grooves at intervals and are electrically connected with the second circuit board; wherein, the number of the second luminous elements is 3-8.

The embodiment of the utility model provides a transmitting device and throw screen ware, this transmitting device includes the casing, first circuit board, first button and first leaded light subassembly, be equipped with the first chamber that holds in this casing, first circuit board sets up at the first intracavity that holds, first circuit board extends the setting along the horizontal direction, first button at least part sets up at the first intracavity that holds, but first button casing translation relatively is in order to contact with first circuit board, first leaded light subassembly sets up around the circumference of first button, and be connected with first circuit board electricity, first leaded light subassembly is used for instructing the operating condition of first button. The embodiment of the utility model provides a circumference through at first button sets up first leaded light subassembly, first leaded light subassembly can be used to accurately indicate the operating condition of first button, the user can clearly know the operating condition of first button, the operating condition of corresponding first button can be used to indicate emitter's transmitting state, for example, under the bright state of first leaded light subassembly, the state of first button work can be used to indicate emitter to be located and throw the screen state, under the state that first leaded light subassembly goes out, the operating condition of first button can be used to indicate emitter to be located and feel the screen state. The user can know the operating condition of emitter directly perceivedly through first leaded light subassembly to improve user's experience degree.

Drawings

Fig. 1 is a perspective view of a launching device according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a launching device in accordance with an embodiment of the present invention;

fig. 3 is an exploded view of a launching device in accordance with an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a screen projector according to an embodiment of the present invention;

fig. 5 is a perspective view of a receiving apparatus according to an embodiment of the present invention;

fig. 6 is an exploded view of a receiving device according to an embodiment of the present invention.

Description of reference numerals:

100. a transmitting device; 200. a receiving device; 210. a second accommodating chamber; 211. a fourth via hole; 201. a base; 202. a second circuit board; 203. a second key; 204. a second light guide assembly; 1. a housing; 10. a first accommodating chamber; 101. a third through hole; 2. a first circuit board; 6. a first key; 7. a first light guide member; 71. a first light guide; 72. a first light emitting member.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The individual features described in the embodiments can be combined in any suitable manner without departing from the scope, for example different embodiments and solutions can be formed by combining different features. In order to avoid unnecessary repetition, various possible combinations of the specific features of the present invention will not be described separately.

In the following description, the term "first/second/so" is used merely to distinguish different objects and does not mean that there is a common or relationship between the objects. It should be understood that the description of the "upper", "lower", "outer" and "inner" directions as related to the orientation in the normal use state, and the "left" and "right" directions indicate the left and right directions indicated in the corresponding schematic drawings, and may or may not be the left and right directions in the normal use state.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a component of 8230means that the element does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. "plurality" means greater than or equal to two.

An embodiment of the utility model provides a transmitting device, this transmitting device can be applied to and throw in the screen ware. The screen projector displays a picture of a mobile device (such as a mobile phone, a tablet, a notebook and a computer) on a screen of another device (such as a tablet, a notebook, a computer, a television, a one-piece machine and a projector) in real time through a specific technical method, and the content output by the screen projector comprises various media information and real-time operation pictures. It should be noted that the application scene type of the embodiment of the present invention is not limited to the structure of the screen projector according to the embodiment of the present invention.

The embodiment of the utility model provides a transmitting device 100, this transmitting device 100 is used for the signaling. As shown in fig. 1 and 2, the transmitting device 100 includes a housing 1, a first circuit board 2, a first key 6, and a first light guide member 7. The housing 1 is provided with a first accommodating chamber 10 inside, and the first accommodating chamber 10 is used for accommodating various parts of the transmitting device 100. The first circuit board 2 is disposed in the first accommodation chamber 10, and the first circuit board 2 extends in the horizontal direction. It should be noted that the horizontal direction indicates a direction of a horizontal plane in an absolute coordinate system, and of course, the first circuit board 2 is not necessarily located in the horizontal direction at any time, and the horizontal direction indicates that the first circuit board 2 is located in the horizontal direction in a normal use state of the transmitting apparatus 100 according to the embodiment of the present invention.

