Multifunctional relay and electrical control box
The multi-functional relay system addresses the limitations of single-pole relays by integrating switch modules and control coils to facilitate complex measurements, enhancing the capabilities of relays and electrical control boxes.
Patent Information
- Application Number
- CN202422219229.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-10
AI Technical Summary
The existing industrial-grade relay has a single function and cannot achieve complex detection functions.
A multifunctional relay is designed, including the first and second relays, and through the combination of different switching modules and control coils, the flexible connection between the load and the detection instrument is achieved, expanding the detection function.
It realizes detection of parameters such as detection voltage, current and resistance, which improves the safety and functional scalability of the circuit.
Smart Images
Figure CN223108785U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of electrical engineering, and particularly to a multifunctional relay and an electrical control box. Background Art
[0002] For the existing industrial-grade relay control input / output modules on the market, the smallest unit uses a single single-pole single-throw or single-pole double-throw relay, such as Figure 1 .
[0003] Figure 1 In [reference], OUT1 to OUT4 are single-pole double-throw relays, and OUT5 to OUT8 are single-pole single-throw relays.
[0004] A single single-pole relay can only achieve a single contact closure, with relatively simple functions and unable to achieve slightly more complex functions.
[0005] Therefore, how to expand the functions of the relay is a technical problem that needs to be solved. Utility Model Content
[0006] The purpose of this application is to provide a multifunctional relay and an electrical control box to expand the functions of the relay.
[0007] To achieve the above purpose, the embodiments of this application have taken the following technical solutions.
[0008] In a first aspect, the embodiments of this application provide a multifunctional relay, including a first relay and a second relay; the first relay includes a first switch module and a first control coil; the second relay includes a second switch module and a second control coil;
[0009] The first switch module is used to connect the load and the power supply;
[0010] In a first state, the first contact and the second contact of the first switch module are conducted, enabling the load and the power supply to form a loop;
[0011] The first contact of the second switch module is connected to the first contact of the first switch module, and the second contact of the second switch module is used to connect the first end of the detection instrument;
[0012] In a second state, the first contact and the second contact of the first switch module are disconnected, the first contact and the second contact of the second switch module are conducted, the second end of the detection instrument is connected to the second contact of the first switch module, and the detection instrument is connected to the loop formed by the load and the power supply.
[0013] Optionally, the second switch module is a double-pole single-throw switch; the double-pole single-throw switch includes a first switch and a second switch;
[0014] The first contact of the first switch is connected to the first contact of the first switch module;
[0015] The second contact of the first switch is used to connect to the first end of the detection instrument;
[0016] The first contact of the second switch is connected to the second contact of the first switch module;
[0017] The second contact of the second switch is used to connect to the second end of the detection instrument.
[0018] Optionally, the first switch module is a single-pole single-throw switch; the second switch module is a double-pole single-throw switch; the double-pole single-throw switch includes a first switch and a second switch;
[0019] The first contact of the first switch is connected to the first contact of the single-pole single-throw switch;
[0020] The second contact of the first switch is used to connect to one end of the detection instrument;
[0021] The first contact of the second switch is connected to the second contact of the single-pole single-throw switch;
[0022] The second contact of the second switch is used to connect to the other end of the detection instrument.
[0023] Optionally, the first switch module is a single-pole double-throw switch; the second switch module includes a third switch, a fourth switch, and a fifth switch;
[0024] The first contact of the third switch is connected to the first contact of the single-pole double-throw switch;
[0025] The first contact of the fourth switch is connected to the second contact of the single-pole double-throw switch;
[0026] The first contact of the fifth switch is connected to the third contact of the single-pole double-throw switch;
[0027] Two of the second contacts of the third switch, the second contacts of the fourth switch, and the second contacts of the fifth switch are connected to the detection instrument and form a loop.
[0028] Optionally, the first relay further includes a first diode, and the first control coil is connected in parallel with the first diode.
