A secondary power supply delay device

Abstract

The present application discloses a secondary power supply delay device for providing secondary delayed power supply to an initiating load after the control system is separated and the power is cut off. The device includes an energy storage circuit; an initiating circuit electrically connected to the energy storage circuit; a delay circuit electrically connected to the initiating circuit and a trigger circuit respectively; and further includes a power transfer control circuit arranged between the energy storage circuit and the initiating circuit, and a switch control device for controlling the operation of the power transfer control circuit and the trigger circuit; the switch control device can be triggered after the stand-alone product is separated from its control system, thereby controlling the power transfer control circuit to conduct so that the energy storage circuit and the initiating circuit are conducted and charged; at the same time, the trigger circuit is controlled to work so that the delay circuit sends a delay control signal to the initiating circuit, thereby realizing the delayed operation of the initiating circuit. The device of the present application can provide a reliable and stable delayed power supply to the initiating load after it is separated from the control system, thereby ensuring the reliable operation of the product.

Description

Technical Field

[0001] The present invention belongs to the technical field of power supply, and in particular relates to a secondary power supply device and method with a delay function, which is suitable for secondary delayed power supply of electromechanical products after being disconnected from a system power supply. Background Art

[0002] Reliable power supply is crucial for many electromechanical products. This is especially true for standalone products, such as explosive loads, that still require power to operate even after being separated from the control system. Ensuring reliable power supply even after separation from the control system is a key area of ​​focus for current power supply technology.

[0003] To ensure reliable power supply even when separated from the control system, standalone products are often equipped with separate batteries or other power generation devices, such as transducers made from piezoelectric ceramics or chemical power sources. While these technical measures address the power supply issue for standalone products, they also create other challenges. For the entire system, the control system manages each standalone product. This means that the operation of a standalone product is controlled by the control system. If a standalone product has its own power source, its operation can be independent of the control system. This is unacceptable in system design.

[0004] In the prior art, there is a power supply mode that uses a delayed control method to supply power by setting up an energy storage circuit, that is, the conventional power supply comes from the control system and is supplied by the energy storage circuit after the power is cut off. For example, Chinese patent document CN103064497A discloses a power supply delay power supply device for providing delayed power supply to the bypass controller during power outages. The power supply device includes a first isolation circuit, a main energy storage capacitor, a power monitoring module, a delayed power supply module, a switching circuit, and a switching circuit connected between the mainboard power supply circuit and the main load. Among them, the main power supply for the mainboard power supply circuit charges the main energy storage capacitor through the first isolation circuit, the power monitoring module is used to monitor the main power supply voltage, control the opening and closing of the delayed power supply module and the opening and closing of the switching circuit, the delayed power supply module is used to convert the voltage of the main energy storage capacitor into the bypass controller working voltage, and the switching circuit is used to switch the bypass controller working voltage output by the mainboard power supply circuit to the bypass controller working voltage output by the delayed power supply module when the delayed power supply module is started. The above-mentioned delayed power supply device can provide delayed power supply to the bypass controller during power outages.

[0005] However, the above-mentioned power supply delay power supply device is a power supply delay power supply device that provides power-off protection for computers using a single DC power supply input. On the one hand, its delayed power supply is applied to the computer field and belongs to conventional power-off protection power supply. This field is completely different from the conventional power-off protection power supply in that stable, reliable and delayed power supply is required after separation. On the other hand, this secondary power supply under power outage is compared with the stand-alone product that still requires reliable, stable and delayed power supply after separation from the control system. The two have great differences in secondary power supply startup control method, power supply stability and delay reliability. The current conventional power-off protection power supply method cannot meet the requirements of stand-alone products that need to be separated from the control system and further provide stable, reliable and delayed power supply. Summary of the Invention

[0006] In response to at least one defect or improvement need in the prior art, the present invention provides a secondary power supply delay device and method, which can provide reliable and stable delayed power supply to a stand-alone product after it is separated from the control system, thereby ensuring reliable operation of the product.

