Door handle-type switch for saving energy
The door handle-type switch with integrated sensors ensures lights are turned on for preset times based on door closure and locking, addressing energy wastage in spaces with varying occupancy patterns.
Patent Information
- Application Number
- PCT/KR2025/001130
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-01-29
- Filing Date
- 2025-01-21
- Publication Date
- 2025-08-07
AI Technical Summary
Existing lighting systems in spaces with limited or long-term occupancy, such as restrooms and classrooms, often require manual intervention to avoid energy wastage, either due to sensors turning off prematurely or timers expiring before the space is vacated.
A door handle-type switch equipped with an opening/closing detection sensor and a lock detection sensor that turns lights on temporarily or continuously for preset times, ensuring energy-efficient lighting based on door closure and locking status.
Effectively manages lighting energy use by ensuring lights remain on for the intended duration, reducing inconvenience and energy waste in spaces with varying occupancy patterns.
Smart Images

Figure KR2025001130_07082025_PF_FP_ABST
Abstract
Description
Doorknob switch for energy saving
[0001] The present invention relates to a door handle-type switch for energy saving, which is equipped with a door frame opening detection sensor and a lock detection sensor, and which turns on a light temporarily or continuously when the door is closed or when the lock pin is operated while the door is closed, thereby effectively managing the energy supplied to the light and saving energy.
[0002] In spaces where occupancy is limited, such as restrooms, sensor-type lights that turn the lights on and off based on user movement are typically used. Furthermore, spaces with long-term occupancy, such as classrooms, often feature lights that can be manually turned on and off, or timer-type lights that remain on for a set period of time.
[0003] Sensor-type lights, because their actuators detect human movement within the detection area, can turn on the lights upon detecting human movement. However, these bathroom lighting systems can turn off after a certain period of inactivity. Consequently, users who regularly use the bathroom must provide a signal to detect human movement every time the lights turn off, which can be inconvenient.
[0004] In the case of timer-type lights, even in spaces like classrooms where meetings or lectures last a long time, the lights turn off after a preset time, which can disrupt the progress of the meeting or lecture. Furthermore, if the meeting or lecture ends before the preset time, unless the user manually turns the lights off, the lights remain on in the empty space, wasting energy.
[0005] The present invention provides an energy-saving door handle-type switch equipped with an opening / closing detection sensor, a lock detection sensor, etc., so that the light can be turned on temporarily or continuously for a preset period of time, thereby effectively saving energy.
[0006] In addition, the present invention provides an energy-saving doorknob-type switch that detects whether a lock pin is locked by a lock detection sensor and turns on the light for a preset continuous lighting time so that the lighting state of the light can be easily maintained.
[0007] In addition, the present invention provides an energy-saving door handle-type switch that detects whether a door is closed by a door opening / closing sensor and turns on a light for a preset temporary lighting time, so that the light can be conveniently controlled to turn on temporarily.
[0008]
[0009] The purpose of the embodiments of the present invention is not limited to the purpose mentioned above, and other purposes not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the description below.
[0010] According to one embodiment of the present invention, an energy-saving doorknob-type switch may be provided, including: a handle provided on a door and used to open the door; a switch housing built into the door; a hinged latch coupled to the handle and fixing the door to a door frame when the door is closed; a locking pin fixing the hinged latch to set the door in a locked state; a hinged detection sensor provided on a catch of the door frame and used to detect contact with the hinged latch; a locking detection sensor provided on the inside of the catch and used to detect contact with the hinged latch; and a guide plate that moves toward the hinged latch when the locking pin advances and brings the hinged latch into close contact with an inner surface of the catch, wherein when the locking detection sensor detects contact, an electric light is turned on for a preset continuous lighting time.
[0011]
[0012] In addition, according to one embodiment of the present invention, the opening / closing detection sensor may be provided with a doorknob-type switch for energy saving that turns a light on or off for a preset temporary lighting time when it detects contact with the opening / closing latch.
[0013]
[0014] In addition, according to one embodiment of the present invention, an energy-saving doorknob-type switch may be provided, which is provided with a compression spring that is positioned between one side of the guide plate and the opening / closing latch and supports the opening / closing latch.
[0015]
[0016] Additionally, according to one embodiment of the present invention, an energy-saving doorknob type switch may be provided, which includes a tension spring coupled to the other side of the guide plate and which adjusts the position of the guide plate.