[0029] Optionally, the second relay further includes a second diode, and the second control coil is connected in parallel with the second diode.
[0030] Optionally, the detection instrument includes a multimeter.
[0031] Optionally, the first relay is a single-pole double-throw relay; the single-pole double-throw relay includes a single-pole double-throw switch and a first control coil;
[0032] The first pin of the single-pole double-throw relay is connected to the fixed contact of the single-pole double-throw switch, the second pin of the single-pole double-throw relay is connected to the first switched contact of the single-pole double-throw switch, and the third pin of the single-pole double-throw relay is connected to the second switched contact of the single-pole double-throw switch;
[0033] The first control coil is connected between the fourth pin and the fifth pin of the single-pole double-throw relay;
[0034] The fourth pin of the single-pole double-throw relay is used to connect to one pole of the control power supply, and the fifth pin of the single-pole double-throw relay is used to connect to the controller;
[0035] The second relay is a double-pole double-throw relay; the double-pole double-throw relay includes a double-pole double-throw switch and a second control coil;
[0036] The first pin of the double-pole double-throw relay is connected to the first contact of the double-pole double-throw switch, the second pin of the double-pole double-throw relay is connected to the second contact of the double-pole double-throw switch, the third pin of the double-pole double-throw relay is connected to the third contact of the double-pole double-throw switch, the fourth pin of the double-pole double-throw relay is connected to the fourth contact of the double-pole double-throw switch, the fifth pin of the double-pole double-throw relay is connected to the fifth contact of the double-pole double-throw switch, and the sixth pin of the double-pole double-throw relay is connected to the sixth contact of the double-pole double-throw switch; when the first contact is in conduction with the third contact, the second contact is in conduction with the fourth contact; when the first contact is in conduction with the fifth contact, the second contact is in conduction with the sixth contact;
[0037] The second control coil is connected between the seventh pin and the eighth pin of the double-pole double-throw relay;
[0038] The seventh pin of the double-pole double-throw relay is used to connect to one pole of the control power supply, and the eighth pin of the double-pole double-throw relay is used to connect to the controller;
[0039] The fifth pin of the double-pole double-throw relay is connected to the first pin of the single-pole double-throw relay; the sixth pin of the double-pole double-throw relay is connected to the second pin of the single-pole double-throw relay;
[0040] The first pin of the double-pole double-throw relay is connected to the first end of the detection instrument, and the second pin of the double-pole double-throw relay is connected to the second end of the detection instrument.
[0041] In a second aspect, an embodiment of the present application provides an electrical control box, and the electrical control box includes the multifunctional relay of the first aspect.
[0042] Optionally, the electrical control box further includes the detection instrument, and a second contact of the second switch module is used to connect to a first end of the detection instrument; when a first contact and a second contact of the first switch module are disconnected, and a first contact and a second contact of the second switch module are conducting, a second end of the detection instrument is connected to the second contact of the first switch module, and the detection instrument is connected into a loop formed by the load and the power supply.
[0043] Compared with the prior art, the present application has the following beneficial effects:
[0044] The multifunctional relay provided by the embodiment of the present application can conveniently connect detection instruments such as a multimeter, so that the multimeter detection instrument is connected into the loop, thereby detecting parameters such as voltage, current, and resistance, expanding the functions of the original relay and electrical control box. BRIEF DESCRIPTION OF THE DRAWINGS
[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0046] Figure 1 Schematic diagram of a single-pole single-throw or single-pole double-throw relay in the prior art as the smallest unit of an industrial-grade relay control input / output module;
[0047] Figure 2 Schematic diagram of a multifunctional relay provided by an embodiment of the present application;
[0048] Figure 3 Schematic diagram of a multifunctional relay provided by an embodiment of the present application connecting a detection instrument through a double-pole single-throw switch;
[0049] Figure 4 Schematic diagram of a multifunctional relay provided by an embodiment of the present application including a single-pole double-throw switch and three single-throw switches;
[0050] Figure 5 Schematic diagram of a multifunctional relay composed of a single-pole double-throw relay and a double-pole double-throw relay provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0051] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. The described embodiments are some, but not all, of the embodiments of this application. Components of the embodiments of this application described herein are usually arranged and designed in various different configurations.
