Small-sized AC / DC dual-purpose dual-power automatic switcher
By designing a small AC/DC dual-power automatic switcher, the problem of expensive and bulky dual-power switching in the existing technology is solved, and miniaturized, multi-functional, low-power dual-power switching is achieved, which is suitable for uninterrupted power supply of power communication equipment.
Patent Information
- Application Number
- CN202422647284.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-10-31
AI Technical Summary
The static transfer switch devices with seamless switching in the existing technology are expensive, the control of automatic transfer switches is not precise and the size is large, resulting in a lack of multifunctional, high-current, low-power, low-cost small dual-way power switching devices in power distribution and communication equipment.
A small AC/DC dual-power automatic switcher is designed. It adopts a small shell structure, including a cover and a bottom cover, with upper and bottom circuit boards inside, which are connected to the current switching module and the power input and output terminals respectively. It combines the power module, voltage regulation module, drive module and delay module to realize two-step delayed switching, which is suitable for automatic switching of AC or DC power supply.
It realizes miniaturized dual-circuit power switching, adapts to larger current input, wide voltage range, and provides uninterrupted power supply regardless of power polarity. It is suitable for power communication room equipment and reduces the power consumption and cost of the device.
Smart Images
Figure CN223472082U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to small -size power supply equipment application control technical field, especially in kind of small -size AC and DC dual -purpose dual power automatic switch. BACKGROUND
[0002] In some important power consumption occasion cannot allow to appear power outage, such as chemical plant's production device, hospital's operating room, bank's monitoring equipment, power distribution's communication control etc. must guarantee uninterrupted power supply, once the power failure accident occurs then the consequence is unbearable to imagine, for guaranteeing important power consumption equipment's continuous power supply generally adopts dual or multichannel power supply to power supply, when adopting dual power supply power supply will one power supply as main power supply, will another power supply as standby power supply, in dual power supply all has electricity by main power supply connects external load power supply, in main power supply power failure will standby power supply connect external load power supply, waits for main power supply to restore normal, still returns to main power supply power supply state, for the switching power supply of dual power supply has had more type automatic device currently, but some seamless switching static transfer switch device price is relatively expensive, some automatic switching switch control is not too delicate and bulky, in some power distribution communication equipment need quantity larger multifunction, large current, low power consumption, low -priced small -size dual -channel power supply switching device is less seen, is worth causing the attention of production enterprise. CONTENT OF THE UTILITY MODEL
[0003] The utility model discloses a kind of small -size AC and DC dual -purpose dual power automatic switch, to solve some seamless switching static transfer switch device price is relatively expensive, some automatic switching switch control is not too delicate and bulky, in some power distribution communication equipment need quantity larger multifunction, large current, low power consumption, low -priced small -size dual -channel power supply switching device is less seen.
[0004] In order to achieve the above object, the utility model provides the following technical scheme: A small -size AC and DC dual -purpose double power automatic switch, including the shell, and the shell includes the cover and the bottom cover, install upper layer circuit board in the cover, the top surface of the bottom cover is installed with bottom layer circuit board, the first switching module, second switching module for current switching are fixedly connected on the bottom layer circuit board, the both ends of bottom layer circuit board are equipped with power input terminal and power output terminal, the top surface of bottom layer circuit board is fixedly connected with front row pin and rear row pin, the top of front row pin and rear row pin is welded with the bottom surface of upper layer circuit board and is electrically connected, the upper side surface of power input terminal of bottom layer circuit board is screw -threaded with input fixed screw, the rear side of power input terminal is equipped with power input interface, the two input ends of power input terminal are INPUTA and INPUTB, the two pins of INPUTA include A1 and A2 respectively, the A -way power supply is connected to the INPUTA, the two pins of INPUTB include B1 and B2 respectively, the B -way power supply is connected to the INPUTB, the two effective output ends of power output terminal are OUTPUT, the two pins of OUTPUT include O1 and O2 respectively, the upper side surface of power output terminal is output fixed screw 4a, and the front side is power output interface 4b.