As shown in fig. 1 and fig. 2, the first button 6 is at least partially disposed in the first accommodating cavity 10, wherein at least part of the first button 6 is located in the first accommodating cavity 10, or the first button 6 shown in fig. 1 is partially located in the first accommodating cavity 10, and the other part is located outside the first accommodating cavity 10. Under the condition that first button 6 is located first chamber 10 that holds completely, set up the casing 1 that first button 6 set up the position and correspond to flexible structure, that is to say, as long as the exogenic action is in the casing 1 position department that first button 6 corresponds, the casing 1 of this position can take place deformation, and the casing 1 of deformation can drive first button 6 translation can. In the case where the first key 6 is partially located outside the first accommodating cavity 10, an external force may directly act on the first key 6, thereby causing the first key 6 to translate. The first button 6 can be in translational motion to be in contact with the first circuit board 2 arranged in the first accommodating cavity 10, so that the connection of partial circuits on the circuit board is realized, and partial circuits on the circuit board are disconnected under the condition that the first button 6 is positioned at a distance from the first circuit board 2. The embodiment of the utility model provides a through the relative 2 translations of first circuit board of first button 6, realize the switching of the partial circuit on the first circuit board 2.

As shown in fig. 1 and fig. 2, the first light guiding assembly 7 according to the embodiment of the present invention is disposed around the circumference of the first key 6, and it should be noted that the circumference of the first key 6 indicates a direction around the circumference of the first key 6 in the horizontal direction. The embodiment of the present invention does not limit the cross-sectional shape of the first button 6, the cross-section of the first button 6 is on the horizontal plane, that is, the cross-section of the first button 6 can be circular, square, triangular, etc., and the cross-sectional shape of the first button 6 will not limit the function of the first button. The embodiment of the present invention provides that the first key 6 can be electrically connected to the first circuit board 2, and under the condition that the first key 6 is connected to the first circuit board 2, the first light guide assembly 7 can be used to indicate the operating condition of the first key 6, for example, under the condition that the first key 6 is connected to the first circuit board 2, the first light guide assembly 7 around the first key 6 emits light, which is located in a bright state. It should be noted that the embodiment of the present invention does not limit the number of the first keys 6 disposed on the transmitting device, that is, the first keys 6 can be disposed in multiple numbers, a first light guiding assembly 7 is disposed around each first key 6, and each first light guiding assembly 7 is used for indicating the operating state of the corresponding first key 6.

The embodiment of the utility model provides a transmitting device, this transmitting device includes the casing, first circuit board, first button and first leaded light subassembly, be equipped with the first chamber that holds in this casing, first circuit board sets up at the first intracavity that holds, first circuit board extends the setting along the horizontal direction, first button at least part sets up at the first intracavity that holds, but first button casing translation relatively is in order to contact with first circuit board, first leaded light subassembly sets up around the circumference of first button, and be connected with first circuit board electricity, first leaded light subassembly is used for instructing the operating condition of first button. The embodiment of the utility model provides a circumference through at first button sets up first leaded light subassembly, first leaded light subassembly can be used to accurately indicate the operating condition of first button, the operating condition of first button can clearly be known to the user, the operating condition of corresponding first button can be used to indicate emitter's transmitting state, for example, under the bright state of first leaded light subassembly, the state of first button work can be used to indicate emitter to be located throws the screen state, under the state that first leaded light subassembly goes out, the operating condition of first button can be used to indicate emitter to be located and to feel the screen state. The user can know the operating condition of emitter directly perceivedly through first leaded light subassembly to improve user's experience degree.

In some embodiments, as shown in fig. 2 and 3, the top of the housing 1 is provided with a third through hole 101 therethrough, that is, the third through hole 101 communicates with the inside and outside of the top of the housing 1, a part of the first key 6 is located in the first accommodating chamber 10, another part of the first key 10 passes through the third through hole 101, and another part of the first key 10 may protrude out of the third through hole 101, that is, protrude out of the top of the housing 1, or another part of the first key 10 may be flush with the top of the housing 1. No matter what kind of positional relationship has in the other part of first button 10 and the top of casing 1, the embodiment of the utility model provides a set up the other part of first button 10 at second through-hole 101, can enough realize that the user directly acts on external force to first button 10 from the top of casing 1 to improve the precision to the control of first button 10 operating condition.

With reference to fig. 1 to 3, the first light guiding assembly 7 partially passes through the third through hole 101 and the first light guiding assembly 7 is disposed around the first key 6, that is, the user can directly observe the first light guiding assembly 7 from the outside of the housing 1, which improves the indication degree of the first light guiding assembly 7, thereby improving the convenience of the user in using the transmitting device.

