Wire controller and air conditioner

By fixing the protective isolation parts made of injection molded on the circuit board, the long protection process time and inconvenient maintenance of the circuit board is solved, and quick and easy protection and maintenance are achieved.

CN223207351UActive Publication Date: 2025-08-08QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +2
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Patent Information

Application Number
CN202422346795.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-25
Publication Date
2025-08-08
Estimated Expiration
2034-09-25

AI Technical Summary

Technical Problem

In the prior art, the protection process of circuit boards is long and inconvenient to repair, and the thickness of sprayed insulating paint and UV glue leads to difficulty in repair, and some electronic components cannot be effectively protected.

Method used

Protective isolation parts are used as injection molded parts to fix the circuit board to achieve insulation isolation, dustproof and waterproofing, simplify the protection process, and can be quickly disassembled and assembled during maintenance.

Benefits of technology

It shortens the protection process time, improves maintenance convenience, reduces maintenance difficulty, and enhances the insulation and protection effect of the circuit board.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a wire controller and an air conditioner, the wire controller comprises a first housing and a second housing, an installation space is formed between the first housing and the second housing, and the first housing is provided with an installation part used for being installed to a position to be installed; the circuit board is arranged in the mounting space; and the protection isolation piece is an injection molding piece fixed on the circuit board, and the protection isolation piece is at least arranged between the circuit board and the first shell. Compared with a protection mode of spraying insulating paint, UV glue and pasting an insulating spacer in the prior art, the protection process duration is short, protection can be completed only by fixing the protection isolation piece on the circuit board, and in the maintenance process, the protection isolation piece only needs to be detached, and after the circuit board is maintained, the protection isolation piece can be fixed on the circuit board. And then the protective isolation piece is fixed on the circuit board, so that the maintenance is relatively convenient.
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Description

Technical Field

[0001] The utility model belongs to the technical field of air conditioners, and in particular relates to a wire controller and an air conditioner. Background Art

[0002] In the field of multi-split air conditioners, indoor units typically come standard with a wired controller to replace traditional remote controls. A wired controller typically consists of a housing consisting of a rear shell and a front shell, and a circuit board housed within the housing. The circuit board requires insulation, dustproofing, and waterproofing. Conventional technology typically employs spraying insulating varnish or UV (ultraviolet) glue on the circuit board for this purpose. To meet the required protection requirements, multiple coats of insulating varnish and UV glue are required to achieve the desired thickness. During the spraying process, the second coat of insulating varnish must be applied only after the previous coat has dried sufficiently to prevent trapped water vapor, which can affect product performance and increase the time required for the protective process.

[0003] When repairing a circuit board, you must first remove the UV glue and insulating varnish. Spraying a thick layer of insulating varnish and UV glue will make subsequent repairs of the circuit board difficult, and the thicker the UV glue and insulating varnish, the higher the cost of protection. Some electronic components on the circuit board cannot be sprayed with UV glue and insulating varnish, such as dial switches and buzzers. The insulating varnish needs to be applied away from the dial switch to avoid affecting the dialing effect; it also needs to be applied away from 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 bonded to the circuit board by gluing. The adhesive fixing method is easy to fall off, resulting in protection failure.

[0004] Therefore, how to reduce the duration of the protection process and improve the convenience of maintenance is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of the present invention is to provide a wired controller to reduce the protection process time and improve the convenience of maintenance;

[0006] Another object of the present invention is to provide an air conditioner having the above-mentioned wired controller.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A wire controller, comprising:

[0009] A first shell and a second shell, wherein an installation space is formed between the first shell and the second shell, and the first shell has an installation portion for being installed at a location to be installed;

[0010] A circuit board is arranged in the installation space;

[0011] The protective isolator is an injection molded part fixed on the circuit board, and is arranged at least between the circuit board and the first shell.

[0012] Optionally, in the above-mentioned wired controller, a projection of the circuit board on the protective isolation member is located within an area enclosed by an outer contour of the protective isolation member.

[0013] Optionally, in the above-mentioned wired controller, the protective isolation piece is fixed to the circuit board by a fastener or a buckle.

[0014] 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 that cooperates with the threaded portion of the fastener, and the protective isolation member is provided with a fastener light hole for the threaded portion of the fastener to pass through.