[0005] Preferably, the cover is provided with a cover clamping hole in the middle of the lower side, and the bottom cover 2 is provided with a bottom cover clamping head in the middle of the upper side, which is matched with the cover clamping hole.
[0006] Preferably, the bottom cover is provided with a mounting clamping hole in the middle of the bottom, and the bottom cover is provided with a mounting clamping head below the rear side.
[0007] Preferably, the upper layer circuit board is fixedly connected with a power module, the power module is electrically connected with a voltage regulating module, the voltage regulating module is electrically connected with a first drive module, the first drive module is connected with the control end pin C1 of the first switching module, the voltage regulating module is electrically connected with a delay module, the delay module is electrically connected with a second drive module, the second drive module is connected with the control end pin C2 of the second switching module, the INPUTA pin is electrically connected with an A -way input indicator, the INPUTB pin is electrically connected with a B -way input indicator, and the OUTPUT pin is electrically connected with a power output indicator.
[0008] Preferably, the main lines of A1 pin and A2 pin of the input terminal INPUTA of the power input terminal are connected with J3-a contact and J4-a contact of the second switch module respectively, the J3-o contact of the second switch module is electrically connected with the J1-a contact of the first switch module, and the J4-o contact of the second switch module is electrically connected with the J2-a contact of the first switch module; the main lines of B1 pin and B2 pin of the INPUTB pin of the power input terminal are electrically connected with J1-b contact and J2-b contact of the first switch module respectively, the J1-o contact of the first switch module is electrically connected with the O1 pin of the OUTPUT pin of the power output terminal, and the J2-o contact of the first switch module is electrically connected with the O2 pin of the OUTPUT pin of the power output terminal.
[0009] Preferably, the auxiliary lines of A1 pin and A2 pin of the INPUTA of the power input terminal are electrically connected with the power module and the A input indicator lamp respectively, the B1 pin and B2 pin of the INPUTB of the power input terminal are electrically connected with the B input indicator lamp; the O1 pin and O2 pin of the OUTPUTA pin of the power input terminal are electrically connected with the power output indicator lamp.
[0010] Preferably, the J1-o contact and the J1-b contact of the first switch module are connected, and the J2-o contact and the J2-b contact of the first switch module are connected in the static state, the B1 pin of the INPUTB pin of the power input terminal is connected with the O1 pin of the OUTPUT pin of the power output terminal, the B2 pin of the INPUTB pin is connected with the O2 pin of the OUTPUT pin of the power output terminal, and the INPUTA pin of the power input terminal is not connected with the OUTPUT pin of the power output terminal.
[0011] Preferably, the J1-o contact and the J1-a contact of the first switch module are connected, and the J2-o contact and the J2-a contact of the first switch module are connected after the first switching action, the J3-o contact and the J3-a contact of the second switch module are connected, and the J4-o contact and the J4-a contact of the second switch module are connected after the second switching action with delay, the A1 pin of the INPUTA pin of the power input terminal is connected with the O1 pin of the OUTPUT pin of the power output terminal, the A2 pin of the INPUTA pin is connected with the O2 pin of the OUTPUT pin of the power output terminal, and the INPUTB pin of the power input terminal is not connected with the OUTPUT pin of the power output terminal.
[0012] The utility model discloses a small -size alternating current and direct current dual -purpose dual power automatic switch, has adapted to the input switching of small -size larger current two -way alternating current or direct current power supply, and input power voltage range is wider and does not divide power polarity, brings the use of various electric equipment convenient, is especially applicable to the uninterrupted power supply of electric power communication machine room equipment. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is small -size alternating current and direct current dual -purpose dual power automatic switch appearance structure diagram of example;
[0014] Figure 2 It is small -size alternating current and direct current dual -purpose dual power automatic switch internal structure diagram of example;
[0015] Figure 3 It is small -size alternating current and direct current dual -purpose dual power automatic switch circuit principle block diagram of example;
[0016] Figure 4 It is small -size alternating current and direct current dual -purpose dual power automatic switch first step switching state diagram of example;
[0017] Figure 5 It is small -size alternating current and direct current dual -purpose dual power automatic switch second step switching state diagram of example;
[0018] In the drawing: 1, cover shell;1a, cover shell bayonet;2, bottom cover;2a, bottom cover clamping head;2b, mounting bayonet;3, power input terminal;3a, input fixed screw;3b, power input interface;4, power output terminal;4a, output fixed screw;4b, power output interface;8, mounting clamping head;9, bottom layer circuit board;9a, first switching module;9b, second switching module, 10, upper layer circuit board;10a, A road input indicating lamp, 10b, B road input indicating lamp;10c, power output indicating lamp;10d, power module;10e, voltage regulation module;10f, first drive module;10g, delay module;10h, second drive module, 11, front row pin;12, rear row pin. DETAILED DESCRIPTION
[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.
