A power-off delay disengaging device suitable for a roller shutter machine

Abstract

The utility model discloses a kind of power-off delay disengaging devices suitable for roller shutter machine, including box body, capacitor assembly, transformer, electromagnet, metal block, mounting plate and folding plate, capacitor assembly and transformer are set in box body, electromagnet is connected with power supply, and capacitor assembly is connected electromagnet by transformer, box body and electromagnet are sequentially set on mounting plate from top to bottom, metal block is set on the side of folding plate, the other side of folding plate is connected to mounting plate with openable and closable, metal block can be adsorbed on electromagnet;The utility model provides power-off disengaging device, when power-off, the time delay after power-off can be accurately controlled, not affected by external environment temperature, the time delay after power-off can be accurately set according to actual situation needs, and outdoor environment can safely use all functions.

Description

Technical Field

[0001] This utility model belongs to the field of roller shutter machine technology, specifically a power-off delay disconnection device suitable for roller shutter machines. Background Technology

[0002] In the environmental control system of large-scale livestock farming, the rolling shutter machine plays a crucial role. When the rolling shutter machine is powered off, to prevent it from remaining closed for extended periods and affecting ventilation in the farming environment, a manual winch system connected to the rolling shutter or air inlet is needed to open it.

[0003] However, some power outages are only temporary. To avoid immediately opening the roller shutter after a brief power outage, existing technology uses a power-off release device to delay the opening of the roller shutter. This existing power-off release device technology uses a bimetallic spring with an expansion heating tube. When energized, the expansion tube generates heat, causing the bimetallic spring to deform. The deformed bimetallic spring then locks inside the expansion tube, and the resistance overcomes the pulling force of the manual winch system of the roller shutter or air inlet. When the power is off, the expansion tube stops generating heat, and the bimetallic spring returns to its pre-deformation state after a period of cooling (power-off delay). When the locking resistance can no longer overcome the pulling force of the manual winch system of the roller shutter or air inlet, the bimetallic spring, along with the swing arm, is pulled out of the expansion heating tube of the power-off release device. The swing arm of the power-off release device then releases the manual winch system of the roller shutter or air inlet, allowing the roller shutter and air inlet to open.

[0004] The main drawbacks of existing technologies include: 1. The bimetallic spring deforms when heated, and the power-off delay time will vary greatly when the ambient temperature changes significantly; 2. Currently, the adjustment of the power-off delay time relies entirely on manually bending the bimetallic spring to increase or decrease the friction between the spring and the expansion tube, which depends on personnel experience and is very difficult to guarantee accuracy; 3. Currently, the power-off disconnection device has no alarm output, and if a limit switch or micro switch is added to the swing arm position, it will be difficult to solve the problem of insufficient protection level for outdoor use.

[0005] In summary, existing technologies still lack a more structurally stable power-off delay disconnection device that is unaffected by changes in external ambient temperature. Utility Model Content

[0006] This utility model provides a power-off disconnection device that can precisely control the delay time after power failure, is not affected by the ambient temperature, and can accurately set the delay time after power failure according to actual needs. All functions can be used safely in outdoor environments.

[0007] To achieve this objective, the present invention provides the following technical solution:

[0008] This utility model provides a power-off delay disconnection device suitable for roller shutter machines, including a housing, a capacitor assembly, a transformer, an electromagnet, a metal block, a mounting plate, and a folding plate. The capacitor assembly and the transformer are disposed in the housing, and the capacitor assembly is connected to the electromagnet through the transformer. The housing and the electromagnet are arranged sequentially from top to bottom on the mounting plate. The metal block is disposed on one side of the folding plate, and the other side of the folding plate is foldably connected to the mounting plate. The metal block can be attracted to the electromagnet.

[0009] Preferably, the power-off delay disconnection device for roller shutter machines of this utility model further includes a folding assembly, the folding assembly including a door hinge and a spring, the door hinge connecting the mounting plate and the folding plate, and the spring being sleeved on the door hinge.

