Wired controller and air conditioner

By fixing injection-molded protective isolation components to the circuit board, the problems of long circuit board protection process and inconvenient maintenance are solved, achieving the effect of simplifying the protection process and facilitating maintenance.

WO2026066287A1PCT designated stage Publication Date: 2026-04-02QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +2
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-06-18
Publication Date
2026-04-02

AI Technical Summary

Technical Problem

In the existing technology, the protection process of circuit boards takes a long time and is inconvenient to maintain. In addition, the thickness of the sprayed insulating varnish and UV glue makes maintenance difficult. Electronic components that cannot be sprayed require additional insulating pads, which are prone to falling off and failing.

Method used

Protective isolation components are fixed to the circuit board through injection molding to achieve insulation, dustproof and waterproof protection, simplify the protection process, and allow for quick disassembly and assembly during maintenance.

Benefits of technology

It shortens the protection process time, improves the convenience of maintenance, reduces the difficulty and cost of maintenance, and provides long-lasting and reliable protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

Provided in the present application are a wired controller and an air conditioner. The wired controller comprises: a first housing and a second housing, wherein a mounting space is formed between the first housing and the second housing, and the first housing has a mounting portion for installation to a required position; a circuit board disposed in the mounting space; and a protective isolator, wherein the protective isolator is an injection-molded part fixed on the circuit board, and the protective isolator is arranged at least between the circuit board and the first housing. Compared with the protective method in the prior art of spray-coating an insulating paint and UV glue and pasting an insulating gasket, the present application has a relatively short duration of protecting procedures, and can complete protection only by fixing the protective isolator on the circuit board. Moreover, during maintenance, it is only necessary to remove the protective isolator, and after the circuit board is maintained, the protective isolator can then be fixed onto the circuit board, so that the maintenance is relatively convenient.
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Description

A drive-by-wire controller and air conditioner

[0001] The present application claims priority to the Chinese patent application No. 2024223467953, filed on September 25, 2024, and entitled "A drive-by-wire controller and air conditioner", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application belongs to the technical field of air conditioners, and particularly relates to a drive-by-wire controller and air conditioner. BACKGROUND

[0003] In the field of air conditioner multi-split units, an indoor unit usually comes with a drive-by-wire controller to replace the traditional remote controller. The drive-by-wire controller generally includes a shell composed of a rear shell and a front shell, and a circuit board arranged in the shell. The circuit board needs to be protected from insulation, dust, water, etc. In the prior art, the protection is usually achieved by spraying insulating paint and UV (Ultraviolet) glue on the circuit board. In order to meet the protection requirements, the insulating paint and UV glue need to be sprayed multiple times to achieve the corresponding thickness. During the spraying process, the second spraying can only be performed after the insulating paint of the previous spraying is dry enough to avoid encapsulating water vapor and affecting the product performance, resulting in a relatively long protection process time.

[0004] When the circuit board is repaired, the UV glue and the insulating paint need to be removed first. The relatively large thickness of the UV glue and the insulating paint will cause difficulty in repairing the circuit board later, and the relatively large thickness of the UV glue and the insulating paint will also increase the protection cost. Some electronic components on the circuit board cannot be sprayed with UV glue and insulating paint, such as a code dial and a buzzer. The insulating paint needs to avoid the code dial to avoid affecting the code dial effect, and also needs to avoid the buzzer to avoid affecting the buzzer sound. Since some electronic components still cannot be protected, insulating gaskets need to be added for insulation compensation. The insulating gaskets are generally adhered to the circuit board by adhesive, and the adhesive fixing method is easy to fall off and cause protection failure.

[0005] Therefore, how to reduce the protection process time and improve the convenience of repair is a problem to be solved by those skilled in the art. SUMMARY

[0006] In view of the above, the purpose of the present application is to provide a drive-by-wire controller to reduce the protection process time and improve the convenience of repair.

[0007] Another purpose of the present application is to provide an air conditioner with the above drive-by-wire controller.

[0008] In order to achieve the above purpose, the present application provides the following technical solutions:

[0009] A drive-by-wire controller, comprising:

[0010] a first housing and a second housing, a mounting space being formed between the first housing and the second housing, the first housing having a mounting portion for mounting to a mounting position;

[0011] a circuit board disposed in the mounting space;

[0012] a protective isolation member, the protective isolation member being an injection molded member fixed to the circuit board, and the protective isolation member being arranged at least between the circuit board and the first housing.

[0013] Optionally, in the above-mentioned wire controller, a projection of the circuit board on the protective isolation member is located within an area enclosed by an external contour of the protective isolation member.