[0020] The utility model provides a kind of small -size alternating current and direct current dual -purpose dual power automatic switch as Figures 1-5The shown small AC / DC dual-purpose dual power automatic switch includes a shell, and the shell includes a cover 1 and a bottom cover 2, the cover 1 is internally provided with an upper layer circuit board 10, the top surface of the bottom cover 2 is provided with a bottom layer circuit board 9, the bottom layer circuit board 9 is fixedly connected with a first switching module 9a and a second switching module 9b for switching current, the bottom layer circuit board 9 is provided with a power input terminal 3 and a power output terminal 4 at both ends, the top surface of the bottom layer circuit board 9 is fixedly welded with front row pins 11 and rear row pins 12, the top ends of the front row pins 11 and the rear row pins 12 are fixedly welded with the bottom surface of the upper layer circuit board 10, the upper surface of the power input terminal 3 is threadedly connected with an input fixing screw 3a for tightening the input power line, the rear surface of the power input terminal 3 is provided with a power input interface 3b for penetrating the input power line, the power input terminal 3 has four pins, which are A1, A2, B1 and B2, A1 and A2 of the power input terminal 3 are INPUTA pins, and the INPUTA pins are externally connected with an A-path input power, B1 and B2 of the power input terminal 3 are INPUTB pins, and the INPUTB pins are externally connected with a B-path input power, O1 and O2 of the power output terminal 4 are OUTPUT pins, and the OUTPUT pins are externally connected with an electric load, the upper surface of the power output terminal 4 is an output fixing screw 4a for tightening the output power line, and the front surface is a power output interface 4b for penetrating the output power line;
[0021] Firstly, the A-path input power and the B-path input power are two external AC or DC powers which are not common zero, different phase and not the same, the voltage range of the AC power is 85V-305V, and the voltage range of the DC power is 70V-430V; the A-path input power and the B-path input power are not polarized when being connected, the voltage size and polarity of the output are determined according to the switched input power, the upper layer circuit board 10 mainly circulates low-voltage control, driving and switching signals, the bottom layer circuit board 9 mainly circulates high-voltage to provide a maximum 16A working current for the external load, the A-path indicator light is lighted when the INPUTA pin of the power input terminal has electricity, and the B-path indicator light is lighted when the INPUTB pin of the power input terminal has electricity;
[0022] Meanwhile, the rear row pins 12 connect the high voltage input through the power input terminal 3 on the bottom layer circuit board 9 and then transmit to the upper layer circuit board 10, and the front row pins 12 transmit the low-voltage delay, control and driving signals on the upper layer circuit board 10 to the bottom layer circuit board 9.
[0023] As Figure 1 , the middle bottom of the bottom cover 2 is provided with a mounting socket 2b, and the lower rear side of the bottom cover 2 is provided with a mounting socket 8; the mounting socket 2b is first clamped to the guide rail when the whole machine is installed in the distribution box, and then the mounting socket 8 is pushed inward to lock the whole machine shell.