[0017]
[0018] In addition, according to one embodiment of the present invention, an energy-saving doorknob-type switch may be provided, in which a guide protrusion is provided on the inner surface of the switch housing, a guide groove is formed in the guide plate, and the guide groove is inserted into the guide protrusion so that the guide plate is guided and moves by the guide groove.
[0019]
[0020] In addition, according to one embodiment of the present invention, the guide plate may be provided with an energy-saving door handle-type switch that, when the lock pin moves backward, returns to its original position to release the contact between the opening / closing detection sensor and the opening / closing latch.
[0021]
[0022] In addition, according to one embodiment of the present invention, an energy-saving doorknob-type switch including a light controller that turns on a light during the temporary lighting time or the continuous lighting time may be provided.
[0023]
[0024] Additionally, according to one embodiment of the present invention, the light controller may be provided with a doorknob-type switch for energy saving that turns off the light when the temporary lighting time or the continuous lighting time has elapsed.
[0025] In the present invention, a door handle-type switch is provided with an opening / closing detection sensor, a lock detection sensor, etc., so that the light can be turned on temporarily or continuously for a preset period of time, thereby effectively saving energy.
[0026] In addition, in the present invention, a lock detection sensor detects whether the lock pin is locked, and the light is turned on for a preset continuous lighting time, thereby easily maintaining the lighting state of the light.
[0027] In addition, in the present invention, the door opening / closing sensor detects whether the door is closed, and the light is turned on for a preset temporary lighting time, so that the light can be conveniently controlled to be turned on temporarily.
[0028] FIG. 1 is a drawing illustrating a door equipped with a doorknob-type switch for energy saving according to one embodiment of the present invention.
[0029] FIG. 2 is a drawing illustrating a doorknob-type switch for energy saving according to one embodiment of the present invention.
[0030] FIG. 3 is an exploded view of a doorknob-type switch for energy saving according to one embodiment of the present invention.
[0031] FIG. 4 is a drawing illustrating a door and door frame equipped with a doorknob-type switch for energy saving according to one embodiment of the present invention.
[0032] FIG. 5a is a drawing illustrating a closed state of a door of a doorknob-type switch for energy saving according to one embodiment of the present invention.
[0033] FIG. 5b is a drawing illustrating a state in which the door of a doorknob-type switch for energy saving according to one embodiment of the present invention is locked by a lock pin.
[0034] The advantages and features of embodiments of the present invention, and methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms. These embodiments are provided only to ensure that the invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Like reference numerals designate like elements throughout the specification.
[0035] When describing embodiments of the present invention, detailed descriptions of known functions or configurations will be omitted if they are deemed to unnecessarily obscure the gist of the invention. Furthermore, the terms described below are defined in light of their functions in the embodiments of the present invention and may vary depending on the intent or custom of the user or operator. Therefore, their definitions should be based on the overall content of this specification.
[0036] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.
[0037]
[0038] FIG. 1 is a drawing illustrating a door equipped with a doorknob type switch for energy saving according to an embodiment of the present invention, FIG. 2 is a drawing illustrating a doorknob type switch for energy saving according to an embodiment of the present invention, FIG. 3 is an exploded drawing of a doorknob type switch for energy saving according to an embodiment of the present invention, FIG. 4 is a drawing illustrating a door and a door frame equipped with a doorknob type switch for energy saving according to an embodiment of the present invention, FIG. 5a is a drawing illustrating a state in which a door of a doorknob type switch for energy saving according to an embodiment of the present invention is closed, and FIG. 5b is a drawing illustrating a state in which a door of a doorknob type switch for energy saving according to an embodiment of the present invention is locked by a lock pin.
[0039] Regarding the direction of the door handle type switch (100) for energy saving according to one embodiment of the present invention, the direction of opening the door (10) and the direction of pulling the door (10) may mean the same movement direction of the door (10), and the direction of closing the door (10) and the direction of pushing the door (10) may mean the same movement direction of the door (10). In addition, one direction and the direction toward the door frame (20) may mean the same movement direction, and the other direction and the direction toward the inside of the door (10) may mean the same direction.
[0040]
[0041] Referring to FIGS. 1 to 5b, a door handle-type switch (100) for energy saving according to one embodiment of the present invention may include a handle (111), a switch housing (110), a door latch (112), a lock pin (113), a guide plate (116), a door opening detection sensor (121), and a lock detection sensor (122).