[0052] Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of this application that is claimed, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this application without creative efforts fall within the scope of protection of this application. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.
[0053] In the description of this application, it should be noted that relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. The term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium.
[0054] Reference may be made to Figure 2 , an embodiment of this application provides a multifunctional relay, including a first relay 10 and a second relay 20.
[0055] The first relay 10 includes a first switch module 101 and a first control coil 102. The first control coil 102 is used to control the conduction state of the first switch module 101.
[0056] The second relay 20 includes a second switch module 201 and a second control coil 202. The second control coil 202 is used to control the conduction state of the second switch module 201.
[0057] The first switch module 101 is used to connect a load and a power source to connect the load to the circuit.
[0058] For the convenience of describing Figure 2 the connection relationships in, the left end of the first switch module 101 is taken as the first contact, and the right end is taken as the second contact; the lower end of the second switch module 201 is taken as the first contact, and the upper end is taken as the second contact; the left end of the detection instrument is the first end, and the right end is the second end.
[0059] The first contact of the second switch module 201 is connected to the first contact of the first switch module 101, and the second contact of the second switch module 201 is used to connect to the first end of the detection instrument; the second end of the detection instrument can be directly or indirectly connected to the second contact of the first switch module 101.
[0060] The multifunctional relay has at least two states:
[0061] In the first state, the first contact and the second contact of the first switch module 101 are conducted, forming a loop between the load and the power supply;
[0062] In the second state, the first contact and the second contact of the first switch module 101 are disconnected, the first contact and the second contact of the second switch module 201 are conducted, the second end of the detection instrument is connected to the second contact of the first switch module, and the detection instrument is connected to the loop formed by the load and the power supply, so that parameters such as voltage, current, and resistance can be detected, expanding the functions of the original relay. The detection instrument can be an instrument such as a multimeter or an ammeter.
[0063] Such as Figure 2 , the first switch module can be a single-pole single-throw switch, and the second switch module can be a single-pole single-throw switch.
[0064] Such as Figure 3 , the second switch module can be a single-pole single-throw switch, the second switch module can be a double-pole single-throw switch, and the double-pole single-throw switch includes a first switch 203 and a second switch 204; the connection relationship is as follows:
[0065] The first contact of the first switch 203 is connected to the first contact of the first switch module 101;
[0066] The second contact of the first switch 203 is used to connect to the first end of the detection instrument;
[0067] The first contact of the second switch 204 is connected to the second contact of the first switch module 101;
[0068] The second contact of the second switch 204 is used to connect to the second end of the detection instrument.
[0069] Similarly, in this embodiment, the multifunctional relay has the following different states:
[0070] In the first state, the first contact and the second contact of the first switch module 101 are conducted, forming a loop between the load and the power supply;
[0071] In the second state, the first and second contacts of the first switch module 101 are disconnected, and the first switch 203 and the second switch 204 of the second switch module are turned on, forming a loop among the load, the power supply, and the detection instrument, so that the detection instrument can detect parameters such as voltage, current, and resistance, expanding the functions of the original relay. The detection instrument can be an instrument such as a multimeter or an ammeter.
[0072] The double-pole single-throw switch can completely isolate both ends of the detection instrument from the loop, preventing the detection instrument from being charged and improving the safety of the circuit.