[0024] AsFigure 3 As shown in the figure, the upper layer circuit board 10 is fixedly connected with a power module 10d, the power module 10d is electrically connected with a voltage regulating module 10e, the voltage regulating module 10e is electrically connected with a first driving module 10f, the first driving module 10f is electrically connected with a control end pin C1 of the first switch module 9a, the voltage regulating module 10e is electrically connected with a delay module 10g, the delay module 10g is electrically connected with a second driving module 10h, the second driving module 10h is electrically connected with a control end pin C2 of the second switch module 9b, an INPUTA pin is electrically connected with an A input indicator lamp 10a, and an INPUTB pin is electrically connected with a B input indicator lamp 10b.
[0025] As shown in the figure, Figure 3 the main lines of A1 pin and A2 pin of the INPUTA pin of the power input terminal 3 are respectively electrically connected with J3-a contact and J4-a contact of the second switch module 9b, the J3-o contact of the second switch module 9b is electrically connected with the J1-a contact of the first switch module 9a, and the J4-o contact of the second switch module 9b is electrically connected with the J2-a contact of the first switch module 9a; the main lines of B1 pin and B2 pin of the INPUTB pin of the power input terminal 3 are respectively electrically connected with J1-b contact and J2-b contact of the first switch module 9a, the J1-o contact of the first switch module 9a is electrically connected with O1 pin of the OUTPUT pin of the power output terminal 4, and the J2-o contact of the first switch module 9a is electrically connected with O2 pin of the OUTPUT pin of the power output terminal 4.
[0026] As shown in the figure, Figure 3 the auxiliary lines of A1 pin and A2 pin of the INPUTA pin of the power input terminal 3 are respectively electrically connected with the power module 10d and the A input indicator lamp 10a, the B1 pin and B2 pin of the INPUTB pin of the power input terminal 3 are electrically connected with the B input indicator lamp 10b, and the O1 pin and O2 pin of the OUTPUTA pin of the power input terminal 3 are electrically connected with the power output indicator lamp 10c.
[0027] As shown in the figure, Figure 3As shown, when neither the INPUTA pin nor the INPUTB pin in the power input terminal 3 supplies power or when only the INPUTB pin supplies power, the J1-o contact in the first switching module 9a is connected to the J1-b contact, and the J2-o contact is connected to the J2-b contact, the B1 pin of the INPUTB pin in the power input terminal 3 is connected to the OUTPUT pin O1 pin of the power output terminal 4, the B2 pin of the INPUTB pin is connected to the OUTPUT pin O2 pin of the power output terminal 4, and the INPUTA pin in the power input terminal 3 is not connected to the OUTPUT pin of the power output terminal 4. At this time, the B-way input power is directly connected to the output power supply.
[0028] like Figure 4 As shown, when both the INPUTA pin and the INPUTB pin in the power input terminal 3 are powered or when only the INPUTA pin is powered, when power is turned on, A1 and A2 of the INPUTA pin in the power input terminal 3 convert the input high-voltage AC / DC power into a low-voltage DC working power and supply power to the voltage regulating module 10e. After the voltage regulating module 10e is activated, the circuits of the delay module 10g and the first driving module 10f are connected. After the first driving module 10f is connected to the circuit of the first switching module 9a, the first switching action is first generated. The J1-o contact of the first switching module 9a is disconnected from the J1-b contact and closed with the J1-a contact, and the J2-o contact of the first switching module 9a is disconnected from the J2-b contact and closed with the J2-a contact. At this time, the INPUTA pin and the INPUTB pin in the power input terminal 3 are not connected to the OUTPUT terminal of the power output of the power output terminal 3.
[0029] like Figure 5 As shown, when both the INPUTA pin and the INPUTB pin in the power input terminal 3 are powered or only the INPUTA pin is powered, the second switching action occurs after the first switching action is completed and a delay has elapsed. After the delay module 10g operates, the circuit of the second driver module 10h is connected after a delay of 20ms. After the second driver module 10h operates, the circuit of the second switching module 9b is connected. After the second switching module 9b is powered, the second switching action occurs, and the J3-o contact of the second switching module 9b is disconnected from the J3-b contact. And it is closed with the J3-a contact, the J4-o contact of the second switching module 9b is disconnected from the J4-b contact and closed with the J4-a contact; at this time, the A1 pin of the INPUTA pin in the power input terminal 3 is connected to the pin O1 in the power output terminal, the A2 pin of the INPUTA pin in the power input terminal 3 is connected to the pin O2 in the power output terminal 3, and the INPUTB pin in the power input terminal 3 is not connected to the OUTPUT end of the power output terminal 3, completing the switching process of the A-way input power supply to the output power supply.