[0010] Preferably, the spring includes a fixing part at the upper end, a spring coil in the middle, and a hook at the lower end. The fixing part is fixed to the mounting plate, the spring coil in the middle is sleeved on the door hinge, and the folding plate is provided with a through hole that matches the hook. The hook can be connected to a roller blind rope through the through hole.

[0011] Preferably, the capacitor assembly includes multiple capacitors and multiple switches, wherein the multiple capacitors may be connected in series or in parallel, and the multiple switches are disposed on the circuit in which the multiple capacitors are connected in series or in parallel.

[0012] In this invention, a precise delay time after power failure can be achieved. Different groups of capacitors are used to store electrical energy. Different groups of capacitors are set by DIP switches to store different electrical energy, thereby achieving different precise electromagnet delay power supply time settings.

[0013] Preferably, the capacitor is a supercapacitor.

[0014] In this invention, the control circuit uses a supercapacitor to store electrical energy to maintain the engagement of the electromagnetic clutch. The lifespan of the supercapacitor is longer than that of the backup power battery.

[0015] Preferably, the power failure delay disconnection device for rolling shutter machines described in this utility model further includes an early warning system and a detection switch, wherein the detection switch is disposed on the mounting plate and is connected to the early warning system.

[0016] Preferably, the detection switch includes a micro switch and a displacement switch.

[0017] Preferably, the metal block is an iron disc.

[0018] The usage method of the power-off delay disconnection device for rolling shutter machines of this utility model is briefly summarized as follows:

[0019] Step 1: When the roller shutter machine is powered on, the external power source is the electromagnet, and the spring hook hooks onto the roller shutter rope.

[0020] Step 2: At this point, the mounting plate and the folding plate are closed, and the electromagnet attracts the metal block.

[0021] Step 3: The detection switch detects the status of the mounting plate and the folding plate. Since the status of the mounting plate and the folding plate has not changed, the warning system is not triggered.

[0022] Step 4: The power to the roller shutter machine is turned off, the external power supply stops supplying power to the electromagnet, and the capacitor supplies power to the electromagnet instead.

[0023] Step 5: The amount of electricity stored in the capacitor is pre-calculated and designed using switches and series and parallel connections of multiple capacitors. Therefore, when the preset time is reached, the capacitor will be depleted.

[0024] Step 6: In the power-off state, the folding plate is subjected to the force of the spring and the pulling force of the manual winch system of the roller shutter or air inlet, causing the electromagnet and the metal block to separate.

[0025] Step 7: The roller blind cord detaches from the hook, and the roller blind opens;

[0026] Step 8: The detection switch detects changes in the status of the mounting plate and the folding plate, triggering the early warning system;

[0027] Step 9: Workers identify warnings and take intervention measures.

[0028] Compared with the prior art, the beneficial effects and significant progress of this utility model are as follows:

[0029] 1. The power-off delay disconnection device for rolling shutter machines of this utility model adopts the principle of electromagnet adsorption, which is not affected by changes in the external ambient temperature and can accurately set the delay time after power failure.

[0030] 2. The present invention provides a power-off delay disconnection device for a rolling shutter machine, which uses supercapacitors with different groups to store electrical energy. Different groups of capacitors are set by DIP switches to store different electrical energy and achieve different precise electromagnet delay power supply time settings.

[0031] 3. The power-off delay disconnection device for rolling shutter machines of this utility model adopts a built-in detection switch to detect the disconnection of the swing arm, and can output an alarm signal. At the same time, it ensures the IP66 protection level and is suitable for outdoor use. Attached Figure Description

[0032] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the embodiments of this utility model will be briefly introduced below.

[0033] Obviously, the accompanying drawings described below are only some of the drawings of the present utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort, but these other drawings also belong to the drawings required for the embodiments of the present utility model.

[0034] Figure 1 This is a schematic diagram of the structure of a power-off delay disconnection device for a rolling shutter machine under power-off conditions, according to Embodiment 1 of this utility model.

[0035] Figure 2 This is a schematic diagram of the internal structure of a power-off delay disconnection device for a rolling shutter machine under the condition of not being powered off, according to Embodiment 1 of this utility model.