[0073] For example Figure 4 , the first switch module can be a single-pole double-throw switch 103; the second switch module can be a triple-pole single-throw switch, and the second switch module includes a third switch 205, a fourth switch 206, and a fifth switch 207;
[0074] The first contact of the third switch 205 is connected to the first contact of the single-pole double-throw switch 103;
[0075] The first contact of the fourth switch 206 is connected to the second contact of the single-pole double-throw switch 103;
[0076] The first contact of the fifth switch 207 is connected to the third contact of the single-pole double-throw switch 103;
[0077] Two of the second contacts of the third switch 205, the second contact of the fourth switch 206, and the second contact of the fifth switch 207 are connected to the detection instrument to form a loop. The second contact of the single-pole double-throw switch 103 is used to connect to the power supply. The first and third contacts of the single-pole double-throw switch 103 can be used to connect different loads, or one of the first and third contacts is left floating.
[0078] In this embodiment, the multifunctional relay has the following different states:
[0079] In the first state, the second switch module is disconnected, and the detection instrument does not detect;
[0080] In the second state, the first and second contacts of the single-pole double-throw switch 103 are disconnected, the second switch module is closed, and the detection instrument forms a loop with the load connected to the first contact of the single-pole double-throw switch 103 through the third switch 205 and the fourth switch 206;
[0081] In the third state, the third and second contacts of the single-pole double-throw switch 103 are disconnected, the second switch module is closed, and the detection instrument forms a loop with the load connected to the third contact of the single-pole double-throw switch 103 through the fourth switch 206 and the fifth switch 207.
[0082] The triple-pole single-throw switch can ensure that the detection instrument can be isolated from the load loop when the detection instrument does not need to work.
[0083] As Figure 5 , the first relay 10 can be a single-pole double-throw relay, and the second relay 20 can be a double-pole double-throw relay. If there is no corresponding load to be connected, the redundant pins can be left floating.
[0084] The single-pole double-throw relay includes a single-pole double-throw switch and a first control coil. The contacts of the single-pole double-throw switch are named as a fixed contact, a first switched contact, and a second switched contact. The fixed contact is conducted with the first switched contact, or the fixed contact is conducted with the second switched contact. The pins of the single-pole double-throw relay have the following connection relationships:
[0085] The first pin of the single-pole double-throw relay is connected to the fixed contact of the single-pole double-throw switch;
[0086] The second pin of the single-pole double-throw relay is connected to the first switched contact of the single-pole double-throw switch;
[0087] The third pin of the single-pole double-throw relay is connected to the second switched contact of the single-pole double-throw switch;
[0088] A first control coil is connected between the fourth pin and the fifth pin of the single-pole double-throw relay;
[0089] The fourth pin of the single-pole double-throw relay is used to connect one pole of the power supply (such as +12V), and the fifth pin of the single-pole double-throw relay is used to connect the controller.
[0090] The double-pole double-throw relay includes a double-pole double-throw switch and a second control coil; the contacts of the double-pole double-throw switch are named as a first contact, a second contact, a third contact, a fourth contact, a fifth contact, and a sixth contact; when the first contact is conducted with the third contact, the second contact is conducted with the fourth contact at the same time, and when the first contact is conducted with the fifth contact, the second contact is conducted with the sixth contact at the same time.
[0091] The pins of the double-pole double-throw relay have the following connection relationships:
[0092] The first pin of the double-pole double-throw relay is connected to the first contact of the double-pole double-throw switch;
[0093] The second pin of the double-pole double-throw relay is connected to the second contact of the double-pole double-throw switch;
[0094] The third pin of the double-pole double-throw relay is connected to the third contact of the double-pole double-throw switch;
[0095] The fourth pin of the double-pole double-throw relay is connected to the fourth contact of the double-pole double-throw switch;
[0096] The fifth pin of the double-pole double-throw relay is connected to the fifth contact of the double-pole double-throw switch;
[0097] The sixth pin of the double-pole double-throw relay is connected to the sixth contact of the double-pole double-throw switch;
[0098] A second control coil is connected between the seventh pin and the eighth pin of the double-pole double-throw relay;
[0099] The seventh pin of the double-pole double-throw relay is used to connect to one pole of the power supply (such as +12V), and the eighth pin of the double-pole double-throw relay is used to connect to the controller.