[0030] As Figure 1 and Figure 2 As shown in the two sides of the lower opening of the cover 1 are provided with a cover catch 1a, the bottom cover 2 of the two sides of the upper opening are provided with a bottom cover head 2a adapted to the cover catch 1a, in the cover 1 and the bottom cover 2 assembled together, through the cover catch 1a and the bottom cover head 2a of the cooperation of each other tightly.
[0031] The utility model discloses a small AC and DC dual-purpose dual power automatic switch adopts the relatively small shell structure, can be applicable to the automatic switching of two-way larger AC or DC power, adopts the circuit board form of high voltage and low voltage partition, can obtain better anti -interference effect, adopts wide voltage input power module control switching, can adapt to the multiple switching of AC and DC power, adopts two -step delay switching mode to avoid the ring conflict produced between dual power, adopts the economic and reasonable reduction whole machine power consumption measure, has reached the comprehensive purpose of energy -conserving and cost -reducing.
[0032] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have been described, and are not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. in the spirit and principles of the utility model, should be contained in the protection scope of the utility model.
Claims
1. A small-sized AC / DC dual power automatic transfer switch comprising a housing, and the housing comprises a cover (1) and a bottom cover (2), characterized in that: The cover (1) is provided with an upper layer circuit board (10), the top surface of the bottom cover (2) is provided with a bottom layer circuit board (9), the bottom layer circuit board (9) is fixedly connected with a first switching module (9a) and a second switching module (9b) for current switching, the two ends of the bottom layer circuit board (9) are provided with a power input terminal (3) and a power output terminal (4), the top surface of the bottom layer circuit board (9) is fixedly connected with front row pins (11) and rear row pins (12), the top ends of the front row pins (11) and the rear row pins (12) are welded and electrically connected with the bottom surface of the upper layer circuit board (10), the upper side surface of the power input terminal (3) is threadedly connected with an input fixing screw (3a), the rear side surface of the power input terminal (3) is provided with a power input interface (3b), the power input terminal (3) has two input terminals, INPUTA and INPUTB, the INPUTA includes two pins, A1 and A2, the INPUTA is connected with an A power supply, the INPUTB includes two pins, B1 and B2, the INPUTB is connected with a B power supply, the power output terminal (4) has two effective output terminals, OUTPUT, the OUTPUT includes two pins, O1 and O2, the upper side surface of the power output terminal (4) is an output fixing screw (4a), and the front side surface is a power output interface (4b).
2. A small-sized AC / DC dual-purpose dual-power automatic switch according to claim 1, characterized in that: The cover (1) is provided with an upper layer circuit board (10), the top surface of the bottom cover (2) is provided with a bottom layer circuit board (9), the bottom layer circuit board (9) is fixedly connected with a first switching module (9a) and a second switching module (9b) for current switching, the two ends of the bottom layer circuit board (9) are provided with a power input terminal (3) and a power output terminal (4), the top surface of the bottom layer circuit board (9) is fixedly connected with front row pins (11) and rear row pins (12), the top ends of the front row pins (11) and the rear row pins (12) are welded and electrically connected with the bottom surface of the upper layer circuit board (10), the upper side surface of the power input terminal (3) is threadedly connected with an input fixing screw (3a), the rear side surface of the power input terminal (3) is provided with a power input interface (3b), the power input terminal (3) has two input terminals, INPUTA and INPUTB, the INPUTA includes two pins, A1 and A2, the INPUTA is connected with an A power supply, the INPUTB includes two pins, B1 and B2, the INPUTB is connected with a B power supply, the power output terminal (4) has two effective output terminals, OUTPUT, the OUTPUT includes two pins, O1 and O2, the upper side surface of the power output terminal (4) is an output fixing screw (4a), and the front side surface is a power output interface (4b).