In some embodiments, as shown in fig. 3, the first light guide assembly 7 includes a first light guide 71 and a plurality of first light emitters 72. The first light guide member 71 is arranged around the circumference of the first key 6, for example, when the first light guide member 71 is circular, the first light guide member 71 may be arranged in a circular ring structure, the circular ring of the first light guide member 71 is arranged around the circumference of the first key 6, and the contour of the first light guide member 71 may be fitted with the contour of the edge of the first key 6, so that the aesthetic degree of the transmitting device is improved, and the compactness of the structure of the transmitting device is also improved. The first light guide member 71 is a light-transmitting member, a first light guide groove is formed in the first light guide member 71, the plurality of first light-emitting members 72 are arranged in the first light guide groove at intervals, and the plurality of first light-emitting members 72 are electrically connected with the first circuit board 2. A plurality of first light-emitting members 72 are arranged along the extending direction interval of the first light guide groove in the first light-emitting member 71, and by arranging the plurality of first light-emitting members 72, the uniformity of light guide of the first light guide assembly can be improved while the brightness of the first light guide assembly is improved, so that the comfort level of vision is improved.

In some embodiments, as shown in fig. 3, the first light emitting element 72 may be configured as a light emitting patch, where the light emitting patch indicates that the first light emitting element 72 is configured as a flat structure, the first light emitting element 72 may be attached to a sidewall of the first light guiding element 71, and the plurality of first light emitting elements 72 are disposed around the sidewall of the first light guiding element 71, which is beneficial to improving the light emitting uniformity of the first light guiding assembly, so as to improve the comfort level of the user experience.

In some embodiments, as shown in fig. 3, the first light guide 71 is configured as a ring structure, and the cross section of the first key 6 is configured as a circle. The embodiment of the utility model provides a set up to annular structure through with first light pipe 71, be favorable to deriving to first light pipe outside the light that first light-emitting component 72 in the first light pipe 71 sent is even to improve the comfort level that the user is the vision.

In some embodiments, as shown in fig. 3, the first light-emitting element 72 in the present invention may be provided in a plurality, and in some embodiments, the first light-emitting element 72 is provided in 3 to 8. The embodiment of the utility model provides a set up to the certain limit through the quantity with first light-emitting component 72 for first light guide assembly can also reduce emitter's manufacturing cost when having even leaded light effect.

In some embodiments, as shown in FIG. 3, the first light-emitting members 72 are provided in four. The embodiment of the present invention provides four first light emitting members 72 uniformly disposed around the first key 6, and the phase difference between the four first light emitting members 72 at 90 degrees interval can be understood as two first light emitting members 72 disposed on the left and right sides of the first key 6, and two other first light emitting members 72 disposed on the upper and lower sides of the first key 6. The four first light-emitting parts 72 are uniformly arranged around the first key 6, so that the light guide uniformity of the first light guide assembly is improved.

The embodiment of the present invention further provides a screen projector, as shown in fig. 4, the screen projector includes the transmitting device 100 and the receiving device according to any of the above embodiments. The transmitting apparatus 100 is used for transmitting a signal, wherein the transmitting apparatus 100 is connected to a mobile device (e.g., a mobile phone, a tablet, a notebook, a computer), and is used for receiving the signal of the mobile device and transmitting the received signal to the receiving apparatus 200. The receiving apparatus 200 is used for receiving the signal sent by the transmitting apparatus 100, the receiving apparatus 200 is used for connecting to an equipment screen (such as a tablet, a notebook, a computer, a television, a kiosk, and a projector), and the receiving apparatus 200 is used for projecting the received signal onto the equipment screen. That is to say, the transmitting device 100 in the screen projector according to the embodiment of the present invention can display the picture of the mobile device (e.g. mobile phone, tablet, notebook, computer) on another device screen (e.g. tablet, notebook, computer, television, all-in-one machine, projector) in "real time" through communication with the receiving device 200.