[0036] Figure 3 This is a side view of a power-off delay disconnection device for a rolling shutter machine in the power-off state according to Embodiment 1 of this utility model;

[0037] Figure 4 This is a partial structural schematic diagram of a power-off delay disconnection device suitable for a rolling shutter machine according to Embodiment 1 of this utility model;

[0038] Figure 5 This is a partial structural schematic diagram of a power-off delay disconnection device suitable for a rolling shutter machine according to Embodiment 2 of this utility model;

[0039] The attached figures are labeled as follows: 1. Capacitor assembly, 2. Transformer, 3. Electromagnet, 4. Metal block, 5. Mounting plate, 6. Folding plate, 7. Box body, 8. Folding assembly, 9. Roller blind rope, 8.1. Door hinge, 8.2. Spring. Detailed Implementation

[0040] To make the objectives, technical solutions, beneficial effects and significant advancements of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings provided in the embodiments of this utility model.

[0041] Obviously, all the embodiments described are only some embodiments of this utility model, and not all embodiments; based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0042] It should be noted that the terms "first," "second," and "third" (if present), etc., in the specification, claims, and accompanying drawings of the embodiments of this utility model are only used to distinguish different objects and not to describe a specific order. Furthermore, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0043] What needs to be understood is:

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "fixing" and other such terms should be interpreted broadly. For example, it can be a fixed connection, a detachable connection or a movable connection, or it can be integrated; it can be a direct connection, an indirect connection through an intermediate medium, or an invisible signal connection, or even an optical connection; it can be the internal connection of two components or the interaction between two components, unless otherwise explicitly limited.

[0045] Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] It should also be noted that the following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0047] The technical solution of this utility model will now be described in detail with reference to specific embodiments.

[0048] Example 1

[0049] like Figure 1-3 As shown, a power-off delay disconnection device suitable for a rolling shutter machine includes a housing 7, a capacitor assembly 1, a transformer 2, an electromagnet 3, a metal block 4, a mounting plate 5, and a folding plate 6. The capacitor assembly 1 and the transformer 2 are disposed inside the housing 7. The electromagnet 3 is externally powered, and the capacitor assembly 1 is connected to the electromagnet 3 through the transformer 2. The housing 7 and the electromagnet 3 are arranged sequentially from top to bottom on the mounting plate 5. The metal block 4 is disposed on one side of the folding plate 6, and the other side of the folding plate 6 is foldably connected to the mounting plate 5. The metal block 4 can be attracted to the electromagnet 3.

[0050] like Figure 1 and 4As shown, the power-off delay disconnection device for roller shutter machines of this utility model also includes a folding assembly 8. The folding assembly includes a door hinge 8.1 and a spring 8.2. The door hinge 8.1 connects the mounting plate 5 and the folding plate 6, and the spring 8.2 is sleeved on the door hinge 8.1. The spring 8.2 includes a fixing part at the upper end, a spring coil in the middle, and a hook at the lower end. The fixing part is fixed on the mounting plate 5, and the spring coil in the middle is sleeved on the door hinge 8.1. The folding plate 6 is provided with a through hole that matches the hook, and the hook can be connected to the roller shutter rope 9 through the through hole.

[0051] like Figure 5 As shown, capacitor assembly 1 includes four capacitors 1.1 and three switches 1.2. The four capacitors 1.1 can be connected in series or in parallel, and the three switches 1.2 are disposed on the circuit in which the four capacitors 1.1 are connected in series or in parallel.

[0052] In this embodiment, capacitor 1.1 is a supercapacitor.

[0053] In this embodiment, an early warning system and a detection switch are also included. The detection switch is mounted on the mounting plate and connected to the early warning system.

[0054] In this embodiment, the detection switch includes a micro switch and a displacement switch.

[0055] In this embodiment, the metal block is an iron disc.

[0056] The usage method of the power-off delay disconnection device for rolling shutter machines in this embodiment is briefly summarized as follows:

[0057] Step 1: When the roller shutter machine is powered on, the external power source is the electromagnet 3, and the hook of the spring 8.2 hooks the roller shutter rope 9.

[0058] Step 2: At this time, the mounting plate 5 and the folding plate 6 are closed, and the electromagnet 3 attracts the metal block 4.

