A wiring protection device for an air conditioner electric control box

Abstract

The utility model discloses a kind of wiring protection devices for air-conditioning electric control box, it belongs to air-conditioning manufacturing technical field, including connecting seat, cover is movably arranged in the front side of connecting seat, and both form connecting cavity between each other when closing, bottom opening is provided with in the bottom of connecting seat corresponding connecting cavity, bottom opening and connecting cavity are interconnected, wiring terminal is further provided on connecting seat, part of wiring terminal is located in connecting cavity, another part is located outside connecting cavity, and insulating groove is provided in connecting seat corresponding wiring terminal. When covering connecting cavity by cover, not only effectively reduce the strong electric connection position between external impurity and water vapor etc. and power cord and wiring terminal, avoid circuit breaking, but also can avoid electric shock problem when operating personnel connects and maintains mainboard and air conditioner control panel, expansion board and sensor etc. Electrical components, improve the safety and protectivity of air-conditioning electric control box.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner manufacturing technology, specifically a wiring protection device for an air conditioner electrical control box. Background Technology

[0002] An electrical control box is a component in an air conditioner that enables electrical control. Existing air conditioner electrical control boxes generally include a box body, a mounting plate located in the box body, and multiple electrical components, which are mounted on the mounting surface of the mounting plate.

[0003] For example, Chinese utility model patent CN202121839212.0 discloses an electrical control box, an outdoor air conditioner unit, and an air conditioner. The control box includes a box body with a power supply cord on the front panel for connecting to mains power, such as 380V industrial power. A power connector connects to the power cord and, in turn, to the main board to supply power to various components of the outdoor air conditioner unit. This is a high-voltage connection between the power connector and the power cord. However, this high-voltage connection is exposed, making it susceptible to short circuits caused by external impurities and moisture, affecting the stability of the air conditioner. Furthermore, the exposed high-voltage connection is located below the main board, which needs to connect to control boards, expansion boards, and sensors. When operators need to connect or maintain the main board to these different electrical components, they are easily exposed to the high-voltage connection, potentially causing electric shock, resulting in a low safety factor. Therefore, further improvements are necessary. Utility Model Content

[0004] The present invention aims to provide a wiring protection device for an air conditioner electrical control box to overcome the shortcomings of the prior art.

[0005] A wiring protection device for an air conditioner control box designed for this purpose includes a connector, a cover plate movably disposed on the front side of the connector, and the two forming a connection cavity when closed, a bottom opening corresponding to the connection cavity is provided on the bottom of the connector, the bottom opening communicating with the connection cavity, and a wiring terminal is also provided on the connector, with one part of the wiring terminal located inside the connection cavity and the other part located outside the connection cavity, and an isolation groove is provided on the connector corresponding to the wiring terminal.

[0006] The connector is made of plastic, and the terminals are metal parts, and there are several of them. The terminals are integrally injection molded with the connector. The terminals are arranged linearly at intervals in the direction away from the bottom opening, and adjacent terminals are separated by isolation grooves.

[0007] The connecting seat consists of a base plate, a left side plate and a right side plate located on the left and right sides of the base plate, and a top plate located on top of the base plate. A connecting edge is provided between the lower parts of the left side plate and the right side plate. A bottom opening is formed between the base plate, the left side plate, the right side plate, and the connecting edge, and a front opening is formed between the left side plate, the right side plate, the connecting edge, and the top plate. The front opening is connected to the connecting cavity. The cover plate can open or cover the front opening when it is in motion.

[0008] The left and right sides are respectively provided with a transition part and a snap-fit ​​part, and the two sides of the cover plate are respectively provided with a transition fitting part and a snap-fit ​​fitting part. The cover plate is rotatably mounted on the transition part through the transition fitting part, and is snapped or separated from the snap-fit ​​part through the snap-fit ​​fitting part.

[0009] The outer side wall of the connecting edge is provided with a protrusion, and the inner wall of the lower part of the cover plate is provided with a groove. When the cover plate covers the front opening, the left side, right side and top of the cover plate rest against the left side plate, right side plate and top plate respectively. The cover plate is in concave-convex fit with the protrusion through the groove.

[0010] A sealing element is provided between the connecting seat and the cover plate. The left side, right side, top, and groove of the cover plate are respectively sealed with the left side plate, right side plate, top plate, and ridge through the sealing element.

[0011] The right side plate has a fastening part near the snap-fit ​​part, and the cover plate has a fastening mating part near the snap-fit ​​mating part. When the cover plate covers the front opening, the fastening mating part corresponds to the fastening part, and the two are fixedly connected by fasteners.

[0012] The top plate has a lower boss extending towards the connecting cavity and an upper boss extending away from the connecting cavity. The lower boss is located inside the connecting cavity, and the upper boss is located outside the connecting cavity. The wiring terminal is provided with an inner connection port and an outer connection port. The inner connection port is located on the lower boss and is connected to an inner connection screw. The outer connection port is located on the upper boss and is connected to an outer connection screw.