[0007] To achieve the above object, according to the first aspect of the present invention, a secondary power supply delay device is provided for providing secondary delayed power supply to the detonation load after the control system is separated and powered off. The device comprises

[0008] Tank circuits;

[0009] an initiating circuit electrically connected to the energy storage circuit and configured to receive power from the energy storage circuit;

[0010] a delay circuit, electrically connected to the initiation circuit and a trigger circuit, for outputting a delay control signal to the initiation circuit when the trigger circuit is operating;

[0011] It is characterized in that it also includes a power transfer control circuit arranged between the energy storage circuit and the detonation circuit, and a switch control device for controlling the operation of the power transfer control circuit and the trigger circuit; wherein,

[0012] The switch control device can be triggered after the detonating load is separated from its control system, thereby controlling the power transfer control circuit to be turned on so that the energy storage circuit and the detonating circuit are turned on and charged; at the same time, the trigger circuit is controlled to work so that the delay circuit sends a delay control signal to the detonating circuit, thereby realizing the delayed operation of the detonating circuit.

[0013] As a further improvement of the present invention, the power transfer control circuit has a power transfer switch, which is electrically connected to the switch control device, and the power transfer control circuit is disconnected and connected by driving the power transfer switch to open and close.

[0014] As a further improvement of the present invention, a trigger switch is provided on the trigger circuit, which is electrically connected to the switch control device, and the operation of the trigger circuit is realized by driving the trigger switch to turn on.

[0015] As a further improvement of the present invention, the ignition circuit includes a field effect transistor and multiple capacitors connected in parallel with each other, wherein the multiple capacitors connected in parallel are electrically connected to the energy storage circuit through the above-mentioned power conversion control circuit, and are used to receive the power of the energy storage circuit after being turned on. The field effect transistor is connected to the delay circuit, and is used to receive the delay signal sent by the delay circuit and then be turned on to realize the delay operation of the ignition circuit.

[0016] As a further improvement of the present invention, the switch control device includes a main body and a switching switch arranged on the main body, and the switching switch is electrically connected to the power transfer control circuit and the trigger circuit respectively, and is used to control the conduction of the power transfer control circuit and the trigger circuit.

[0017] As a further improvement of the present invention, the transfer switch includes multiple contacts, elastic sheets, a cavity, a spring, a pin shaft, a switch body, and a contact plate, wherein the body is a hollow structure, and a contact plate with multiple through holes in the axial direction is provided on its inner wall, one end of the multiple contacts passes through the through holes on the contact plate and then extends into the hollow cavity, the pin shaft passes through the hollow cavity, the cavity is provided at one end of the pin shaft located in the hollow cavity, the elastic sheet is placed in the cavity, and the other end of the pin shaft in the hollow cavity is sleeved with the spring, one end of the spring abuts against one end of the cavity, and the other end abuts against the end portion of the hollow cavity of the body, when the axial movement of the pin shaft can drive the axial movement of the elastic sheet in the cavity, it can alternately realize that some of the multiple contacts extending into the hollow cavity are in contact with the elastic sheet and are conductive, while some contacts are not in contact with the elastic sheet and are conductive, thereby forming a control circuit that can be conductive or non-conductive.

[0018] As a further improvement of the present invention, a slide pin, a drive spring and a locking pin are further provided on the main body, wherein the slide pin is columnar and is sleeved with a compression spring. One end of the slide pin abuts against the end of the pin shaft, and the other end is provided with a locking mechanism. When the locking mechanism is unlocked, the slide pin is disengaged from the abutment with the pin shaft, and the pin shaft moves axially under the action of the spring, thereby realizing the change of the contact in contact with the elastic sheet, so that the control circuit changes between conductive or non-conductive.

[0019] As a further improvement of the present invention, there are multiple contact plates arranged circumferentially on the inner wall of the hollow cavity. Correspondingly, there are also multiple elastic sheets corresponding one-to-one to each contact plate, thereby forming multiple control circuits that can be conductive or non-conductive.

[0020] As a further improvement of the present invention, at least one control circuit is electrically connected to the power transfer switch of the power transfer control circuit, and the on-off control of the power transfer switch of the power transfer control circuit is achieved by the conduction or non-conduction of the control circuit; or at least one control circuit is electrically connected to the trigger switch on the trigger circuit, and the on-off control of the trigger switch on the trigger circuit is achieved by the conduction or non-conduction of the control circuit.