[0042] The handle (111) may be provided as a lever-type handle (111) to open and close the door. Here, the handle (111) may be combined with a switch housing (110), a door latch (112), etc. built into the door (10).
[0043] The switch housing (110) is the main body of the door handle-type switch (100) and can be built into the door (10). Here, the switch housing (110) can be provided in a cylindrical shape and can be formed at a position corresponding horizontally to the catch (20a) formed on the surface of the door frame (20).
[0044] According to one embodiment of the present invention, a switch housing (110) may accommodate a compression spring (114), a tension spring (115), a guide plate (116), etc., therein. In addition, a hinged latch (112) may be protruded or inserted into one side of the switch housing (110), and a hole (not shown) may be formed in the side of the switch housing (110), so that a locking pin (113) may be inserted into the interior of the switch housing (110) through the hole (not shown).
[0045] Additionally, a guide protrusion (110a) may be formed on the inner surface of the switch housing (110). The guide protrusion (110a) is formed at the position of the guide groove (116a) formed in the guide plate (116), so that the guide plate (116) can be guided and moved in the direction in which the guide groove (116a) or the guide protrusion (110a) is formed. Here, the guide protrusion (110a) may be formed at a straight distance to the position of the opening / closing latch (112) in the longitudinal direction of the switch housing (110).
[0046]
[0047] The door latch (112) is coupled to the handle (111) and can fix the door (10) to the door frame (20) when the door (10) is closed. According to one embodiment of the present invention, the door latch (112) protrudes from the switch housing (110) and, when the door (10) is closed, when it comes into contact with the catch (20a) attached to one surface of the door frame (20), it is drawn into the switch housing (110), and when the contact with the catch (20a) is released, it can protrude again.
[0048] According to one embodiment of the present invention, when the door (10) is closed, the hinged latch (112) may be inserted into a grooved portion on the inside of the catch (20a) after one end of the hinged latch (112) comes into contact with the catch (20a). Here, the hinged latch (112) may be positioned at a predetermined distance, approximately 2.5 mm, from the inner surface of the groove without coming into contact with the surface of the grooved portion.
[0049] In addition, a compression spring (114) may be coupled to the other end surface of the hinged latch (112). Since the hinged latch (112) is supported by the compression spring (114), when the door (10) is closed and one end of the hinged latch (112) comes into contact with the catch (20a), the hinged latch (112) may be compressed by the pressure of the door frame (20), and the compression spring (114) may support the hinged latch (112). In addition, when the door (10) is opened or the door (10) is completely closed, the pressure of the door frame (20) is released, and thus the hinged latch (112) may be restored to its original position by the compression spring (114).
[0050]
[0051] The locking pin (113) can fix the door latch (112) to a locked state of the door (10). The locking pin (113) according to one embodiment of the present invention can be inserted into the switch housing (110) by advancing a predetermined distance through a hole (not shown) formed in the switch housing (110). When the locking pin (113) is inserted, the guide plate (116) positioned in the moving direction of the locking pin (113) is pushed by the locking pin (113) in the direction in which the door latch (112) is positioned. Accordingly, the door latch (112) is also pushed a predetermined distance toward the door frame (20) so as to come into contact with the inner surface of the catch (20a), i.e., the grooved surface.
[0052] In addition, the distal end of the lock pin (113) may be formed with a chamfer. The lock pin (113) may push the guide plate (116) while advancing toward the inside of the switch housing (110). Here, the entry direction of the lock pin (113) and the movement direction of the guide plate (116) may not be in the same direction (for example, vertical direction). Accordingly, the distal end of the lock pin (113) may be formed with a chamfer so that the force due to the entry of the lock pin (113) may be transmitted to the guide plate (116), so that the lock pin (113) may be inserted while the chamfered distal end surface pushes the guide plate (116).
[0053]
[0054] The compression spring (114) is positioned between one side of the guide plate (116) and the hinged latch (112), and can support the hinged latch (112). That is, when the door (10) is closed, the hinged latch (112) comes into contact with the catch (20a), and the hinged latch (112) is pushed toward the inside of the door (10) by the pressure from the door frame (20). In this case, since the compression spring (114) supports the hinged latch (112), the hinged latch (112) can be prevented from being pushed beyond a predetermined distance. In addition, when the door (10) is completely closed or opened, the pressure of the door frame (20) acting on the hinged latch (112) is released, and thus the compression spring (114) can restore the hinged latch (112) to its original position.