[0015] Optionally, in the above-mentioned wired controller, a recessed groove is provided on the protective isolation member, the fastener aperture is provided on the bottom wall of the recessed groove, and the nut portion of the fastener is sunk into the recessed groove.

[0016] Optionally, in the above-mentioned wired controller, the protective isolation member is provided with a terminal avoidance hole penetrating through the wall thickness, and the terminal avoidance hole is located at a position corresponding to the terminal of the circuit board.

[0017] Optionally, in the above-mentioned wired controller, the edge of the terminal avoidance hole is provided with a reinforcing rib; and / or,

[0018] The terminal avoidance hole is divided into a first terminal avoidance hole and a second terminal avoidance hole by a partition. The first terminal avoidance hole corresponds to the first terminal of the circuit board, and the second terminal avoidance hole corresponds to the second terminal of the circuit board.

[0019] Optionally, in the above-mentioned wired controller, the protective isolator is provided with an electronic component avoidance groove, and the electronic component avoidance groove corresponds to the electronic component on the surface of the circuit board on one side facing the protective isolator.

[0020] Optionally, in the above-mentioned wired controller, the protective isolation member is provided with a mounting portion avoidance groove, and the mounting portion avoidance groove corresponds to the mounting portion.

[0021] Optionally, the above-mentioned wire controller further includes:

[0022] monitor;

[0023] a mounting bracket, the display being fixed on the mounting bracket, the mounting bracket being fixed to a side of the circuit board facing away from the first housing;

[0024] A panel is provided on the second shell, and the panel comprises a control area and a display area corresponding to the display.

[0025] The wired controller provided by the present invention has a protective isolator added between the first housing and the circuit board. The protective isolator is fixed to the circuit board so that the circuit board and the first housing are separated by the protective isolator. At the same time, the insulating properties of the protective isolator are utilized to insulate and isolate the electronic components on the circuit board, preventing dust, water, etc. from entering the circuit board through the first housing and affecting the performance of the circuit board. Compared with the existing protection method of spraying insulating paint and UV glue and sticking insulating gaskets, the protective process of the present invention is shorter. The protection is completed by only fixing the protective isolator to the circuit board. Moreover, during maintenance, only the protective isolator needs to be removed, and after the circuit board is repaired, the protective isolator can be fixed to the circuit board, making maintenance more convenient.

[0026] An air conditioner comprises the wired controller as described in any one of the above items.

[0027] The air conditioner provided by the present invention has all the technical effects of the above-mentioned wired controller, and thus will not be described in detail herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0029] Figure 1 An exploded view of a wired controller provided in an embodiment of the present utility model;

[0030] Figure 2 A schematic structural diagram of a protective isolation member provided in an embodiment of the present utility model;

[0031] Figure 3 A schematic structural diagram of a first housing provided in an embodiment of the present utility model;

[0032] Figure 4 A schematic diagram of the structure of the wired controller provided in the present utility model when it is installed;

[0033] Figure 5 A schematic diagram of the structure of the control line when installing the embodiment of the utility model;

[0034] Figure 6 A schematic diagram of the structure of the power cord when installing the embodiment of the utility model;

[0035] Figure 7 A schematic diagram of the structure of the control line provided by an embodiment of the present utility model when connected to the first wiring terminal;

[0036] Figure 8 This is a structural diagram of the power line provided by an embodiment of the present utility model when connected to the second terminal.

[0037] The meanings of the reference numerals in the figures are as follows:

[0038] 100 - first housing; 101 - first housing wiring hole; 102 - housing avoidance opening; 103 - first housing avoidance groove; 104 - mounting portion;

[0039] 200 - protective isolator; 201 - first terminal avoidance hole; 202 - second terminal avoidance hole; 203 - electronic component avoidance groove; 204 - mounting portion avoidance groove; 205 - isolator avoidance opening; 206 - fastener light hole; 207 - partition;

[0040] 300-circuit board; 310-control line; 320-power line; 330-first terminal; 340-second terminal;

[0041] 400-Mounting bracket;

[0042] 500-display;

[0043] 600-backlight parts;

[0044] 700- second shell;

[0045] 800-panel;

[0046] 900-Rubber stopper. DETAILED DESCRIPTION

[0047] The core of this utility model is to provide a wired controller to reduce the duration of the protection process and improve the convenience of maintenance;

[0048] Another core of the present invention is to provide an air conditioner with the above-mentioned wire controller.