[0059] Step 3: The detection switch detects the state of mounting plate 5 and folding plate 6. Since the state of mounting plate 5 and folding plate 6 has not changed, the warning system is not triggered.

[0060] Step 4: The power to the roller shutter machine is cut off, the external power supply stops supplying power to electromagnet 3, and the capacitor 1.1 supplies power to electromagnet 3 instead.

[0061] Step 5: The amount of electricity stored in capacitor 1.1 is pre-calculated and designed through the series and parallel connection of switches and multiple sets of capacitors. Therefore, when the preset time is reached, the electricity in capacitor 1.1 is depleted.

[0062] Step 6: In the power-off state, the folding plate 6 is subjected to the force of the spring 8.2 and the pulling force of the manual winch system of the roller shutter or air inlet, causing the electromagnet 3 and the metal block 4 to separate.

[0063] Step 7: The roller blind cord 9 detaches from the hook, and the roller blind opens;

[0064] Step 8: The detection switch detects changes in the state of mounting plate 5 and folding plate 6, triggering the early warning system;

[0065] Step 9: Workers identify warnings and take intervention measures.

[0066] In the description process of the above instruction manual:

[0067] The terms "this embodiment," "this utility model embodiment," "as shown," "further," and "further improved technical sub-scheme," etc., refer to specific features, structures, materials, or characteristics described in the embodiment or example that are included in at least one embodiment or example of the present utility model. In this specification, the illustrative expressions of the above terms are not necessarily directed at the same embodiment or example, and the specific features, structures, materials, or characteristics described can be combined or combined in any suitable manner in one or more embodiments or examples. Furthermore, without causing contradiction, those skilled in the art can combine or combine the different embodiments or examples described in this specification and the features of the different embodiments or examples.

[0068] Finally, it should be noted that:

[0069] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it;

[0070] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. Non-essential improvements, adjustments or substitutions made by those skilled in the art based on the content of this specification are all within the scope of protection claimed by the present invention.

Claims

1. A power-off delay disconnection device suitable for roller shutter machines, characterized in that, The device includes a housing, a capacitor assembly, a transformer, an electromagnet, a metal block, a mounting plate, and a folding plate. The capacitor assembly and the transformer are housed within the housing. The electromagnet is powered externally, and the capacitor assembly is connected to the electromagnet via the transformer. The housing and the electromagnet are arranged sequentially from top to bottom on the mounting plate. The metal block is located on one side of the folding plate, and the other side of the folding plate is foldably connected to the mounting plate. The metal block can be attracted to the electromagnet.

2. The power-off delay disconnection device for a rolling shutter machine as described in claim 1, characterized in that, It also includes a folding assembly, which includes a door hinge and a spring, the door hinge connecting the mounting plate and the folding plate, and the spring being sleeved on the door hinge.

3. The power-off delay disconnection device for a rolling shutter machine as described in claim 2, characterized in that, The spring includes a fixed part at the upper end, a spring coil in the middle, and a hook at the lower end. The fixed part is fixed to the mounting plate, the spring coil in the middle is sleeved on the door hinge, and the folding plate is provided with a through hole that matches the hook. The hook can be connected to a roller blind rope through the through hole.

4. The power-off delay disconnection device for a rolling shutter machine as described in claim 1, characterized in that, The capacitor assembly includes multiple capacitors and multiple switches. The multiple capacitors can be connected in series or in parallel, and the multiple switches are disposed on the circuit in which the multiple capacitors are connected in series or in parallel.

5. A power-off delay disconnection device suitable for a rolling shutter machine as described in claim 4, characterized in that, The capacitor in question is a supercapacitor.

6. A power-off delay disconnection device suitable for a rolling shutter machine as described in claim 1, characterized in that, It also includes an early warning system and a detection switch, the detection switch being mounted on the mounting plate and connected to the early warning system.

7. A power-off delay disconnection device suitable for a rolling shutter machine as described in claim 6, characterized in that, The detection switch includes a micro switch and a displacement switch.

8. A power-off delay disconnection device suitable for a rolling shutter machine as described in claim 1, characterized in that, The metal block is an iron disc.

Images