[0021] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0022] (1) The secondary delayed power supply device provided by the present invention is provided with a power transfer control circuit between the energy storage circuit and the ignition circuit, and a switch control device for controlling the operation of the power transfer control circuit and the trigger circuit. After the ignition load is separated from its control system, the switch control device is triggered to control the power transfer control circuit to be turned on, so that the energy storage circuit and the ignition circuit are turned on and charged; at the same time, the trigger circuit is controlled to work so that the delay circuit sends a delay control signal to the ignition circuit as the starting point of the delay circuit. The delay circuit starts to delay according to the set delay time. After the delay time is reached, the ignition circuit is turned on and the electricity stored in the capacitor is instantly released to the load, thereby realizing the delayed operation of the ignition circuit.

[0023] (2) The secondary delayed power supply device provided by the present invention has a power transfer control circuit provided with a power transfer switch, which is electrically connected to the switch control device, and the power transfer control circuit is disconnected and connected by driving the power transfer switch to open and close. At the same time, a trigger switch is provided on the trigger circuit, which is electrically connected to the switch control device, and the trigger circuit is operated by driving the trigger switch to open. Both are controlled by the switch control device at the same time, and are electrically connected to the power transfer control circuit and the trigger circuit respectively, to control the conduction of the power transfer control circuit and the trigger circuit, thereby realizing unified control of charging energy storage and delay control, and can realize delayed power supply more accurately and effectively.

[0024] (3) The secondary delayed power supply device provided by the present invention, wherein the switching switch provided in the power transfer control circuit, is structurally such that the axial movement of the pin shaft on the axial direction of the body can drive the axial movement of the elastic sheet in the cavity, and can alternately realize that some of the multiple contacts extending into the hollow cavity of the body are in contact with the elastic sheet and in conduction, while some contacts are not in contact with the elastic sheet and in conduction, thereby forming a control circuit that can be conductive or non-conductive, thereby controlling the power transfer control circuit and the trigger circuit. The switching switch has an ingenious structural design, is reliable and stable, and is particularly suitable for the disconnection control of a stand-alone product after it is separated from the control system and powered off. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A circuit functional block diagram of a secondary power supply delay device provided in one embodiment of the present application;

[0027] Figure 2 A circuit diagram of a secondary power supply delay device provided in one embodiment of the present application;

[0028] Figure 3 A schematic structural diagram of a secondary power supply delay device in a first state provided by an embodiment of the present application;

[0029] Figure 4 A schematic diagram of the post-conversion structure of a secondary power supply delay device provided in one embodiment of the present application;

[0030] Figure 5 A cross-sectional view of the structure of a transfer switch of a secondary power supply delay device provided by one embodiment of the present application;

[0031] Figure 6 A side view of a transfer switch of a secondary power supply delay device provided in one embodiment of the present application;

[0032] Figure 7 A top view of a switching switch of a secondary power supply delay device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0033] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0034] The terms "first," "second," "third," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish between different objects, not to describe a particular order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0035] Some stand-alone products that still need power supply to work after being separated from the control system, such as some missile-borne electromechanical products, have an initiation circuit and a corresponding initiation load. These are the stand-alone products referred to in this application, more specifically, electric detonators. Stand-alone products or initiation loads are separated from the control system after launch and cannot be powered and controlled by the control system. In order for the initiation load to operate stably and reliably, it needs to be powered by itself. Figure 1 As shown, a secondary power supply delay device provided in one embodiment of the present application is used to provide secondary delayed power supply to a stand-alone product after it is separated from the control system and the power is cut off. The device can trigger the corresponding start-up conditions after being separated from the control system. It can not only power itself through energy storage, but also delay the release of the energy storage circuit through its own delay control circuit, thereby achieving stable and reliable operation of the stand-alone product.

[0036] Specifically, if Figure 1 As shown, the secondary power supply delay device of this embodiment includes an energy storage circuit 100, a power transfer control circuit 200, a trigger circuit 300, a delay circuit 400, an initiation circuit 500 and a switch control device 600.

