Multi-split active switch signal control interface circuit, card insertion assembly, air conditioner control device and multi-split system
By adopting a combined circuit design of the first transistor and the second transistor and the interface module in a multi-connection air conditioning system, the problem of active control invalid due to the unchanged terminal sequence is solved, and the effective conduction of the terminal sequence is achieved, which has the advantages of simple structure and low cost.
Patent Information
- Application Number
- CN202422348504.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-25
AI Technical Summary
In existing multi-connection air conditioning systems, the order of remote terminals has no effect, but during active control, the negative terminal of the optocouple must be wired, resulting in wiring errors and ineffective control.
The combined circuit design of the first transistor and the second transistor and the interface module is adopted so that the optical coupling can be turned on regardless of the order of the terminals to realize active control.
It realizes that the optical coupler can be effectively turned on regardless of the order of the terminals, ensuring the effectiveness of active control, and the circuit structure is simple and cost-effective.
Smart Images
Figure CN223141909U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of air conditioning, and in particular relates to a multi-split active switch signal control interface circuit and a plug-in card assembly, an air conditioning control device, and a multi-split system. Background Art
[0002] Multi-split central air conditioners consist of one or more outdoor units connected to multiple indoor units and are usually used in large places such as shopping malls and factories.
[0003] Communication and interconnection are required between the indoor units of multi-split units, the indoor units and outdoor units, and the indoor units and controllers. For example, in a hotel room, a communication connection between the indoor unit of the air conditioner and the card inserter needs to be set up. When the room card is inserted into the card inserter, the indoor unit of the air conditioner will receive a power-on signal or power on standby. The remote switch signal is usually non-polar, such as Figure 1 As shown, Figure 1 The left part a is the upper part of the air conditioner indoor unit control panel. Figure 1 The right side b part is the customer wiring part. When the customer is wiring, just short-circuit passively at the far end. Figure 1 As shown, the wiring terminals 1 and 2 have no polarity. When the terminals 1 and 2 are short-circuited, the optocoupler PC817 is turned on. After the optocoupler is turned on, a signal can be output through the ON / OFF terminal.
[0004] Since the remote end does not distinguish polarity, the order of the terminals on the device has no effect. On some devices, the order of terminals 1 and 2 is reversed, such as Figure 2 When the control terminal is connected using active control, it is necessary to ensure that the control terminal is connected to the negative end of the optocoupler. If it is connected to the ground end, the control will be invalid. Figure 3A The figure shows the schematic diagram of the control terminal connected to the negative terminal of the optocoupler, which shows that the active control is effective; Figure 3B The figure shows a schematic diagram of the control terminal being connected to the ground terminal, and it can be seen that the active control is invalid. Utility Model Content
[0005] In view of this, the embodiment of the present application provides a multi-connection active switch signal control interface circuit and a plug-in card assembly, which can realize that the optical coupler can be turned on regardless of the order of the wiring terminals, so that the active control is effective.
[0006] The embodiment of the present application provides a multi-link active switch signal control interface circuit, including:
[0007] A first triode, a second triode and an interface module;
[0008] The base of the first transistor is connected to the signal end, the collector of the first transistor is connected to the first terminal of the interface module, and the emitter of the first transistor is grounded;
[0009] The base of the second triode is connected to the signal terminal, the collector of the second triode is connected to the second terminal of the interface module, and the emitter of the second triode is grounded.
[0010] In a possible implementation, the circuit further includes:
[0011] A first resistor, one end of the first resistor is connected to the signal terminal, and the other end of the first resistor is connected to the base of the first triode.
[0012] In a possible implementation, the circuit further includes:
[0013] A second resistor, one end of the second resistor is connected to the base of the first triode, and the other end of the second resistor is grounded.
[0014] In a possible implementation, the circuit further includes:
[0015] A third resistor, one end of the third resistor is connected to the signal terminal, and the other end of the third resistor is connected to the base of the second triode.
[0016] In a possible implementation, the circuit further includes:
[0017] A fourth resistor, one end of the fourth resistor is connected to the base of the second triode, and the other end of the fourth resistor is grounded.
[0018] In a possible implementation, the first triode and the second triode have the same model.
[0019] In a possible implementation, the first terminal of the interface module is connected to the power supply, and the second terminal of the interface module is grounded.
[0020] The embodiment of the present application further provides a plug-in card assembly, including the multi-line active switch signal control interface circuit in the above embodiment.