[0014] Optionally, in the above-mentioned wire controller, the protective isolation member is fixed to the circuit board by a fastener or a buckle.

[0015] Optionally, in the above-mentioned wire controller, the protective isolation member is fixed to the circuit board by a fastener, the circuit board is provided with a fastener screw hole matched with a threaded portion of the fastener, and the protective isolation member is provided with a fastener light hole through which the threaded portion of the fastener passes.

[0016] Optionally, in the above-mentioned wire controller, the protective isolation member is provided with a sink, the fastener light hole is provided on a bottom wall of the sink, and a nut portion of the fastener is sunk into the sink.

[0017] Optionally, in the above-mentioned wire controller, the protective isolation member is provided with a wire terminal avoiding hole penetrating through a wall thickness, and the wire terminal avoiding hole is located at a position corresponding to a wire terminal of the circuit board.

[0018] Optionally, in the above-mentioned wire controller, an edge of the wire terminal avoiding hole is provided with a reinforcing rib; and / or,

[0019] the wire terminal avoiding hole is divided into a first wire terminal avoiding hole and a second wire terminal avoiding hole by a partition, the first wire terminal avoiding hole corresponds to a first wire terminal of the circuit board, and the second wire terminal avoiding hole corresponds to a second wire terminal of the circuit board.

[0020] Optionally, in the above-mentioned wire controller, the protective isolation member is provided with an electronic element avoiding groove, and the electronic element avoiding groove corresponds to an electronic element on a side surface of the circuit board facing the protective isolation member.

[0021] Optionally, in the above-mentioned wire controller, the protective isolation member is provided with a mounting portion avoiding groove, and the mounting portion avoiding groove corresponds to the mounting portion.

[0022] Optionally, the line controller further comprises:

[0023] a display;

[0024] a mounting bracket, the display is fixed on the mounting bracket, and the mounting bracket is fixed on a side of the circuit board opposite to the first shell;

[0025] a panel arranged on the second shell, the panel has a control area and a display area corresponding to the display.

[0026] The line controller provided in the application increases a protective isolation piece between the first shell and the circuit board, the protective isolation piece is fixed on the circuit board, so that the circuit board and the first shell are separated by the protective isolation piece, meanwhile, the electronic elements on the circuit board are insulated and separated by the insulation of the protective isolation piece, dust, water and the like are prevented from entering the circuit board through the first shell to affect the performance of the circuit board. Compared with the protection mode of spraying insulating paint and pasting insulating pads in the prior art, the protection process is shorter, the protection can be completed only by fixing the protective isolation piece on the circuit board, and when maintenance is performed, the protective isolation piece only needs to be removed, and after the circuit board is maintained, the protective isolation piece is fixed on the circuit board again, so that the maintenance is more convenient.

[0027] An air conditioner comprises the line controller according to any one of the above.

[0028] The air conditioner provided in the application has all the technical effects of the line controller, and details are not described herein. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0030] FIG. 1 is an exploded view of the line controller provided in the embodiments of the application;

[0031] FIG. 2 is a structural schematic view of the protective isolation piece provided in the embodiments of the application;

[0032] FIG. 3 is a structural schematic view of the first shell provided in the embodiments of the application;

[0033] FIG. 4 is a structural schematic view of the line controller provided in the embodiments of the application when the line controller is installed;

[0034] FIG. 5 is a structural schematic view of the line controller provided in the embodiments of the application when the control line is installed;

[0035] Fig. 6 is a structural schematic diagram of the power cord when installed according to an embodiment of the present application;

[0036] Fig. 7 is a structural schematic diagram of the control cord and the first terminal when connected according to an embodiment of the present application;

[0037] Fig. 8 is a structural schematic diagram of the power cord and the second terminal when connected according to an embodiment of the present application.

[0038] The meanings of the various reference numerals in the drawings are as follows: 100 - first housing; 101 - first housing wiring hole; 102 - housing escape opening; 103 - first housing escape groove; 104 - mounting portion; 200 - protective isolation member; 201 - first terminal escape hole; 202 - second terminal escape hole; 203 - electronic component escape groove; 204 - mounting portion escape groove; 205 - isolation member escape opening; 206 - fastener light hole; 207 - partition; 300 - circuit board; 310 - control cord; 320 - power cord; 330 - first terminal; 340 - second terminal; 400 - mounting bracket; 500 - display; 600 - back light member; 700 - second housing; 800 - panel; 900 - rubber plug. DETAILED DESCRIPTION

[0039] The core of the present application is to provide a wire controller to reduce the length of the protection process and improve the convenience of maintenance.

[0040] Another core of the present application is to provide an air conditioner with the above wire controller.