[0055] According to one embodiment of the present invention, when the locking pin (113) locks and the guide plate (116) moves toward the door frame (20), the compression spring (114) also moves a predetermined distance, thereby moving the opening latch (112) toward the door frame (20). In addition, when the locking pin (113) is released and the guide plate (116) moves inward toward the door (10), the compression spring (114) also moves inward, thereby pulling the opening latch (112), causing the opening latch to fall off the groove surface.
[0056]
[0057] The tension spring (115) is coupled to the other side of the guide plate (116) to adjust the position of the guide plate (116). Here, the tension of the tension spring (115) can be set so that the guide plate (116) is positioned in its original position. That is, when the door (10) is locked by the lock pin (113), the tension of the tension spring (115) can be applied to the guide plate (116) as the guide plate (116) moves toward the door frame (20). Accordingly, when the lock state of the lock pin (113) is released, the guide plate (116) can return to its original position by the tension spring (115).
[0058]
[0059] When the lock pin (113) advances, the guide plate (116) can move toward the opening latch (112) to bring the opening latch (112) into close contact with the inner surface of the catch (20a). Here, when the lock pin (113) advances, it means that the lock pin (113) moves to enter the inner side of the switch housing (110) so that the door (10) is locked by the lock pin (113).
[0060] A guide plate (116) according to one embodiment of the present invention may be positioned inside the switch housing (110) in the direction in which the lock pin (113) enters. The guide plate (116) may be formed in the shape of a plate, and a compression spring (114) may be coupled to one side of the guide plate (116), and a tension spring (115) may be coupled to the other side of the guide plate (116).
[0061] In addition, the guide plate (116) may be formed with a guide groove (116a). When the guide plate (116) is pushed and moved by the lock pin (113), the guide plate (116) must move stably in the direction of the swing latch (112) inside the switch housing (110). If the movement direction of the guide plate (116) is not constant, the position of the swing latch (112) that forms the locked state may also not be constant, and the swing latch (112) may come off the catch (20a) and the locked state may be released. To prevent this, when the guide protrusion (110a) provided in the switch housing (110) is inserted into the guide groove (116a), the guide plate (116) can only move in the direction in which the guide groove (116a) and the guide protrusion (110a) are formed, so that the locked state of the door (10) can be stably set and maintained.
[0062]
[0063] The opening / closing detection sensor (121) is provided on the catch (20a) of the door frame (20) and can detect the contact of the opening / closing latch (112). In particular, the opening / closing detection sensor (121) can be located on the catch (20a) in the direction in which the door (10) is opened or closed.
[0064] When the door opening / closing detection sensor (121) according to one embodiment of the present invention detects the door opening / closing latch (112), the light may be turned on for a preset temporary lighting time, and when the temporary lighting time has elapsed, the light may be turned off. That is, the door opening / closing detection sensor (121) may detect whether the door (10) is opened or closed, rather than whether the door (10) is locked. Here, the temporary lighting time may be preset and controlled by the light controller (123). For example, when the temporary lighting time is set to about 5 seconds, when the door opening / closing detection sensor (121) detects contact with the door opening / closing latch (112), the light may be turned on for about 5 seconds, and when 5 seconds have elapsed, the light may be turned off.
[0065]
[0066] A lock detection sensor (122) is provided on the inside of the catch (20a) and can detect contact with the opening / closing latch (112). The lock detection sensor (122) can be provided on a grooved surface formed on the inside of the catch (20a).
[0067] When the lock detection sensor (122) according to one embodiment of the present invention detects contact with the hinged latch (112), it can be recognized that the door (10) is set to a locked state. That is, when the door (10) is completely closed, the hinged latch (112) can be located on the inside of the catch (20a), that is, inside the groove. At this time, the hinged latch (112) is spaced apart from the groove surface. Here, when the lock pin (113) is operated and the door (10) is set to a locked state, the hinged latch (112) can move by a predetermined distance (for example, about 2.5 mm) and come into contact with the groove surface. In this way, when the hinged detection sensor (121) detects contact with the hinged latch (112), the light can be turned on for a preset continuous lighting time.