[0021] The embodiment of the present application further provides an air conditioner control device, including the plug-in card assembly in the above embodiment.
[0022] The embodiment of the present application further provides a multi-line system, including the air conditioner control device in the above embodiment.
[0023] The multi-connected air conditioner active switch signal control interface circuit according to the embodiment of the present application includes a first triode, a second triode, and an interface module; the base of the first triode is connected to a signal terminal, the collector of the first triode is connected to the first terminal of the interface module, and the emitter of the first triode is grounded; the base of the second triode is connected to the signal terminal, the collector of the second triode is connected to the second terminal of the interface module, and the emitter of the second triode is grounded. Compared with the prior art, in this solution, regardless of whether the first terminal and the second terminal of the interface module are connected to the negative terminal of the optocoupler or grounded, the optocoupler can be turned on through the multi-connected air conditioner active switch signal control interface circuit of the present application. Moreover, the multi-connected air conditioner active switch signal control interface circuit of the present application has the characteristics of simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:
[0025] FIG Figure 1 shows one of the circuit diagrams of an existing indoor unit control circuit of an air conditioner;
[0026] FIG Figure 2 shows another circuit diagram of an existing indoor unit control circuit of an air conditioner;
[0027] FIG Figure 3A shows one of the circuit diagrams of an existing remote active control;
[0028] FIG Figure 3B shows another circuit diagram of an existing remote active control;
[0029] FIG Figure 4 shows the circuit diagram of a multi-connected air conditioner active switch signal control interface circuit provided by the present application;
[0030] FIG Figure 5A shows one of the circuit diagrams of a remote active control provided by the present application;
[0031] FIG Figure 5B shows another circuit diagram of a remote active control provided by the present application;
[0032] FIG Figure 6 shows the structural schematic diagram of a plug-in card assembly provided by the present application.
[0033] Reference Signs:
[0034] Multi-connected air conditioner active switch signal control interface circuit 100;
[0035] The first triode Q1, the second triode Q2, the interface module CN17, the first terminal 1 and the second terminal 2;
[0036] The first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4.
[0037] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments
[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0039] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.
[0040] In addition, the descriptions such as "first" and "second" in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0041] In the present utility model, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0042] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.
[0043] Specifically, Figure 4 is a schematic structural diagram of a multi-connected unit active switch signal control interface circuit provided by an embodiment of the present application. As Figure 4 shown, the multi-connected unit active switch signal control interface circuit 100 includes: a first triode Q1, a second triode Q2, and an interface module CN17. The interface module CN17 includes a first terminal 1 and a second terminal 2. Specifically, the first terminal 1 of the interface module is connected to a power supply (such as +5V), and the second terminal 2 of the interface module is grounded.
[0044] Specifically, as Figure 4 shown, the base of the first triode Q1 is connected to a signal terminal, the collector of the first triode Q1 is connected to the first terminal 1 of the interface module, and the emitter of the first triode Q1 is grounded; the base of the second triode Q2 is connected to the signal terminal, the collector of the second triode Q2 is connected to the second terminal 2 of the interface module, and the emitter of the second triode Q2 is grounded.
[0045] It can be seen that in the embodiment of the present application, a control signal can be input through the signal terminal to control the first triode Q1 and the second triode Q2 to conduct simultaneously, so that the first terminal 1 and the second terminal 2 of the interface module are grounded simultaneously, and it can be realized that regardless of the order of the terminal 1 and the terminal 2 at the device end, the optocoupler at the device end can be conducted.
[0046] In some embodiments, as Figure 4 shown, the above circuit further includes: a first resistor R1, one end of the first resistor R1 is connected to the signal terminal, and the other end of the first resistor R1 is connected to the base of the first triode Q1.
[0047] In some embodiments, as Figure 4 shown, the above circuit further includes: a second resistor R2, one end of the second resistor R2 is connected to the base of the first triode Q1, and the other end of the second resistor R2 is grounded.
[0048] In some embodiments, as Figure 4 shown, the above circuit further includes: a third resistor R3, one end of the third resistor R3 is connected to the signal terminal, and the other end of the third resistor R3 is connected to the base of the second triode Q2.
[0049] In some embodiments, as Figure 4As shown, the above circuit further includes: a fourth resistor R4, one end of the fourth resistor R4 is connected to the base of the second triode Q2, and the other end of the fourth resistor R4 is grounded.
[0050] In some embodiments, the first triode Q1 and the second triode Q2 have the same model. The specific signals of Q1 and Q2 can be determined according to needs.