[0013] The upper and lower bosses are respectively provided with partition strips, and adjacent partition strips form an isolation groove with the top plate.

[0014] A bottom seal is also provided on the bottom opening.

[0015] This utility model connects the wiring terminals located inside the connection cavity to the power cord with a high voltage, and connects the wiring terminals located outside the connection cavity to the main board of the air conditioner, so that the main board can obtain working power. At the same time, the wiring terminals located inside the connection cavity can be opened or covered by the opening and closing of the cover plate.

[0016] When the terminal block section inside the connection cavity is opened, operators can easily connect the power cord to the terminal block. When the terminal block section inside the connection cavity is covered, it not only effectively reduces the contact of external impurities and moisture with the high-voltage connection point between the power cord and the terminal block, preventing circuit breaks, but also avoids electric shock problems when operators connect and maintain the main board, control board, expansion board, and sensors of the air conditioner, thus improving the safety and protection of the air conditioner control box. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the present invention (cover closed).

[0018] Figure 2 This is a schematic diagram of the assembly structure from another perspective of an embodiment of the present invention (cover closed).

[0019] Figure 3 This is a schematic diagram of the assembly cross-sectional structure of an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the assembly structure of an embodiment of the present invention (cover plate open).

[0021] Figure 5 This is a schematic diagram of the assembly structure from another perspective of an embodiment of the present invention (cover plate open).

[0022] Figure 6 This is an exploded structural diagram of an embodiment of the present invention.

[0023] Figure 7 This is an exploded structural diagram from another perspective of an embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram of the connector. Detailed Implementation

[0025] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] See Figures 1-8The wiring protection device for the air conditioner control box includes a connector 1, a cover plate 2 is movably provided on the front side of the connector 1, and the two form a connecting cavity 3 when closed. The bottom of the connector 1 is provided with a bottom opening 4 corresponding to the connecting cavity 3, and the bottom opening 4 communicates with the connecting cavity 3. The connector 1 is also provided with a wiring terminal 5, part of which is located inside the connecting cavity 3 and the other part is located outside the connecting cavity 3. The connector 1 is provided with an isolation groove corresponding to the wiring terminal 5.

[0028] The terminal 5 located inside the connecting cavity 3 is connected to the power cord via a high-voltage connection, and the terminal 5 located outside the connecting cavity 3 is connected to the main board of the air conditioner, so that the main board can obtain working power. At the same time, the terminal 5 located inside the connecting cavity 3 is opened or closed by the movement of the cover plate 2.

[0029] When the terminal 5 part located in the connection cavity 3 is opened, the operator can easily connect the power cord to the terminal 5. When the terminal 5 part located in the connection cavity 3 is covered, it not only effectively reduces the contact of external impurities and moisture with the high-voltage connection point between the power cord and the terminal 5, avoiding circuit breakage, but also avoids electric shock problems when the operator connects and maintains the main board and the air conditioner's control board, expansion board, and sensors and other electrical components, thus improving the safety and protection of the air conditioner control box.

[0030] This wiring protection device is used in the air conditioner control box. During assembly, the bottom opening 4 corresponds to the wire hole on the front panel of the air conditioner control box. The power cord extends into the connection cavity 3 through the wire hole and the bottom opening 4. The bottom opening 4 is also equipped with a bottom seal, which seals with the front panel to reduce external impurities and moisture from entering the connection cavity 3 through the gap between the bottom opening 4 and the front panel.

[0031] The connector 1 is made of plastic, and the terminals 5 are metal parts, and there are several of them. The terminals 5 and the connector 1 are integrally injection molded. During production, the terminals 5 are placed in the mold according to the pre-assembly position, and then the thermoplastic or thermosetting plastic is molded into the connector 1 through the mold, thus completing the integral molding between the terminals 5 and the connector 1.

[0032] Among them, a number of terminals 5 are arranged linearly at intervals in the direction away from the bottom opening 4, and adjacent terminals 5 are separated by isolation grooves.

[0033] Because adjacent terminals 5 are separated by an insulating groove, accidental contact between adjacent terminals 5 and the main board can be avoided, thus improving the product's lifespan. In addition, after assembly, the main board is placed above the exposed terminals 5. The cooperation between the main board and the insulating groove can block the electrical connection between the main board and the terminals 5, thus preventing electric shock problems when operators connect and maintain the main board to the air conditioner's control board, expansion board, and sensors.

[0034] The connecting seat 1 is composed of a base plate 1.1, a left side plate 1.2 and a right side plate 1.3 located on the left and right sides of the base plate 1.1, and a top plate 1.4 located on the top of the base plate 1.1. A connecting edge 1.5 is provided between the lower parts of the left side plate 1.2 and the right side plate 1.3. The provision of the connecting edge 1.5 can improve the structural strength of the connecting seat 1.