[0068] Here, the continuous lighting time can be preset and controlled by the light controller (123). That is, the continuous lighting time can be set to the time until the door latch (112) is released from the lock detection sensor (122), or can be set to a predetermined time, for example, several tens of minutes or several hours.
[0069] When the continuous lighting time is set to the time until the hinge latch (112) is released from the lock detection sensor (122), the light can be maintained in the illuminated state until the hinge latch (112) is released from the lock detection sensor (122) (i.e., when the door (10) is unlocked), and when the hinge latch (112) is released from the lock detection sensor (122) and the contact of the hinge latch (112) is not detected, the light can be turned off. In addition, when the continuous lighting time is set to a predetermined time, the light can be turned off after a predetermined time has elapsed even if the contact of the hinge latch (112) is continuously detected by the lock detection sensor (122). However, even in this case, when the contact of the hinge latch (112) to the lock detection sensor (122) is released, the light can be turned off regardless of whether the preset continuous lighting time has elapsed.
[0070] The opening detection sensor (121) and the lock detection sensor (122) according to one embodiment of the present invention can be operated as in the following example.
[0071] For example, if the temporary lighting time is set to 5 seconds and the continuous lighting time is set to the time until the door latch (112) is released from the lock detection sensor (122), and the user closes the door (10) and locks the door (10) with the lock pin (113) within 5 seconds, the door latch detection sensor (121) and the lock detection sensor (122) will continuously detect contact with the door latch (112). In this case, the light can be continuously lit. In addition, if the user closes the door (10) and locks the door (10) with the lock pin (113) after 5 seconds, the door (10) may be closed, the light may be lit for a certain period of time, then turn off, and then turn on again.
[0072]
[0073] The light controller (123) can turn on the light during a temporary lighting time or a continuous lighting time, and can turn off the light when the temporary lighting time or the continuous lighting time has elapsed. That is, the light controller (123) can control the turning on and off of the light according to the sensing of the opening detection sensor (121) or the lock detection sensor (122).
[0074] A light controller (123) according to one embodiment of the present invention can be built into a door frame (20) and can be connected to a door opening detection sensor (121) and a lock detection sensor (122) provided in the door frame (20) through a plurality of wires (20b).
[0075]
[0076] Although the above description has presented and described various embodiments of the present invention, the present invention is not necessarily limited thereto, and a person having ordinary skill in the technical field to which the present invention pertains will easily understand that various substitutions, modifications, and changes are possible within a scope that does not depart from the technical spirit of the present invention.
Claims
1. A handle provided on the door to open the door, A switch housing built into the door, A hinged latch that is connected to the above handle and secures the door to the door frame when the door is closed; A lock pin that secures the above-mentioned latch and sets the door to a locked state, A door frame catch is provided, and a door opening detection sensor detects the contact of the door latch; A lock detection sensor provided on the inside of the catch and detecting contact of the above-mentioned opening and closing latch, When the above lock pin advances, a guide plate is included that moves toward the opening / closing latch side and presses the opening / closing latch against the inner surface of the catch. When the above lock detection sensor detects contact, the light turns on for a preset continuous lighting time. Doorknob switch for energy saving.
2. In paragraph 1, The above opening detection sensor, When the contact of the above-mentioned opening and closing latch is detected, the light is turned on or off for a preset temporary lighting time. Doorknob switch for energy saving.
3. In paragraph 2, A compression spring is provided between one side of the guide plate and the opening / closing latch to support the opening / closing latch. Doorknob switch for energy saving.
4. In paragraph 3, A tension spring that is coupled to the other side of the above guide plate and adjusts the position of the above guide plate. A doorknob switch for energy saving, including:
5. In paragraph 4, A guide protrusion is provided on the inner surface of the switch housing, and a guide groove is formed in the guide plate. The guide groove is inserted into the guide projection, and the guide plate moves guided by the guide groove. Doorknob switch for energy saving.
6. In paragraph 5, The above guide plate, When the above lock pin moves backward, it returns to its original position, releasing the contact between the opening detection sensor and the opening latch. Doorknob switch for energy saving.
7. In paragraph 6, A light controller that turns on the light during the above-mentioned temporary lighting time or the above-mentioned continuous lighting time. A doorknob switch for energy saving, including:
8. In paragraph 7 The above light controller, When the above temporary lighting time or the above continuous lighting time has elapsed, the light is turned off. Doorknob switch for energy saving.
Citation Information
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