Electronic expansion valve coil structure for air conditioner

Abstract

The utility model relates to the technical field of electronic expansion valves, in particular to an electronic expansion valve coil structure for an air conditioner, which comprises a framework, a pin, a winding, a polar plate, a shell, an encapsulation layer, a card and a PCB (printed circuit board), the encapsulation layer is arranged on the framework, waterproof ribs are arranged on the encapsulation layer, the PCB is connected with the encapsulation layer, the PCB is in contact with the waterproof ribs, and the waterproof ribs are arranged on the shell. The card is installed on the encapsulation layer, and the encapsulation layer is welded and communicated with the shell. According to the electronic expansion valve coil structure for the air conditioner, the waterproof rib makes contact with the PCB, the PCB is lifted, and the insulation effect is guaranteed. Meanwhile, through arrangement of the positioning holes, the positioning columns, the positioning blocks and the positioning grooves, positioning of the cards is facilitated, and then installation of the cards is facilitated. And through the arrangement of a grounding hole and a grounding claw, bad hidden dangers in the installation process can be eliminated conveniently, and the assembly quality and precision are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic expansion valve technical field especially relates to a kind of electronic expansion valve coil structure for air conditioning. BACKGROUND

[0002] In recent years, with the dramatic climate change, people's living standards improve, air conditioner is used more and more widely, and energy saving and emission reduction and other factors influence, air conditioner is changed to variable frequency air conditioner, and the most important component in variable frequency air conditioner is variable frequency compressor and electronic expansion valve, and the quality of air conditioner is directly influenced by electronic expansion valve.

[0003] REFERENCE Figure 1 The current electronic expansion valve coil is mainly composed of framework, pin, winding, polar plate, shell, first sealing layer 7, first card 8, lead wire, wherein the framework is the intermediate carrier of all components, the framework is provided with pin hole and positioning hole for winding, and has positioning point for assembling with polar plate shell;The first sealing layer 7 is provided with water tank 71 for pin welding;The card is installed on the first sealing layer 7, and is welded with the shell,

[0004] The main problems of the current structure are as follows:

[0005] 1, the first sealing layer 7 is welded with the water tank 71 of pin, which causes poor insulation of the product,

[0006] 2, the first card 8 is welded with the shell, and then the coil is heated again, the quality of the winding is poor, and the deformation occurs after welding, which needs to be shaped when assembling with the valve body, the above problems can cause product failure or electrical protection failure, and further cause the valve body to be not working, the air conditioning system is invalid, and the problem is serious.

[0007] The above are the deficiencies of the existing electronic expansion valve coil, which cannot be completely eliminated by size optimization.

[0008] To solve the above problems, the utility model renews the function of electronic expansion valve coil through new structure, and effectively solves the above problems. UTILITY MODEL CONTENT

[0009] The utility model provides an electronic expansion valve coil structure for air conditioning to solve the technical problems in the prior art.

[0010] The utility model adopts the technical scheme that an electronic expansion valve coil structure for air conditioning, including framework, pin, winding, polar plate, shell, sealing layer, card and PCB board, the sealing layer is arranged on the framework, the sealing layer is provided with waterproof rib, the PCB board is connected with the sealing layer, the PCB board is in contact with the waterproof rib, the card is installed on the sealing layer, and the sealing layer is welded with the shell.

[0011] The utility model discloses a kind of electronic expansion valve coil structures of air conditioning, waterproof rib is contacted with PCB board, PCB board is lifted, so that insulation effect is guaranteed.

[0012] Further, the sealing layer is provided with grounding holes, and the card is provided with grounding claws matched with the grounding holes.

[0013] Further, the sealing layer is provided with positioning blocks, and the card is provided with positioning grooves matched with the positioning blocks.

[0014] Further, the bottom of the sealing layer is provided with mounting grooves for clamping the card.

[0015] Further, the card is fan-shaped.

[0016] Further, the sealing layer is provided with positioning columns, and the card is provided with positioning holes for the positioning columns to pass through.

[0017] Further, the positioning holes are two and located on both sides of the grounding claws.

[0018] Further, the card and the sealing layer are fixed by plastic welding.

[0019] Further, the shell is made of insulating material.

[0020] Further, the sealing layer is welded with the PCB board through the pins.

[0021] The utility model has the advantages that,

[0022] 1. The waterproof rib is contacted with the PCB board, the PCB board is lifted, so that the insulation effect is guaranteed;

[0023] 2. The positioning holes, the positioning columns, the positioning blocks and the positioning grooves are arranged, so that the card is positioned, and the installation of the card is facilitated;

[0024] 3. The grounding holes and the grounding claws are arranged, so that the hidden troubles in the installation process are eliminated, and the assembly quality and precision are improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] The utility model is further described below in combination with the drawings and examples.

[0026] Figure 1 It is a schematic diagram of a waterproof groove in the prior art.

[0027] Figure 2 It is an explosion structure schematic diagram of the whole electronic expansion valve coil structure of air conditioning in the utility model.

[0028] Figure 3Is the schematic diagram of the card and the envelope layer assembly structure in the utility model.

[0029] Figure 4 Is the schematic diagram of the coil structure assembly process in the utility model.

[0030] In the figure: 1, skeleton;11, pin;12, winding;13, polar plate;2, shell;3, envelope layer;31, grounding hole;32, positioning block;33, installation slot;34, positioning column;35, waterproof rib;4, card;41, grounding claw;42, positioning slot;43, positioning hole;5, PCB board;6, insulating shell;7, first envelope layer;71, waterproof groove;8, first card. DETAILED DESCRIPTION

[0031] The utility model will be explained in further detail in combination with the drawings. These drawings are all simplified schematic diagrams, and only the basic structure of the utility model is schematically shown, so it only shows the structure related to the utility model.