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0042] The circuit board of the wire controller needs to be protected by insulation, dust prevention, and water prevention. In the prior art, the main protection means is to spray insulating paint and UV glue, and the insulating gasket is additionally pasted to protect the positions that cannot be sprayed with insulating paint. However, the process of spraying insulating paint is relatively complicated, and needs to be sprayed repeatedly for multiple times. Moreover, the paint layer of the previous spraying needs to be dried before the next spraying, which leads to a long protection process.

[0043] Based on this, the application discloses a kind of line controller, as shown in Figure 1, the line controller includes first shell 100, second shell 700, circuit board 300 and protective isolation piece 200.Therein, installation space is formed between first shell 100 and second shell 700, first shell 100 has installation part 104 (as shown in Figure 3) for installation to the installation position.The installation part 104 can be installation groove for installing locking screw, installation hole is opened in installation groove for locking screw to pass through, so that first shell 100 can pass through the installation hole on installation part 104 by locking screw, realize the fixation on terminal box or wall.

[0044] In the embodiment, the first shell 100 is the rear shell of the line controller, and the second shell 700 is the front shell of the line controller.The circuit board 300 is arranged in the installation space, and the fixation of the circuit board 300 is realized by the first shell 100 and the second shell 700.

[0045] The protective isolation piece 200 is an injection molded piece fixed on the circuit board 300.As the protective isolation piece 200 is an injection molded piece, it has insulation property, and can realize insulation isolation and protection effects such as dustproof and waterproof.The protective isolation piece 200 is arranged at least between the circuit board 300 and the first shell 100.In the embodiment, the protective isolation piece 200 can be arranged only on the side of the circuit board 300 facing the first shell 100, or can be arranged on both sides of the circuit board 300.The arrangement position of the protective isolation piece 200 can be selected according to the isolation and protection requirements.

[0046] The line controller provided by the application increases the protective isolation piece 200 between the first shell 100 and the circuit board 300, the protective isolation piece 200 is fixed on the circuit board 300, so that the circuit board 300 and the first shell 100 are separated by the protective isolation piece 200, and the electronic components on the circuit board 300 are insulated and isolated by the insulation property of the protective isolation piece 200, so as to prevent dust, water and the like from entering the circuit board 300 through the first shell 100 and affecting the performance of the circuit board 300.Compared with the protection mode of spraying insulating paint and pasting insulating gasket in the prior art, the protection process is shorter, and the protection can be completed only by fixing the protective isolation piece 200 on the circuit board 300, and when repairing, the protective isolation piece 200 only needs to be removed, and after repairing the circuit board 300, the protective isolation piece 200 is fixed on the circuit board 300 again, so that the repair is more convenient.

[0047] In an embodiment of the present application, the projection of the circuit board 300 on the protective isolation piece 200 is located within the area enclosed by the outer contour of the protective isolation piece 200. That is, in this embodiment, the area enclosed by the outer contour of the protective isolation piece 200 can be designed to be equal to the area of the circuit board 300, or the area enclosed by the outer contour of the protective isolation piece 200 can be designed to be slightly larger than the area of the circuit board 300, so that the protective isolation piece 200 can cover to the edge of the circuit board 300, achieving full coverage of the circuit board 300. Those skilled in the art can understand that, since the circuit board 300 usually does not have electronic elements, the area enclosed by the outer contour of the protective isolation piece 200 can also be designed to be slightly smaller than the area of the circuit board 300, as long as it can cover the electronic elements that need to be protected and isolated.

[0048] The protective isolation piece 200 can be fixed on the circuit board 300 by fasteners or buckles. If the protective isolation piece 200 is fixed on the circuit board 300 by buckles, elastic buckles need to be provided on both side edges of the protective isolation piece 200. The elastic buckles can have a certain amount of deformation under external force, so that the elastic buckles can be clamped on the edge of the circuit board 300.

[0049] If the protective isolation piece 200 is fixed on the circuit board 300 by fasteners, fastener screw holes are provided on the circuit board 300 to cooperate with the threaded part of the fastener. As shown in FIG. 2, fastener light holes 206 are provided on the protective isolation piece 200 for the threaded part of the fastener to pass through. When installing the protective isolation piece 200, first, the protective isolation piece 200 is attached to the side of the circuit board 300 facing the first shell 100, and the fastener light holes 206 on the protective isolation piece 200 are aligned with the fastener screw holes on the circuit board 300. Then, one end of the threaded part of the fastener is passed through the fastener light hole 206 and screwed into the fastener screw hole, so that the protective isolation piece 200 is tightly attached to the circuit board 300, completing the isolation and protection of the circuit board 300.