[0037] like Figure 1 and 2 As shown, the energy storage circuit 100 is used to store the electrical energy provided by the control system and to power the delay circuit. The energy storage circuit 100 includes a number of capacitors connected in parallel to form a large capacitor for storing electricity. In an optional embodiment, 20 energy storage capacitors are connected in parallel, namely C1-C20. Of course, the number of capacitors is not limited in this embodiment. Optionally, the capacitance can be selected according to specific needs. In one embodiment, a 47μF capacitor is selected, but each capacitor is not limited to the above capacity. The selection of the specific capacitor must ensure sufficient capacity on the one hand, and on the other hand, ensure that the capacitor can withstand a large voltage without being damaged. Optionally, a diode V1 and a resistor R1 are connected in series at the input end of the capacitor, and a diode V3 can also be connected in series at the output end of the capacitor, forming the energy storage circuit 100 as a whole.

[0038] like Figure 1 and 2As shown, the transfer control circuit 200 is arranged between the energy storage circuit 100 and the detonating circuit 500, and is used to control the conduction between the energy storage circuit 100 and the detonating circuit 500. The transfer control circuit 200 includes a transfer switch, and the conduction between the energy storage circuit 100 and the detonating circuit 500 is achieved by opening and closing the transfer switch. There can be one or more transfer switches, and multiple transfer switches can be connected in parallel or in series. The control method can be separate control or unified control. In a preferred embodiment, as Figure 2 As shown, there are two transfer switches, namely transfer switch S1.1 and transfer switch S1.2, which are connected in parallel. By using multiple transfer switches in parallel, redundancy can be set to ensure the reliability of transfer control. Optionally, the transfer control circuit 200 can also include a switching diode V2 and a resistor R3 connected in series.

[0039] like Figure 1 and 2 As shown, the initiation circuit 500 serves as a working circuit for initiating the operation of a standalone product. After receiving power from the energy storage circuit 100 and after the delay time set by the delay circuit has expired, it operates to instantly release the power stored in the capacitor to the load. In a preferred embodiment, the initiation circuit 500 includes a field-effect transistor (FET) V4 and a connected capacitor. The capacitors may be multiple, such as two capacitors C22-C23, connected in parallel. After the initiation circuit 500 and the energy storage circuit 100 are connected, the power in the energy storage circuit is released to the parallel capacitors via the power transfer control circuit, thereby storing the power supplied by the energy storage circuit 100. One end of the FET V4 is connected to the delay circuit 400. When the delay time of the delay circuit expires, the FET V4 is controlled to conduct, causing the initiation circuit to operate.

[0040] like Figure 1 and 2 As shown, trigger circuit 300 is configured to turn on upon receiving a trigger condition. Preferably, it includes a trigger switch S1.3, which is activated to turn trigger circuit 300 on and off. Optionally, the trigger circuit also includes a resistor R10 and a capacitor C26 connected in parallel, and more preferably, includes a resistor R9 connected in series with R10. Closing trigger switch S1.3 activates the trigger circuit and activates the delay circuit 400 connected thereto.

[0041] like Figure 1 and 2As shown, the delay circuit 400 includes a linear regulator N1, a delay device CPLD and a silicon oscillator U1 externally connected to the CPLD. The linear regulator (for example, MAX1615 can be selected) is connected to the energy storage circuit 100, and optionally, a resistor R2 and a parallel capacitor are connected in series between the linear regulator N1 and the energy storage circuit 100 to prevent the energy storage circuit from having a large current and burning out the linear regulator. The linear regulator is used to convert the voltage of the energy storage circuit 100 into the voltage output required by the CPLD, for example, to 3.3 volts, to power the CPLD. In a preferred embodiment, the delay device can be selected as XCR3064XL-10VQ441, or other applicable delay devices. As Figure 2 As shown, in this embodiment, through the programming port of CPLD ( Figure 2 The TDO, TCK, TMS, and TD1 (shown in FIG) are used to input a set delay time into the CPLD. The CPLD externally includes a trigger circuit and a silicon oscillator, which are connected to field-effect transistor V4 in the initiation circuit 500. The silicon oscillator serves as the CPLD's clock, providing a reference for CPLD timing. In an alternative embodiment, the silicon oscillator is a MAX7375. After trigger circuit 300 is activated, delay circuit 400 is activated, and the delay information output by the CPLD is sent to field-effect transistor V4.

[0042] like Figure 1-7 As shown, in this solution, the key to the delayed operation of the detonating circuit is the provision of a switch control device 600, which is used to control the conduction between the energy storage circuit 100 and the detonating circuit 500, and at the same time control the triggering and starting of the trigger circuit 300.