[0032] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. The features limited by "first" and "second" can be explicitly or implicitly included one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more. In the description of the utility model, it is necessary to explain that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0033] The utility model discloses an electronic expansion valve coil structure for air conditioner.

[0034] Reference Figure 2 And Figure 3The application discloses an air-conditioning electronic expansion valve coil structure which comprises a framework 1, a pin 11, a winding 12, a polar plate 13, an outer shell 2, an encapsulating layer 3, a card 4 and a PCB 5, wherein the encapsulating layer 3 is arranged on the framework 1, the encapsulating layer 3 is provided with a waterproof rib 35, the PCB 5 is connected with the encapsulating layer 3, the PCB 5 is in contact with the waterproof rib 35, the card 4 is arranged on the encapsulating layer 3, and the encapsulating layer 3 is welded with the outer shell 2 in a conductive mode. The waterproof rib 35 is in contact with the PCB 5, the PCB 5 is lifted, and thus the insulation effect is guaranteed.

[0035] Specifically, the encapsulating layer 3 is provided with a grounding hole 31, and the card 4 is fixedly connected with a grounding claw 41 matched with the grounding hole 31. The encapsulating layer 3 is fixedly connected with a positioning block 32, and the card 4 is provided with a positioning groove 42 matched with the positioning block 32. The bottom of the encapsulating layer 3 is provided with a mounting groove 33 for clamping the card 4, and the card 4 is in the shape of a sector, and the mounting groove 33 is matched with the card 4.

[0036] The encapsulating layer 3 is further fixedly connected with a positioning column 34, and the card 4 is provided with a positioning hole 43 for the positioning column 34 to pass through. The positioning hole 43 is provided with two and is located on the two sides of the grounding claw 41. The positioning column 34 and the positioning hole 43 are matched, so that the card 4 is positioned and mounted.

[0037] The card 4 is fixedly connected with the encapsulating layer 3 through plastic welding, the encapsulating layer 3 is further welded with an insulating outer shell 6, the insulating outer shell 6 surrounds the PCB, so as to guarantee the insulation effect. The encapsulating layer 3 is welded with the PCB 5 through the pin 11, so as to realize conduction.

[0038] With reference to Figure 4 The assembling steps are as follows: firstly, the pin 11 is assembled with the encapsulating layer 3 on the framework 1, then the winding 12 is wound on the framework 1, then the framework 1 with the winding 12 is assembled with the polar plate 13 and the outer shell 2, encapsulation is completed, the encapsulating layer 3 is formed, then the encapsulating layer 3 is welded with the card 4, the PCB 5 and the insulating outer shell 6 in sequence, and finally, the whole coil is processed through glue pouring.

[0039] Working principle: the waterproof rib 35 is in contact with the PCB 5, the PCB 5 is lifted, and thus the insulation effect is guaranteed. The positioning hole 43, the positioning column 34, the limiting block and the limiting groove are arranged, so that the card 4 is positioned and mounted. The grounding hole 31 and the grounding claw 41 are arranged, so that hidden troubles in the mounting process are eliminated, and the assembling quality and precision are improved.

[0040] Based on the above ideal embodiments of the application, the relevant staff can make various changes and modifications without deviating from the technical thought of the application. The technical scope of the application is not limited to the content in the specification, and must be determined according to the scope of claims.

Claims

1. An air conditioning electronic expansion valve coil structure, characterized by, The application relates to a waterproof card connector, which comprises a frame (1), a pin (11), a winding (12), a polar plate (13), a shell (2), an encapsulating layer (3), a card (4) and a PCB (5), the encapsulating layer (3) is arranged on the frame (1), waterproof ribs (35) are arranged on the encapsulating layer (3), the PCB (5) is connected with the encapsulating layer (3), the waterproof ribs (35) are in contact with the PCB (5), the card (4) is arranged on the encapsulating layer (3), and the encapsulating layer (3) is welded with the shell (2) in a conductive mode.

2. An electronic expansion valve coil structure for an air conditioner according to claim 1, wherein The encapsulating layer (3) is provided with grounding holes (31), and the card (4) is provided with grounding claws (41) matched with the grounding holes (31).

3. The electronic expansion valve coil structure for an air conditioner according to claim 1, wherein The encapsulating layer (3) is provided with positioning blocks (32), and the card (4) is provided with positioning grooves (42) matched with the positioning blocks (32).

4. An electronic expansion valve coil structure for an air conditioner according to claim 1, wherein The bottom of the encapsulating layer (3) is provided with an installation groove (33) for clamping the card (4).

5. An electronic expansion valve coil structure for an air conditioner as defined in claim 4, wherein The card (4) is in a fan shape.

6. An electronic expansion valve coil structure for an air conditioner as defined in claim 5, wherein The encapsulating layer (3) is provided with positioning columns (34), and the card (4) is provided with positioning holes (43) for the positioning columns (34) to pass through.

7. An electronic expansion valve coil structure for an air conditioner as defined in claim 6, wherein The positioning holes (43) are arranged on both sides of the grounding claws (41).

8. An electronic expansion valve coil structure for an air conditioner as defined in claim 1, wherein The card (4) is fixed by plastic welding with the encapsulating layer (3).

9. An electronic expansion valve coil structure for an air conditioner as defined in claim 1, wherein An insulating shell (6) is welded on the encapsulating layer (3), and the insulating shell (6) surrounds the PCB (5).

10. An electronic expansion valve coil structure for an air conditioner as defined in claim 1, wherein The encapsulating layer (3) is welded with the PCB (5) through the pin (11).

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