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0050] The circuit board of a wired controller requires insulation, dustproofing, and waterproofing. Existing technologies primarily use spraying insulating varnish and UV adhesive for this protection, supplemented by affixing insulating gaskets to areas where the paint can't be applied. However, the insulating varnish spraying process is complex and requires repeated application. Furthermore, the previous coat of paint must be completely dry before the next coat can be applied, resulting in a lengthy protective process.

[0051] Based on this, the embodiment of the present utility model discloses a wire controller, such as Figure 1 As shown, the wired controller includes a first housing 100, a second housing 700, a circuit board 300 and a protective isolation member 200. A mounting space is formed between the first housing 100 and the second housing 700. The first housing 100 has a mounting portion 104 (such as Figure 3 The mounting portion 104 may be a mounting slot for mounting a locking screw, and a mounting hole for the locking screw to pass through is defined in the mounting slot, so that the first housing 100 can be fixed to a junction box or a wall by passing the locking screw through the mounting hole on the mounting portion 104.

[0052] In this embodiment, the first housing 100 is the rear housing of the wired controller, and the second housing 700 is the front housing of the wired controller. The circuit board 300 is disposed in the installation space and is fixed by the first housing 100 and the second housing 700.

[0053] The protective spacer 200 is an injection-molded part fixed to the circuit board 300. Because it is an injection-molded part, it has insulating properties, providing insulation, dustproofing, waterproofing, and other protective functions. The protective spacer 200 is positioned at least between the circuit board 300 and the first housing 100. In this embodiment, the protective spacer 200 can be positioned only on the side of the circuit board 300 facing the first housing 100, or on both sides of the circuit board 300. The specific placement of the protective spacer 200 can be selected based on the isolation and protection requirements.

[0054] The wired controller provided by the present invention has a protective spacer 200 added between the first housing 100 and the circuit board 300. The protective spacer 200 is fixed to the circuit board 300 so that the circuit board 300 and the first housing 100 are separated by the protective spacer 200. At the same time, the insulating properties of the protective spacer 200 are utilized to insulate and isolate the electronic components on the circuit board 300, preventing dust, water, etc. from entering the circuit board 300 through the first housing 100 and affecting the performance of the circuit board 300. Compared with the prior art protection method of spraying insulating paint and UV glue and sticking insulating gaskets, the protective process of the present invention is shorter. The protection is completed by only fixing the protective spacer 200 to the circuit board 300. Moreover, during maintenance, it is only necessary to remove the protective spacer 200, and after the circuit board 300 is repaired, the protective spacer 200 is fixed to the circuit board 300, which is more convenient for maintenance.

[0055] In a specific embodiment of the present invention, the projection of the circuit board 300 on the protective isolator 200 is located within the area enclosed by the outer contour of the protective isolator 200. That is, in this embodiment, the area enclosed by the outer contour of the protective isolator 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 isolator 200 can be designed to be slightly larger than the area of the circuit board 300, so that the protective isolator 200 can cover the edge of the circuit board 300 and achieve full coverage of the circuit board 300. It will be understood by those skilled in the art that since the circuit board 300 generally does not have electronic components, the area enclosed by the outer contour of the protective isolator 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 components that need to be protected and isolated.

[0056] The protective spacer 200 can be secured to the circuit board 300 via fasteners or clips. If the protective spacer 200 is secured to the circuit board 300 via clips, elastic clips are provided on both sides of the protective spacer 200. The elastic clips are designed to deform to a certain extent under external force, allowing them to snap onto the edges of the circuit board 300.

[0057] If the protective isolation member 200 is fixed to the circuit board 300 by a fastener, the circuit board 300 is provided with a fastener screw hole that matches the threaded portion of the fastener. Figure 2As shown, protective spacer 200 is provided with a fastener aperture 206 for the threaded portion of a fastener to pass through. To install protective spacer 200, first place protective spacer 200 against the side of circuit board 300 facing first housing 100, and align fastener aperture 206 on protective spacer 200 with the fastener screw hole on circuit board 300. Then, insert one end of the threaded portion of the fastener through fastener aperture 206 and tighten it into the fastener screw hole, securing protective spacer 200 against circuit board 300 and providing complete isolation and protection for circuit board 300.