[0043] like Figure 1-7 As shown, the switch control device 600 in this solution includes a main body 610 and a conversion switch 620 arranged on the main body. The conversion switch 620 is electrically connected to the power conversion control circuit 200 and the trigger circuit 300 respectively, and is used to control the conduction of the power conversion control circuit 200 and the trigger circuit 300.

[0044] like Figure 3-7 As shown, the transfer switch 620 includes multiple contacts 621, an elastic sheet 622, a cavity 623, a spring 624, a pin 625, a switch body 626, and a contact plate 627. The body 610 is a hollow structure, and the inner wall of the body has a contact plate 627 with multiple through holes in the axial direction. One end of the multiple contacts 621 passes through the through holes in the contact plate 627 and then extends into the hollow cavity.

[0045] Pin 625 passes through the hollow cavity of the body, with both ends extending outside the body. One end is locked by a clamp 628, and the other end abuts an external device. Cavity 623 is located at one end of pin 625 within the hollow cavity, and contains an elastic sheet 622. Pin 625 within the hollow cavity is sleeved with a pin spring 624 on the other end. One end of pin spring 624 abuts one end of cavity 623, and the other end abuts the inner wall of the hollow cavity of body 610.

[0046] like Figure 5 As shown, the contact plate 627 has a plurality of through holes arranged in sequence along the axial direction ( Figure 5 (shown vertically in the figure), the corresponding multiple contacts 621 respectively pass through the through holes and extend into the hollow cavity, and just contact or can contact the elastic sheet 624 inside. Optionally, there are three contacts 621, and correspondingly, there are also three openings on the contact plate 627, and each contact hole corresponds to a corresponding contact. Optionally, there can be multiple contact plates, for example, 2-4 or more, and the multiple contact plates can be distributed circumferentially within the inner wall of the hollow cavity. In one embodiment, there are 4 contact plates. Accordingly, each contact plate 627 corresponds to an elastic sheet 622, and multiple contact plates correspond to multiple elastic sheets 622.

[0047] like Figure 5 , the pin 625 can move axially in the hollow cavity (in Figure 5 In one embodiment, the pin spring 624 nested within the pin 625 is compressed during upward movement, causing, for example, two contacts 621 at the upper end of the contact plate 627 to contact the elastic sheet 622, while the contact 621 at the lower end of the contact plate 627 is disconnected from the elastic sheet 622. In another embodiment, for example, the spring pin 624 pushes the pin 625 downward, causing the cavity 623 to move downward, disconnecting the contact 621 at the upper end of the contact plate 627 from the elastic sheet 622, and allowing the two contacts 621 in the middle and lower ends to contact the elastic sheet 622. By moving the elastic sheet 622 up and down, different contacts 621 come into contact with the elastic sheet 622, enabling the switching of different control circuits on the transfer switch.

[0048] In one embodiment, the main body 610 is further provided with a slide pin 630, a drive spring 640 and a locking pin 650, wherein the slide pin 630 is cylindrical, and the drive spring 640 is sleeved on the slide pin main body column, preferably in a compressed state. One end of the slide pin 630 abuts against the end of the pin shaft 625, and the other end is provided with a locking pin 656100. When the locking pin 660 is unlocked, the slide pin 630 is disengaged from the abutment with the pin shaft 625, and the pin shaft 625 moves axially under the action of the pin shaft spring 624, thereby realizing the change of the contact in contact with the elastic sheet 622, so that the control circuit changes between conducting and non-conducting. Figure 3 and 4 As shown, in a preferred embodiment, an annular groove is provided on the body of the slide pin 630, and the locking pin 660 matches the annular groove on the slide pin 630. When the locking pin 660 is inserted into the annular groove on the slide pin 630, the slide pin 630 is locked, and after the locking pin 660 is pulled out, the lock of the slide pin 630 is released, and the drive spring 640 is actuated to drive the slide pin 630 to move axially and separate from the body.

[0049] like Figure 3-5 As shown, the end of the pin 625 abuts against the end of the slide pin 630. When the slide pin 630 moves axially out of the body, the end constraint of the pin 625 is released, and the pin 625 is driven to move in its axial direction by the pin spring 624.