It should be noted that the embodiment of the present invention does not limit the physical connection relationship between the transmitting device 100 and the receiving device 200, wherein the transmitting device 100 and the receiving device 200 may have a detachable assembly relationship therebetween, and the transmitting device 100 may also have no connection relationship with the receiving device 200, no matter what connection relationship and position relationship the transmitting device 100 and the receiving device 200 directly have, as long as the transmitting device 100 and the receiving device 200 can communicate with each other.

The utility model discloses throw screen ware in embodiment includes the emitter of any above-mentioned embodiment, the emitter in should throwing the screen ware includes that this emitter includes the casing, first circuit board, first button and first leaded light subassembly, be equipped with the first chamber that holds in this casing, first circuit board sets up at the first intracavity that holds, first circuit board extends the setting along the horizontal direction, first button is at least partly to be set up at the first intracavity that holds, first button casing translation relatively is in order to contact with first circuit board, first leaded light subassembly sets up around the circumference of first button, and be connected with first circuit board electricity, first leaded light subassembly is used for instructing the operating condition of first button. The embodiment of the utility model provides a circumference through at first button sets up first leaded light subassembly, first leaded light subassembly can be used to accurately indicate the operating condition of first button, the operating condition of first button can clearly be known to the user, the operating condition of corresponding first button can be used to indicate emitter's transmitting state, for example, under the bright state of first leaded light subassembly, the state of first button work can be used to indicate emitter to be located throws the screen state, under the state that first leaded light subassembly goes out, the operating condition of first button can be used to indicate emitter to be located and to feel the screen state. The user can know the operating condition of emitter directly perceivedly through first leaded light subassembly to improve user's experience degree.

In some embodiments, as shown in fig. 5 and 6, the receiving device 200 includes a base 201, a second circuit board 202, a second key 203, and a second light guide assembly 204. The base 201 is provided with a second accommodating cavity 210 inside, the second circuit board 202 is disposed in the second accommodating cavity 210, and the second key 203 is disposed at least partially in the second accommodating cavity 210, wherein at least a portion of the second key 203 may be completely located in the second accommodating cavity 210, or as shown in fig. 5, the second key 203 may be partially located in the second accommodating cavity 210, and another portion is located outside the second accommodating cavity 210. Under the condition that the second key 203 is completely located in the second accommodating cavity 210, the base 201 corresponding to the position where the second key 203 is located is set to be a flexible structure, that is, as long as an external force acts on the position of the base 201 corresponding to the second key 203, the base 201 at the position can be deformed, and the deformed base 201 can drive the second key 203 to move horizontally. Under the condition that the second key 203 is partially located outside the second accommodating cavity 210, an external force can directly act on the second key 203, so as to drive the second key 203 to translate. The second button 203 can be in contact with the second circuit board 202 arranged in the second accommodating cavity 210 in a translational motion, so that partial circuits on the circuit board are connected, and partial circuits on the circuit board are disconnected when the second button 203 is located at a position spaced from the second circuit board 202. The embodiment of the utility model provides a through the translation of second button 203 relative second circuit board 202, realize the switching of the partial circuit on the second circuit board 202.

As shown in fig. 5 and fig. 6, the second light guiding assembly 204 is disposed around the circumference of the second key 203, and it should be noted that the circumference of the second key 203 represents the direction around the circumference of the second key 203 in the vertical direction. The embodiment of the present invention does not limit the cross-sectional shape of the second button 203, the cross-section of the second button 203 is on the horizontal plane, that is, the cross-section of the second button 203 can be circular, square, triangular, etc., and the cross-sectional shape of the second button 203 will not limit the function of the first button. The embodiment of the present invention provides that the second key 203 can be electrically connected to the second circuit board 202, and under the condition that the second key 203 is connected to the second circuit board 202, the second light guiding assembly 204 can be used to indicate the operating condition of the second key 203, for example, under the condition that the second key 203 is connected to the second circuit board 202, the second light guiding assembly 204 around the second key 203 emits light, which is located in a bright state. It should be noted that the embodiment of the present invention does not limit the number of the second keys 203 disposed on the receiving device, that is, the second keys 203 can be disposed in multiple numbers, one second light guiding assembly 204 is disposed around each second key 203, and each second light guiding assembly 204 is used for indicating the operating state of the corresponding second key 203.