3. A small-sized AC / DC dual-purpose dual-power automatic switch according to claim 1, characterized in that: The bottom cover (2) is provided with an installation clamping hole (2b) in the middle bottom, and an installation clamping head (8) is arranged below the rear side of the bottom cover (2).
4. A small-sized AC / DC dual-purpose dual-power automatic switch according to claim 1, characterized in that: The upper layer circuit board (10) is fixedly connected with a power module (10d), the power module (10d) is electrically connected with a voltage regulating module (10e), the voltage regulating module (10e) is electrically connected with a first driving module (10f), the first driving module (10f) is connected with a control end pin C1 of the first switching module (9a), the voltage regulating module (10e) is electrically connected with a delay module (10g), the delay module (10g) is electrically connected with a second driving module (10h), the second driving module (10h) is connected with a control end pin C2 of the second switching module (9b), the INPUTA pin is electrically connected with an A input indicator lamp (10a), the INPUTB pin is electrically connected with a B input indicator lamp (10b), and the OUTPUT pin is electrically connected with a power output indicator lamp (10C).
5. A small-sized AC / DC dual-purpose dual-power automatic switch according to claim 1, characterized in that: The main lines of the A1 pin and the A2 pin in the input end INPUTA of the power input terminal (3) are connected with the J3-a contact and the J4-a contact of the second switch module (9b) respectively, the J3-o contact in the second switch module (9b) is electrically connected with the J1-a contact in the first switch module (9a), and the J4-o contact in the second switch module (9b) is electrically connected with the J2-a contact in the first switch module (9a); the main lines of the B1 pin and the B2 pin in the INPUTB pin of the power input terminal (3) are electrically connected with the J1-b contact and the J2-b contact of the first switch module (9a) respectively, the J1-o contact in the first switch module (9a) is electrically connected with the O1 pin in the OUTPUT pin of the power output terminal (4), and the J2-o contact in the first switch module (9a) is electrically connected with the O2 pin in the OUTPUT pin of the power output terminal (4).
6. A small-sized AC / DC dual-purpose dual-power automatic switch according to claim 1, characterized in that: The auxiliary lines of the A1 pin and the A2 pin in the INPUTA of the power input terminal (3) are electrically connected with the power module (10d) and the A-way input indicating lamp (10a) respectively, the B1 pin and the B2 pin in the INPUTB of the power input terminal (3) are electrically connected with the B-way input indicating lamp (10b), and the O1 pin and the O2 pin in the OUTPUTA pin of the power input terminal (3) are electrically connected with the power output indicating lamp (10c).
7. A small-sized AC / DC dual-purpose dual-power automatic switch according to claim 1, characterized in that: In the static state, the J1-o contact and the J1-b contact in the first switch module (9a) are connected, the J2-o contact and the J2-b contact are connected, the B1 pin in the INPUTB pin of the power input terminal (3) is connected with the O1 pin in the OUTPUT pin of the power output terminal (4), the B2 pin in the INPUTB pin is connected with the O2 pin in the OUTPUT pin of the power output terminal (4), and the INPUTA pin in the power input terminal (3) is not connected with the OUTPUT pin of the power output terminal (4).
8. A small-sized AC / DC dual-purpose dual-power automatic switch according to claim 1, characterized in that: After the first circuit switching action, the J1-o contact and the J1-a contact in the first switch module (9a) are connected, the J2-o contact and the J2-a contact are connected, after the second circuit switching action, the J3-o contact and the J3-a contact in the second switch module (9b) are connected, the J4-o contact and the J4-a contact are connected, the A1 pin in the INPUTA pin of the power input terminal (3) is connected with the O1 pin in the OUTPUT pin of the power output terminal (4), the A2 pin in the INPUTA pin is connected with the O2 pin in the OUTPUT pin of the power output terminal (4), and the INPUTB pin in the power input terminal (3) is not connected with the OUTPUT pin of the power output terminal (4).