[0050] In one embodiment, Figure 5 As shown, the end of the pin 625 abuts against the end of the slide pin 630 and is in a constrained state, and the pin spring 624 is in a compressed state.

[0051] When the pin shaft 625 moves axially, it can drive the elastic sheet 622 in the cavity 623 to move axially, so that some of the multiple contacts 627 extending into the hollow cavity can alternately contact and conduct with the elastic sheet 622, while some contacts do not contact and conduct with the elastic sheet 622, thereby forming a control circuit that can be conductive or non-conductive.

[0052] Optionally, the transfer switch S1.1 and the transfer switch S1.2 in the transfer control circuit are connected in parallel to improve circuit reliability. Even if one transfer switch is damaged, the transfer control circuit can still operate. The transfer time (i.e., the charging time of the capacitor in the detonation circuit 500) can be calculated according to τ = RC.

[0053] Optionally, further, the transfer switch S1.4 is led out separately, and the state of the switch control device can be confirmed by testing its on-off function.

[0054] Optionally, the energy storage circuit 100 is connected to the power supply of the control system, the slide pin 630 in the switch control device is locked by the locking pin 650, the slide pin 630 locks the transfer switch 620, and the middle contact 621 and the lower contact 621 lead wires of the transfer switch 620 are connected to the circuit. At this time, the four circuits of the transfer switch 620 are all in the disconnected state, and the electricity in the energy storage circuit 100 cannot power the delay circuit 400 and the ignition circuit 500.

[0055] After the switch control device 600 is installed in the product, the end of the slide pin 630 generally rests on the product. At this time, after the locking pin 650 is pulled out, the slide pin 630 is still unable to move due to the constraint.

[0056] When the delayed power supply device of the present application is disconnected from the power supply of the control system, the capacitor in the energy storage circuit 100 still stores electrical energy. After the delayed power supply device is ejected from the product, the switch control device 600 is freed from the product's constraints. The compressed drive spring 640 pushes the slide pin 630 to move, releasing the constraints on the transfer switch 620. The transfer switch 620, pushed by its own spring 624, switches. At this time, all four circuits of the transfer switch 620 switch from the off state to the on state, and the power transfer control circuit 200 begins to connect, transferring the power of the energy storage circuit 100 to the detonating circuit 500, which begins charging. At the same time, the trigger circuit 300 is switched by the switching switch 620, triggering the delay circuit 400 to start working. As the starting point of the delay circuit 400, the CPLD of the delay circuit 400 starts to delay according to the set delay time. After the delay time is reached, the field effect transistor V4 is turned on. After the field effect transistor is turned on, the detonating circuit 500 immediately releases the electricity stored in the capacitor to the load.

[0057] It should be noted that for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

[0058] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0059] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some service interface, and the indirect coupling or communication connection of the device or unit can be electrical or other forms.

[0060] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0061] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0062] The above is only an exemplary embodiment of the present disclosure and cannot be used to limit the scope of the present disclosure. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the specification and practicing the disclosure herein, those skilled in the art will easily think of the implementation scheme of the present disclosure. This application is intended to cover any variation, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the art that are not recorded in the present disclosure. The description and examples are to be regarded as exemplary only, and the scope and spirit of the present disclosure are defined by the claims.

[0063] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] It will be easily understood by those skilled in the art that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A secondary power supply delay device for providing secondary delayed power supply to an initiation load after power is cut off from a control system, the device comprising: Energy storage circuit (100); an initiating circuit (500), electrically connected to the energy storage circuit (100) and configured to receive power from the energy storage circuit (100); A delay circuit (400) is electrically connected to the detonation circuit (500) and a trigger circuit (300), and is used to output a delay control signal to the detonation circuit (500) when the trigger circuit (300) is in operation; It is characterized in that it further comprises a power transfer control circuit (200) arranged between the energy storage circuit (100) and the detonation circuit (500), and a switch control device (600) for controlling the operation of the power transfer control circuit (200) and the trigger circuit (300); wherein, The switch control device (600) can be triggered after the detonating load is separated from its control system, thereby controlling the power transfer control circuit (200) to be turned on so that the energy storage circuit (100) and the detonating circuit (500) are turned on and charged; at the same time, the trigger circuit (300) is controlled to operate so that the delay circuit can send a delay control signal to the detonating circuit (500), thereby realizing the delayed operation of the detonating circuit (500).