[0100] In addition, between the single-pole double-throw relay and the double-pole double-throw relay, there are also the following connection relationships:
[0101] The fifth pin of the double-pole double-throw relay is connected to the first pin of the single-pole double-throw relay;
[0102] The sixth pin of the double-pole double-throw relay is connected to the second pin of the single-pole double-throw relay;
[0103] The first pin of the double-pole double-throw relay is connected to the first end of the detection instrument;
[0104] The second pin of the double-pole double-throw relay is connected to the second end of the detection instrument.
[0105] The first pin (B1 BUS) and the second pin (B1 BUS2) of the double-pole double-throw relay are connected to a multimeter. When the first pin of the double-pole double-throw relay is conducted with the fifth contact and the second contact is conducted with the sixth contact, voltage measurement, current measurement, or resistance measurement can be realized between the first pin (TP B1A1) and the second pin (TP B1 B1) of the single-pole double-throw relay.
[0106] Such as Figure 5 , the first relay may further include a first diode, and the first control coil is connected in parallel with the first diode. The second relay may further include a second diode, and the second control coil is connected in parallel with the second diode. The diode can prevent the reverse flow of the current in the coil.
[0107] Based on the above embodiments, the embodiments of the present application further provide an electrical control box. The above-mentioned multifunctional relay can be used as the smallest unit of the electrical control box, and the electrical control box includes one or more of the above-mentioned multifunctional relays. The electrical control box may further include the above-mentioned detection instrument.
[0108] Generally speaking, the present application proposes a multifunctional relay and an electrical control box. The multifunctional relay includes a first relay and a second relay. In the first state, the first contact and the second contact of the first relay are conducted, so that the load and the power supply form a loop; in the second state, the first contact and the second contact of the first relay are disconnected, and the first contact and the second contact of the second relay are conducted. The first contact of the second relay is connected to the first contact of the first switch module, the second contact of the second relay is connected to the first end of the detection instrument, the second end of the detection instrument is connected to the second contact of the first relay, and the detection instrument is connected to the loop formed by the load and the power supply. The multifunctional relay can conveniently connect detection instruments such as a multimeter, so that the multimeter detection instrument is connected to the loop, thereby detecting parameters such as voltage, current, and resistance, and expanding the functions of the original relay and electrical control box.
[0109] The device and system embodiments described above are merely illustrative, and some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative work.
[0110] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A multifunctional relay, characterized in that, It includes a first relay and a second relay; the first relay includes a first switch module and a first control coil; the second relay includes a second switch module and a second control coil; The first switch module is used to connect the load and the power supply; In the first state, the first contact of the first switch module and the second contact of the first switch module are conducted, so that the load and the power supply form a loop; The first contact of the second switch module is connected to the first contact of the first switch module, and the second contact of the second switch module is used to connect the first end of the detection instrument; In the second state, the first contact of the first switch module and the second contact of the first switch module are disconnected, the first contact of the second switch module and the second contact of the second switch module are conducted, the second end of the detection instrument is connected to the second contact of the first switch module, and the detection instrument is connected to the loop formed by the load and the power supply.
2. The multifunctional relay according to claim 1, characterized in that, The second switch module is a double-pole single-throw switch; the double-pole single-throw switch includes a first switch and a second switch; The first contact of the first switch is connected to the first contact of the first switch module; The second contact of the first switch is used to connect the first end of the detection instrument; The first contact of the second switch is connected to the second contact of the first switch module; The second contact of the second switch is used to connect the second end of the detection instrument.