[0050] In order to avoid the problem that the circuit board 300 is bent and deformed due to the nut of the fastener abutting against the first shell 100, in this embodiment, a sink is provided on the protective isolation piece 200, and the fastener light hole 206 is provided on the bottom wall of the sink, and the nut part of the fastener is sunk into the sink, so that the problem of the circuit board 300 being bent and deformed due to the nut part protruding can be avoided.

[0051] In order to facilitate wiring, the protective isolation piece 200 is provided with wiring terminal avoiding holes penetrating through the wall thickness, and the wiring terminal avoiding holes are located at positions corresponding to the wiring terminals of the circuit board 300. Since wiring needs to be performed by threading from the back side of the first shell 100. As shown in FIG. 3, in order to facilitate threading, the first shell 100 also needs to be provided with a first shell wiring hole 101.

[0052] As shown in FIGS. 5-8, one skilled in the art can understand that the wire controller needs to connect the control line 310 and the power line 320. Accordingly, the circuit board 300 has the first terminal 330 and the second terminal 340 connected with the control line 310 and the power line 320.

[0053] When wiring, first, the protective isolation piece 200 is fixed on the circuit board 300, and the first terminal 330 and the second terminal 340 can be exposed by the terminal avoiding hole. Then the control line 310 is inserted through the first shell wiring hole 101 and connected with the first terminal 330, and the power line 320 is inserted through the first shell wiring hole 101 and pressed on the second terminal 340.

[0054] Since the protective isolation piece 200 only needs to have the protective isolation function, its thickness does not need to be designed to be thick, and the setting of the terminal avoiding hole will affect the strength of the protective isolation piece 200. In order to avoid the influence on the strength of the protective isolation piece 200 caused by the size of the terminal avoiding hole being too large, in the embodiment, the terminal avoiding hole is divided into the first terminal avoiding hole 201 and the second terminal avoiding hole 202 by the partition plate 207, the first terminal avoiding hole 201 corresponds to the first terminal 330 of the circuit board 300, and the second terminal avoiding hole 202 corresponds to the second terminal 340 of the circuit board 300.

[0055] That is, in the embodiment, the part between the first terminal 330 and the second terminal 340 on the circuit board 300 does not need to be designed to have a hollow structure because it does not have wiring requirements, and this part can be connected by the partition plate 207 to reduce the area of the terminal avoiding hole and improve the strength of the protective isolation piece 200. Further, the edge of the terminal avoiding hole is provided with a reinforcing rib, that is, the thickness of the edge of the terminal avoiding hole is designed to be thicker than other positions, which can also weaken the strength reduction caused by the opening.

[0056] As shown in FIG. 2, in order to prevent the force acting on the electronic elements on the circuit board 300 after the protective isolation piece 200 is installed from being too large, causing the electronic elements to be crushed. In the embodiment, the protective isolation piece 200 is provided with an electronic element avoiding groove 203, which corresponds to the electronic elements on the side surface of the circuit board 300 facing the protective isolation piece 200. The electronic element avoiding groove 203 protrudes towards the first shell 100 to accommodate the electronic elements; so as to ensure that the protective isolation piece 200 can be attached to the substrate of the circuit board 300, and also avoid crushing the electronic elements on the substrate.

[0057] It should be noted that the first shell 100 and the electronic component avoiding groove 203 correspond to the position, and the first shell avoiding groove 103 is also arranged. The protective isolation piece 200 is also provided with a mounting portion avoiding groove 204, which corresponds to the mounting portion 104. The opening surface of the mounting portion avoiding groove 204 faces the first shell 100, so that the mounting portion 104 can be embedded in the mounting portion avoiding groove 204.

[0058] The circuit board 300 is provided with an interface connected with an external device, which can be a type-c interface, or other types of interfaces according to requirements. The protective isolation piece 200 is provided with an isolation piece avoiding port 205 avoiding the interface, and the first shell 100 is provided with a shell avoiding port 102 avoiding the interface. In order to meet the requirements of dustproof and waterproof, the interface can be equipped with a rubber plug 900.

[0059] As shown in FIG. 1, the wire controller can also include a display 500, a mounting bracket 400 and a panel 800. Among them, the display 500 is used to display air conditioner parameter information, which can be fixed on the mounting bracket 400, and the mounting bracket 400 is fixed on the side of the circuit board 300 facing away from the first shell 100. The mounting bracket 400 can be fixed on the circuit board 300 by buckling.