In some embodiments, as shown in fig. 6, a fourth through hole 211 is formed through a side portion of the base 201, a portion of the second key 203 is located in the second accommodating cavity 210, another portion of the second key 203 passes through the fourth through hole 211, and the second light guiding assembly 204 is partially passed through the fourth through hole 211 and disposed around the second key 203. That is, the user can directly observe the first light guide assembly from the side of the base 201, which improves the indication degree of the second light guide assembly, thereby improving the convenience of the user in using the receiving device.

In some embodiments, as shown in fig. 1 and 5, the first button 6 is used for switching the screen-projecting state when receiving the first signal; wherein, the screen projection state comprises a screen-turning or screen-lighting. The first key 6 is used for sending an instruction of pairing the transmitting device and the receiving device under the condition of receiving a second signal, wherein the first signal is that the pressing time length of the first key 6 is less than a first set time length, and the second signal is that the pressing time length of the first key is greater than a second set time length; the first set duration may be 3S, the second set duration may be 10S, that is, under the condition that the duration of pressing the first key 6 is less than or equal to 3S, the receiving device may implement one-key screen-off or one-key screen-on of the connected screen, and correspondingly, in the state of implementing screen-on, the first light guide assembly 7 is in a normally-on state; in the state of implementing the screen extinguishing, the first light guide assembly 7 is in the extinguishing state.

Under the condition that the duration of pressing the first key 6 is greater than or equal to 10S, the receiving device can be paired with the sending device, wherein the flashing state of the first light guide assembly 7 can be used for prompting the pairing state of the receiving device and the sending device, and the first light guide assembly 7 flashes quickly when the receiving device is not paired with any sending device; when the receiving device is started and is in a state of being paired with the sending device, the first light guide assembly 7 is also in a fast flashing state, when the receiving device is successfully paired with the sending device, but a screen connected with the receiving device is in a screen-off state, the first light guide assembly 7 flashes slowly, when the receiving device is successfully paired with the sending device, the screen is in a screen projection state, and the first light guide assembly 7 is in a normally-on state. According to the embodiment of the invention, the pairing of the sending device and the receiving device is realized through the first key 6, which is beneficial to solving the problem that different devices cannot be matched, and further improves the adaptability of the screen projector.

In the embodiment of the present invention, the second button 203 is used for switching the power supply of the receiving device when receiving the third signal, wherein switching the power supply of the receiving device includes turning off the power supply of the receiving device or turning on the power supply of the receiving device; the second key 203 is configured to send an instruction for pairing the transmitting device with the receiving device when receiving a fourth signal, where the third signal is that the pressing duration of the second key is shorter than a first set duration, and the fourth signal is that the pressing duration of the second key is longer than a second set duration. The first set time period may be less than or equal to 3S, the second set time period may be greater than or equal to 10S, when the time period for pressing the second key 203 is 3S, the transmitting device may implement switching on and off of the power supply of the receiving device, when the power supply of the transmitting device is turned off, the second light guide assembly 204 is in an off state, and when the power supply of the transmitting device is turned on, the second light guide assembly 204 is in a normally on state. Under the condition that the duration of pressing the first key 6 is 10S, the receiving device can be paired with the sending device, wherein the flashing state of the second light guide assembly 204 can be used for prompting the pairing state of the receiving device and the sending device, and the second light guide assembly 204 flashes quickly when the receiving device is not paired with any sending device; when the receiving device is started and is in a state of being paired with the sending device, the second light guide component 204 is also in a fast flashing state, when the receiving device is successfully paired with the sending device, but a screen connected with the receiving device is in a screen-off state, the second light guide component 204 flashes slowly, when the receiving device is successfully paired with the sending device and the screen is in a screen projection state, the second light guide component 204 is in a normally-on state. According to the embodiment of the invention, the pairing of the sending device and the receiving device is realized through the second key 203, which is beneficial to solving the problem that different devices cannot be matched, and further improves the adaptability of the screen projector provided by the embodiment of the invention.

It should be noted that the first set time length and the second set time length of the embodiment of the present invention include, but are not limited to, the time lengths listed in the above embodiments, which are only used as an example, and in other embodiments, the first time length and the second time length can also be set to other time lengths.

In some embodiments, as shown in fig. 6, the second light guide assembly 204 includes a second light guide and a plurality of second light emitters. The second light guide part is internally provided with a second light guide groove, and the second light guide part is set to be a light-transmitting part. The plurality of second light-emitting members are arranged in the second light guide grooves at intervals, and the plurality of second light-emitting members are electrically connected with the second circuit board 202; wherein, the number of the second luminous elements is 3-8.