2. The secondary power supply delay device according to claim 1, wherein: The power transfer control circuit (200) has a power transfer switch, which is electrically connected to the switch control device (600). The switch control device (600) drives the power transfer switch to open and close, thereby realizing the disconnection and conduction of the power transfer control circuit (200).

3. The secondary power supply delay device according to claim 1, wherein: The trigger circuit (300) is provided with a trigger switch, which is electrically connected to the switch control device (600). The switch control device (600) drives the trigger switch to turn on, thereby realizing the operation of the trigger circuit (300).

4. The secondary power supply delay device according to claim 1, wherein: The detonation circuit (500) comprises a field effect transistor and a plurality of capacitors connected in parallel with each other, wherein the plurality of capacitors connected in parallel are electrically connected to the energy storage circuit (100) via the power transfer control circuit (200) and are used to receive the electric quantity of the energy storage circuit (100) after being turned on, and the field effect transistor is simultaneously connected to the delay circuit (400) and is used to receive the delay signal sent by the delay circuit (400) and then be turned on, thereby realizing the delay operation of the detonation circuit (500).

5. The secondary power supply delay device according to claim 1, wherein: The switch control device (600) comprises a body (610) and a transfer switch (620) arranged on the body (610); the transfer switch (620) is electrically connected to the power transfer control circuit (200) and the trigger circuit (300), respectively, and is used to control the conduction of the power transfer control circuit (200) and the trigger circuit (300).

6. The secondary power supply delay device according to claim 5, wherein: The switching switch (620) includes a plurality of contacts (621), an elastic sheet (622), a cavity (623), a pin spring (624), a pin (625), a switch body (626) and a contact plate (627), wherein the body (610) is a hollow structure, and the inner wall thereof is provided with the contact plate (627) with a plurality of through holes in the axial direction, one end of the plurality of contacts (621) passes through the through holes on the contact plate (627) and then extends into the hollow cavity, the pin (625) passes through the hollow cavity, and the cavity (623) is provided at one end of the pin (625) located in the hollow cavity, and the elastic sheet is placed in the cavity. (622), the pin shaft (625) in the hollow cavity is sleeved with the pin shaft spring (624) at the other end, one end of the pin shaft spring (624) is in contact with one end of the cavity (623), and the other end is in contact with the end of the hollow cavity of the body (610). When the pin shaft (625) moves in the axial direction, the elastic sheet (622) in the cavity (623) can be driven to move in the axial direction, so that some of the multiple contacts (621) extending into the hollow cavity can be in contact with the elastic sheet (622) and in conduction, while some of the contacts are not in contact with the elastic sheet (622), thereby forming a control circuit that can be conductive or non-conductive.

7. The secondary power supply delay device according to claim 6, wherein: The main body (610) is further provided with a slide pin (630), a drive spring (640) and a locking pin (650), wherein the slide pin (630) is columnar and sleeved with the drive spring (640), one end of the slide pin (630) is in contact with the end of the pin shaft (625), and the other end is provided with the locking pin (650), when the locking pin (650) is unlocked, the slide pin (630) is disengaged from the contact with the pin shaft (625), and the pin shaft (625) moves axially under the action of the pin shaft spring (624) and then drives the elastic sheet (622) to move axially, so that the elastic sheet (622) contacts with contacts at different heights in the axial direction, so that the control circuit changes between conducting and non-conducting.

8. The secondary power supply delay device according to claim 6 or 7, wherein: There are multiple contact plates (627) arranged circumferentially on the inner wall of the hollow cavity. Correspondingly, there are also multiple elastic sheets (622), corresponding one-to-one to each contact plate (627), thereby forming multiple control circuits that can be conductive or non-conductive.

9. The secondary power supply delay device according to claim 8, wherein: At least one control circuit is electrically connected to the power transfer switch of the power transfer control circuit (200), and the power transfer switch of the power transfer control circuit (200) is controlled to be on or off by the conduction or non-conduction of the control circuit; and / or At least one control loop is electrically connected to the trigger switch on the trigger circuit (300), and the on / off control of the trigger switch on the trigger circuit (300) is achieved by conducting or not conducting the control loop.

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