[0058] To prevent the protruding nut of the fastener from abutting against the first housing 100 and bending the circuit board 300, thereby deforming and damaging the circuit board 300, in this embodiment, a recessed groove is provided on the protective spacer 200, and the fastener aperture 206 is provided on the bottom wall of the recessed groove. The nut portion of the fastener is sunken into the recessed groove, thereby preventing the protruding nut portion from bending the circuit board 300.

[0059] In order to facilitate wiring, the protective isolation member 200 is provided with a terminal avoidance hole that penetrates the wall thickness. The terminal avoidance hole is located at a position corresponding to the terminal of the circuit board 300. Since wiring needs to be done through the back side of the first shell 100. Figure 3 As shown, in order to facilitate threading, a first housing wiring hole 101 also needs to be provided on the first housing 100 .

[0060] like Figure 5-Figure 8 As shown, those skilled in the art will appreciate that the wired controller needs to be connected to a control line 310 and a power line 320. Accordingly, the circuit board 300 has a first terminal 330 and a second terminal 340 connected to the control line 310 and the power line 320.

[0061] To connect the cables, first secure the protective spacer 200 to the circuit board 300, allowing the first and second terminals 330 and 340 to be exposed through the terminal clearance holes. Then, pass the control wire 310 through the first housing wiring hole 101 and plug it into the first terminal 330. Pass the power wire 320 through the first housing wiring hole 101 and press it against the second terminal 340.

[0062] Since the protective spacer 200 only needs to provide a protective isolation function, its thickness does not need to be designed to be thick. The provision of the terminal avoidance hole will affect the strength of the protective spacer 200. To avoid the impact on the strength of the protective spacer 200 caused by the excessive size of the terminal avoidance hole, in this embodiment, the terminal avoidance hole is divided into a first terminal avoidance hole 201 and a second terminal avoidance hole 202 by a partition 207. The first terminal avoidance hole 201 corresponds to the first terminal 330 of the circuit board 300, and the second terminal avoidance hole 202 corresponds to the second terminal 340 of the circuit board 300.

[0063] Specifically, in this embodiment, the portion between the first terminal block 330 and the second terminal block 340 on the circuit board 300 does not require wiring, so a hollow structure is not required. Instead, the portion can be connected via the partition 207, thereby reducing the area of the terminal clearance hole and improving the strength of the protective spacer 200. Furthermore, reinforcing ribs are provided at the edges of the terminal clearance hole, making the edges thicker than other locations, thereby reducing the reduction in strength caused by the opening.

[0064] like Figure 2 As shown, in order to prevent excessive force from acting on the electronic components of the circuit board 300 after the protective isolator 200 is installed, resulting in the electronic components being crushed, in this embodiment, an electronic component avoidance groove 203 is provided on the protective isolator 200. The electronic component avoidance groove 203 corresponds to the electronic components on the side surface of the circuit board 300 facing the protective isolator 200. The electronic component avoidance groove 203 protrudes toward the first shell 100 to accommodate the electronic components; this ensures that the protective isolator 200 can be attached to the substrate of the circuit board 300 and avoids crushing the electronic components on the substrate.

[0065] It should be noted that a first housing escape groove 103 is also provided at a position on the first housing 100 corresponding to the electronic component escape groove 203. The protective isolator 200 is also provided with a mounting portion escape groove 204, which corresponds to the mounting portion 104. The opening of the mounting portion escape groove 204 faces the first housing 100, allowing the mounting portion 104 to fit within the mounting portion escape groove 204.

[0066] The circuit board 300 is provided with an interface for connecting to external devices. This interface can be a Type-C interface, or other types of interfaces can be provided as needed. The protective isolation member 200 is provided with an isolation member avoidance opening 205 to avoid the interface, and the first housing 100 is provided with a housing avoidance opening 102 to avoid the interface. To ensure dust and water resistance, the interface can be equipped with a rubber plug 900.

[0067] like Figure 1As shown, the wired controller may further include a display 500, a mounting bracket 400, and a panel 800. The display 500 is used to display air conditioning parameter information and can be fixed to the mounting bracket 400. The mounting bracket 400 is fixed to the side of the circuit board 300 facing away from the first housing 100. The mounting bracket 400 can be fixed to the circuit board 300 by means of a snap-fit connection.