The embodiment of the utility model provides a second leaded light spare sets up around the circumference of second button, for example, sets up to circular shape under the second leaded light spare, and the second leaded light spare can set up to the ring structure, and the second leaded light spare of ring is around the periphery setting of second button, and the profile of second leaded light spare can be laminated with the edge profile of second button mutually, can also improve the compactness of receiving arrangement structure when improving the pleasing to the eye degree of receiving arrangement. The second light guide member is a light-transmitting member, a second light guide groove is formed in the second light guide member, the plurality of second light emitting members are arranged in the second light guide groove at intervals, and the plurality of second light emitting members are electrically connected with the second circuit board 202. A plurality of second light emitting parts set up along the extending direction interval of the second light guide groove in the second light emitting part, through setting up a plurality of second light emitting parts, can also improve the even degree of second light guide assembly leaded light when improving second light guide assembly luminous luminance to improve the comfort level that is used for the vision.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims (10)

1. A transmitting device, comprising:

the shell is internally provided with a first accommodating cavity;

the first circuit board is arranged in the first accommodating cavity and extends along the horizontal direction;

the first key is at least partially arranged in the first accommodating cavity and can translate relative to the shell to be contacted with the first circuit board;

and the first light guide assembly is arranged around the circumference of the first key and is electrically connected with the first circuit board so as to indicate the working state of the first key.

2. The transmitting device as claimed in claim 1, wherein a third through hole is formed through the top of the housing, a portion of the first key is located in the first accommodating cavity, another portion of the first key passes through the third through hole, and the first light guiding member partially passes through the third through hole and is disposed around the first key.

3. The transmitting device of claim 2, wherein the first light directing assembly comprises:

the first light guide part is arranged around the circumference of the first key, a first light guide groove is formed in the first light guide part, and the first light guide part is arranged as a light-transmitting part;

and the first light-emitting pieces are arranged in the first light guide grooves at intervals and are electrically connected with the first circuit board.

4. The transmitting device as claimed in claim 3, wherein the first light guide is configured as a ring structure, and the first key has a circular cross-section.

5. A device as claimed in claim 3, wherein the number of said first light-emitting elements is 3-8.

6. The transmitting device according to claim 5, wherein the first light-emitting members are provided in four.

7. A screen projector, comprising:

the launch device of any one of claims 1-6 for launching a signal;

and the receiving device is used for receiving the signal sent by the transmitting device.

8. The screen projector as claimed in claim 7 wherein the receiving means comprises:

the base is internally provided with a second accommodating cavity;

the second circuit board is arranged in the second accommodating cavity;

the second key is at least partially arranged in the second accommodating cavity and can translate relative to the second accommodating cavity to be in contact with the second circuit board;

the second light guide assembly is arranged around the circumference of the second key and is electrically connected with the second circuit board so as to indicate the working state of the second key;

the first key is used for switching a screen projection state under the condition of receiving a first signal; the first key is used for sending an instruction of pairing the transmitting device and the receiving device under the condition of receiving a second signal, wherein the first signal is that the pressing time of the first key is less than a first set time, and the second signal is that the pressing time of the first key is greater than a second set time;

the second key is used for changing the power-on state of the receiving device under the condition of receiving a third signal; the second key is used for sending an instruction of pairing the transmitting device and the receiving device under the condition of receiving a fourth signal, the third signal is that the pressing time length of the second key is less than a first set time length, and the fourth signal is that the pressing time length of the second key is greater than a second set time length.

9. The screen projector as claimed in claim 8, wherein the side of the base is provided with a fourth through hole therethrough, a portion of the second key is located in the second accommodating chamber, another portion of the second key passes through the fourth through hole, and the second light guide member portion passes through the fourth through hole and is disposed around the circumference of the second key.

10. The screen projector of claim 9 wherein the second light directing assembly comprises:

the second light guide part is arranged around the circumference of the second key, a second light guide groove is formed in the second light guide part, and the second light guide part is arranged as a light-transmitting part;

the second light-emitting pieces are arranged in the second light guide grooves at intervals and are electrically connected with the second circuit board; wherein, the number of the second luminous elements is 3-8.

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