[0060] The panel 800 is arranged on the second shell 700, and the second shell 700 is a frame type shell, that is, the second shell 700 will not block the display 500. The panel 800 has a control area and a display area corresponding to the display 500, and the control area has corresponding control points to realize the control of corresponding functions. The control mode of the control area can be touch mode, or in the form of keys. When the touch mode is adopted, the backlight 600 can be arranged, which is arranged corresponding to the control area, so that the control key points of the control area can be lit by the backlight 600, and the backlight 600 can also be fixed on the mounting bracket 400.

[0061] When the wire controller is assembled, the display 500 and the backlight 600 are fixed on the mounting bracket 400, and the mounting bracket 400 and the protective isolation piece 200 are fixed on both sides of the circuit board 300 respectively; then the whole is embedded on the second shell 700, and finally the second shell 700 is buckled with the first shell 100 as shown in FIG. 4, and the assembly of the wire controller is completed.

[0062] The application also discloses an air conditioner comprising the wire controller disclosed in the above embodiments. Since the wire controller has all the technical effects of the wire controller, this paper will not repeat them here.

[0063] As shown in the present application and claims, unless the context clearly indicates otherwise, the words "comprise", "comprising", "include", "including" and the like are to be construed in an inclusive sense, as opposed to an exclusive or exhaustive sense; that is to say, in the sense of "including, but not limited to". Similarly, the words "comprises", "comprising", "includes", "including" and the like can mean "including, but not limited to".

[0064] In the description of the present application, the words "arrange", "install", "connect" and the like should be understood in a broad sense, and the specific meaning of the above words in the present application can be reasonably determined by those skilled in the art in combination with the specific content of the technical solutions.

[0065] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be mutually referred to.

[0066] The principles and implementation modes of the present application are described by applying specific examples in the present specification. The above description of the embodiments is only for the purpose of helping to understand the method of the present application and its core idea. It should be pointed out that, for those skilled in the art, without departing from the principles of the present application, some improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A wire controller characterized by, Comprising: a first housing (100) and a second housing (700), a mounting space being formed between the first housing (100) and the second housing (700), the first housing (100) having a mounting portion (104) for mounting to a position to be mounted; a circuit board (300) disposed in the mounting space; a protective isolation piece (200), the protective isolation piece (200) being an injection molded piece fixed on the circuit board (300), and the protective isolation piece (200) being arranged at least between the circuit board (300) and the first housing (100).

2. The drive-by-wire controller of claim 1, wherein, A projection of the circuit board (300) on the protective isolation piece (200) is located within an area enclosed by an external contour of the protective isolation piece (200).

3. The drive-by-wire controller of claim 1, wherein, The protective isolation piece (200) is fixed on the circuit board (300) by a fastener or a buckle.

4. The drive-by-wire controller of claim 1, wherein, The protective isolation piece (200) is fixed on the circuit board (300) by a fastener, the circuit board (300) is provided with a fastener screw hole matched with a threaded portion of the fastener, and the protective isolation piece (200) is provided with a fastener light hole (206) through which the threaded portion of the fastener passes.

5. The drive-by-wire controller of claim 4, wherein, The protective isolation piece (200) is provided with a sink, and the fastener light hole (206) is arranged on a bottom wall of the sink, and a nut portion of the fastener is sunk into the sink.

6. The drive-by-wire controller of any one of claims 1-5, wherein, The protective isolation piece (200) is provided with a wire terminal avoiding hole penetrating through a wall thickness, and the wire terminal avoiding hole is located at a position corresponding to a wire terminal of the circuit board (300).

7. The drive-by-wire controller of claim 6, wherein, An edge of the wire terminal avoiding hole is provided with a reinforcing rib. And / or, The wire terminal avoiding hole is divided into a first wire terminal avoiding hole (201) and a second wire terminal avoiding hole (202) by a partition (207), the first wire terminal avoiding hole (201) corresponds to a first wire terminal (330) of the circuit board (300), and the second wire terminal avoiding hole (202) corresponds to a second wire terminal (340) of the circuit board (300).

8. The drive-by-wire controller of any one of claims 1-5, wherein, The protective isolation piece (200) is provided with an electronic component avoiding groove (203) corresponding to an electronic component on a side surface of the circuit board (300) facing the protective isolation piece (200); and / or, The protective isolation piece (200) is provided with a mounting portion avoiding groove (204) corresponding to the mounting portion (104).

9. The drive-by-wire controller of any one of claims 1-5, wherein, Further comprising: a display (500); a mounting bracket (400), the display (500) being fixed on the mounting bracket (400), and the mounting bracket (400) being fixed on a side of the circuit board (300) opposite to the first housing (100); a panel (800) disposed on the second housing (700), the panel (800) having a control area and a display area corresponding to the display (500).

10. An air conditioner characterized by comprising: Comprising the wire controller as claimed in any one of claims 1-9.

Citation Information

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