[0068] The panel 800 is disposed on the second housing 700. The second housing 700 is a frame-type housing, that is, the second housing 700 does not block the display 500. The panel 800 has a control area and a display area corresponding to the display 500. The control area has corresponding control points to control the corresponding functions. The control method of the control area can be touch-sensitive or in the form of keys. When the touch method is adopted, a backlight 600 can be provided. The backlight 600 is arranged corresponding to the control area so that the control key points of the control area can be illuminated by the backlight 600. The backlight 600 can also be fixed to the mounting bracket 400.

[0069] When assembling the wire controller, fix the display 500 and the backlight 600 on the mounting bracket 400, and fix the mounting bracket 400 and the protective isolation member 200 on both sides of the circuit board 300 respectively; then embed the whole into the second shell 700, and finally Figure 4 As shown, the second shell 700 is snap-fitted to the first shell 100 to complete the assembly of the wired controller.

[0070] The present invention also discloses an air conditioner including the wired controller disclosed in the above embodiment. Due to the wired controller, the air conditioner has all the technical effects of the wired controller, which will not be described in detail herein.

[0071] As used in this application and the claims, unless the context clearly indicates an exception, the terms "a," "an," "an," and / or "the" are not intended to refer to the singular and may include the plural, unless the context clearly indicates otherwise. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements. The phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, product, or apparatus that includes the elements.

[0072] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0073] The various embodiments in this 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 referenced to each other.

[0074] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A wire controller, characterized in that: include: A first shell (100) and a second shell (700), wherein an installation space is formed between the first shell (100) and the second shell (700), and the first shell (100) has an installation portion (104) for installation at a location to be installed; A circuit board (300) is arranged in the installation space; A protective isolating member (200) is an injection molded member fixed on the circuit board (300), and the protective isolating member (200) is arranged at least between the circuit board (300) and the first housing (100).

2. The wired controller according to claim 1, wherein: The projection of the circuit board (300) on the protective isolation member (200) is located within the area surrounded by the outer contour of the protective isolation member (200).

3. The wired controller according to claim 1, wherein: The protective isolation piece (200) is fixed to the circuit board (300) via a fastener or a buckle.

4. The wired controller according to claim 1, wherein: The protective isolator (200) is fixed to the circuit board (300) via a fastener, the circuit board (300) is provided with a fastener screw hole that cooperates with the threaded portion of the fastener, and the protective isolator (200) is provided with a fastener light hole (206) for the threaded portion of the fastener to pass through.

5. The wired controller according to claim 4, characterized in that: A sink groove is provided on the protective isolation piece (200), the fastener light hole (206) is provided on the bottom wall of the sink groove, and the nut portion of the fastener is sunk into the sink groove.

6. The wired controller according to any one of claims 1 to 5, characterized in that: The protective isolation piece (200) is provided with a terminal avoidance hole that penetrates the wall thickness, and the terminal avoidance hole is located at a position corresponding to the terminal of the circuit board (300).

7. The wired controller according to claim 6, wherein: The edge of the terminal avoidance hole is provided with a reinforcing rib; and / or, The terminal avoidance hole is divided into a first terminal avoidance hole (201) and a second terminal avoidance hole (202) by a partition (207), wherein the first terminal avoidance hole (201) corresponds to the first terminal (330) of the circuit board (300), and the second terminal avoidance hole (202) corresponds to the second terminal (340) of the circuit board (300).

8. The wired controller according to any one of claims 1 to 5, characterized in that: The protective isolating member (200) is provided with an electronic component avoidance groove (203), the electronic component avoidance groove (203) corresponding to the electronic component on the surface of the circuit board (300) facing the protective isolating member (200); and / or, The protective isolation piece (200) is provided with a mounting portion avoidance groove (204), and the mounting portion avoidance groove (204) corresponds to the mounting portion (104).

9. The wired controller according to any one of claims 1 to 5, characterized in that: Also includes: 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) facing away from the first housing (100); A panel (800) is provided on the second shell (700), and the panel (800) has a control area and a display area corresponding to the display (500).

10. An air conditioner, characterized in that: The invention comprises a wired controller as described in any one of claims 1 to 9.