3. The multifunctional relay according to claim 1, characterized in that The first switch module is a single-pole single-throw switch; the second switch module is a double-pole single-throw switch; the double-pole single-throw switch includes a first switch and a second switch; The first contact of the first switch is connected to the first contact of the single-pole single-throw switch; The second contact of the first switch is used to connect one end of the detection instrument; The first contact of the second switch is connected to the second contact of the single-pole single-throw switch; The second contact of the second switch is used to connect the other end of the detection instrument.
4. The multifunctional relay according to claim 1, characterized in that The first switch module is a single-pole double-throw switch; the second switch module includes a third switch, a fourth switch and a fifth switch; The first contact of the third switch is connected to the first contact of the single-pole double-throw switch; The first contact of the fourth switch is connected to the second contact of the single-pole double-throw switch; The first contact of the fifth switch is connected to the third contact of the single-pole double-throw switch; Two of the second contacts of the third switch, the second contacts of the fourth switch and the second contacts of the fifth switch are connected to the detection instrument and form a loop.
5. The multifunctional relay according to claim 1, characterized in that, The first relay further includes a first diode, and the first control coil is connected in parallel with the first diode.
6. The multifunctional relay according to claim 1, wherein The second relay further includes a second diode, and the second control coil is connected in parallel with the second diode.
7. The multifunctional relay according to claim 1, characterized in that, The detection instrument includes a multimeter.
8. The multifunctional relay according to claim 1, characterized in that, The first relay is a single-pole double-throw relay; the single-pole double-throw relay includes a single-pole double-throw switch and a first control coil; The first pin of the single-pole double-throw relay is connected to the fixed contact of the single-pole double-throw switch, the second pin of the single-pole double-throw relay is connected to the first switched contact of the single-pole double-throw switch, and the third pin of the single-pole double-throw relay is connected to the second switched contact of the single-pole double-throw switch; The first control coil is connected between the fourth pin and the fifth pin of the single-pole double-throw relay; The fourth pin of the single-pole double-throw relay is used to connect to one pole of the control power supply, and the fifth pin of the single-pole double-throw relay is used to connect to the controller; The second relay is a double-pole double-throw relay; the double-pole double-throw relay includes a double-pole double-throw switch and a second control coil; The first pin of the double-pole double-throw relay is connected to the first contact of the double-pole double-throw switch, the second pin of the double-pole double-throw relay is connected to the second contact of the double-pole double-throw switch, the third pin of the double-pole double-throw relay is connected to the third contact of the double-pole double-throw switch, the fourth pin of the double-pole double-throw relay is connected to the fourth contact of the double-pole double-throw switch, the fifth pin of the double-pole double-throw relay is connected to the fifth contact of the double-pole double-throw switch, and the sixth pin of the double-pole double-throw relay is connected to the sixth contact of the double-pole double-throw switch; when the first contact and the third contact are conducting, the second contact and the fourth contact are conducting; when the first contact and the fifth contact are conducting, the second contact and the sixth contact are conducting; The second control coil is connected between the seventh pin and the eighth pin of the double-pole double-throw relay; The seventh pin of the double-pole double-throw relay is used to connect to one pole of the control power supply, and the eighth pin of the double-pole double-throw relay is used to connect to the controller; The fifth pin of the double-pole double-throw relay is connected to the first pin of the single-pole double-throw relay; the sixth pin of the double-pole double-throw relay is connected to the second pin of the single-pole double-throw relay; The first pin of the double-pole double-throw relay is connected to the first end of the detection instrument, and the second pin of the double-pole double-throw relay is connected to the second end of the detection instrument.
9. An electrical control box, characterized in that, The electrical control box includes the multifunctional relay according to any one of claims 1 to 8.
10. The electrical control box according to claim 9, characterized in that, The electrical control box further includes the detection instrument. The second contact of the second switch module is used to connect to the first end of the detection instrument; when the first contact and the second contact of the first switch module are disconnected, and the first contact and the second contact of the second switch module are conducting, the second end of the detection instrument is connected to the second contact of the first switch module, and the detection instrument is connected to the loop formed by the load and the power supply.