[0051] As Figure 5A and 5B shown, regardless of the connection order of terminals 1 and 2 at the device end, after being connected to the multi-connected unit active switch signal control interface circuit of the present application, when a control signal is input at the signal end to turn on the first triode Q1 and the second triode Q2, the optocoupler can be turned on, that is, active control can be effectively achieved.
[0052] The multi-connected unit active switch signal control interface circuit of the embodiment of the present application includes a first triode, a second triode, and an interface module; the base of the first triode is connected to the signal end, the collector of the first triode is connected to the first terminal of the interface module, and the emitter of the first triode is grounded; the base of the second triode is connected to the signal end, the collector of the second triode is connected to the second terminal of the interface module, and the emitter of the second triode is grounded. Compared with the prior art, in this solution, regardless of whether the first terminal and the second terminal of the interface module are connected to the negative terminal of the optocoupler or grounded, the optocoupler can be turned on through the multi-connected unit active switch signal control interface circuit of the present application. Moreover, the multi-connected unit active switch signal control interface circuit of the present application has the characteristics of simple structure and low cost.
[0053] Figure 6 is a schematic structural diagram of a plug-in card assembly provided by an embodiment of the present application. As Figure 6 shown, the plug-in card assembly includes the multi-connected unit active switch signal control interface circuit 100 in the above embodiment. As Figure 4 shown, the multi-connected unit active switch signal control interface circuit 100 includes: a first triode Q1, a second triode Q2, and an interface module CN17. The interface module CN17 includes a first terminal 1 and a second terminal 2. Specifically, the first terminal 1 of the interface module is connected to the power supply, and the second terminal 2 of the interface module is grounded.
[0054] Specifically, as Figure 4 shown, the base of the first triode Q1 is connected to the signal end, the collector of the first triode Q1 is connected to the first terminal 1 of the interface module, and the emitter of the first triode Q1 is grounded; the base of the second triode Q2 is connected to the signal end, the collector of the second triode Q2 is connected to the second terminal 2 of the interface module, and the emitter of the second triode Q2 is grounded.
[0055] The embodiment of the present application further provides an air conditioner control device, and the air conditioner control device includes the card insertion component in the above embodiment.
[0056] The embodiment of the present application further provides a multi-connected air conditioner system, and the multi-connected air conditioner system includes the air conditioner control device in the above embodiment. The multi-connected air conditioner system may further include a plurality of outdoor units and a plurality of indoor units.
[0057] It should be noted that:
[0058] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the non-direct contact between the first and second features but through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.
[0059] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.
[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0061] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.
Claims
1. A multi-connected unit active switch signal control interface circuit, characterized in that Comprising: A first triode, a second triode and an interface module; The base of the first triode is connected to a signal terminal, the collector of the first triode is connected to a first terminal of the interface module, and the emitter of the first triode is grounded; The base of the second triode is connected to the signal terminal, the collector of the second triode is connected to a second terminal of the interface module, and the emitter of the second triode is grounded.
2. The multi-connected unit active switch signal control interface circuit according to claim 1, wherein The circuit further comprises: A first resistor, one end of the first resistor is connected to the signal terminal, and the other end of the first resistor is connected to the base of the first triode.
3. The multi-connected unit active switch signal control interface circuit according to claim 2, wherein The circuit further comprises: A second resistor, one end of the second resistor is connected to the base of the first triode, and the other end of the second resistor is grounded.
4. The multi-connected unit active switch signal control interface circuit according to any one of claims 1 to 3, characterized in that The circuit further comprises: A third resistor, one end of the third resistor is connected to the signal terminal, and the other end of the third resistor is connected to the base of the second triode.
5. The multi-connected unit active switch signal control interface circuit according to claim 4, characterized in that The circuit further comprises: A fourth resistor, one end of the fourth resistor is connected to the base of the second triode, and the other end of the fourth resistor is grounded.
6. The multi-connected unit active switch signal control interface circuit according to claim 1, wherein The first triode and the second triode have the same model.
7. The multi-connected unit active switch signal control interface circuit according to claim 1, wherein The first terminal of the interface module is connected to a power supply, and the second terminal of the interface module is grounded.
8. An insertion card component, characterized in that, Comprising the multi-line active switch signal control interface circuit according to any one of claims 1-7.
9. An air conditioner control device, characterized in that, Comprising the card insertion component according to claim 8.
10. A multi-connected air conditioner system, characterized in that, Comprising the air conditioner control device according to claim 9.