[0035] The bottom opening 4 is formed between the bottom plate 1.1, the left side plate 1.2, the right side plate 1.3, and the connecting edge 1.5. The front opening 6 is formed between the left side plate 1.2, the right side plate 1.3, the connecting edge 1.5, and the top plate 1.4. The front opening 6 is connected to the connecting cavity 3. The cover plate 2 opens or covers the front opening 6 when it is in motion.

[0036] The left side plate 1.2 and the right side plate 1.3 are respectively provided with a transition part 1.6 and a snap-fit ​​part 1.7. The cover plate 2 is provided with a transition fitting part 2.1 and a snap-fit ​​fitting part 2.2 on both sides. The cover plate 2 is rotatably mounted on the transition part 1.6 through the transition fitting part 2.1 and is mutually snapped or separated from the snap-fit ​​part 1.7 through the snap-fit ​​fitting part 2.2.

[0037] The adapter 1.6 is a rotating shaft, and the adapter fitting part 2.1 is a rotating hole. The two are connected and fitted together, so that the cover plate 2 can be rotated laterally to open and close in front of the connecting seat 1. The latching part 1.7 is a latch, and the latch fitting part 2.2 is a latching hole. The two are engaged or disengaged to enable the cover plate 2 to be positioned and closed, avoiding the problem of accidental opening after it is closed.

[0038] The outer side wall of the connecting edge 1.5 is provided with a protruding rib 1.8, and the inner wall of the lower part of the cover plate 2 is provided with a groove 2.3. When the cover plate 2 covers the front opening 6, the left side, right side and top of the cover plate 2 rest on the left side plate 1.2, right side plate 1.3 and top plate 1.4 respectively. The cover plate 2 is in concave-convex fit with the protruding rib 1.8 through the groove 2.3.

[0039] Among them, the left side, right side and top of the cover plate 2 are respectively in planar contact with the left side plate 1.2, right side plate 1.3 and top plate 1.4. The groove 2.3 and the protrusion 1.8 are in concave-convex fit. That is, when the cover plate 2 is closed, it forms a planar and concave-convex fit relationship with the connecting seat 1, which can realize the positioning of the cover plate 2 when closed and avoid the problem of shaking or swaying when closed.

[0040] A sealing element is provided between the connecting seat 1 and the cover plate 2. The left side, right side, top, and groove 2.3 of the cover plate 2 are respectively sealed with the left side plate 1.2, right side plate 1.3, top plate 1.4, and protrusion 1.8 through the sealing element.

[0041] The cover seal is an adhesive sealing strip that is pasted on the left, right, top and groove 2.3 of the cover plate 2. When the cover plate 2 is closed, it can seal with the front opening 6 of the connecting seat 1 through the cover seal, thereby reducing the entry of external impurities and moisture into the connecting cavity 3 through the gap between the connecting seat 1 and the cover plate 2.

[0042] The right side plate 1.3 has a fastening part 1.9 near the snap-fit ​​part 1.7, and the cover plate 2 has a fastening mating part 2.4 near the snap-fit ​​mating part 2.2. When the cover plate 2 covers the front opening 6, the fastening mating part 2.4 corresponds to the fastening part 1.9 and the two are fixedly connected by fasteners.

[0043] The fastening fitting part 2.4 and the fastening part 1.9 are fastening holes. After assembly, the cover plate 2 can be positioned by snap-fit ​​and fixed by fasteners, thereby effectively ensuring the stability of the cover plate 2 after it is closed.

[0044] The top plate 1.4 has a lower boss 1.10 extending towards the connecting cavity 3 and an upper boss 1.11 extending away from the connecting cavity 3. The lower boss 1.10 is located inside the connecting cavity 3, and the upper boss 1.11 is located outside the connecting cavity 3. The terminal block 5 is provided with an inner connection port 5.1 and an outer connection port 5.2. The inner connection port 5.1 is located on the lower boss 1.10 and is connected to an inner connection screw 7. The outer connection port 5.2 is located on the upper boss 1.11 and is connected to an outer connection screw 8.

[0045] The lower boss 1.10 and the upper boss 1.11 facilitate the connection between the terminal block 5 and the power cord and the motherboard. At the same time, the power cord is fastened to the terminal block 5 through the cooperation between the inner connection port 5.1 and the inner connection screw 7. The extension wire of the motherboard is fastened to the terminal block 5 through the cooperation between the outer connection port 5.2 and the outer connection screw 8. This effectively ensures the fixation between the motherboard, the terminal block 5, and the power cord.

[0046] The upper boss 1.11 and the lower boss 1.10 are respectively provided with partition strips 1.12, and the adjacent partition strips 1.12 form an isolation groove with the top plate 1.4. The base plate 1.1 is provided with assembly holes 1.14 for assembly. The connector 1 can be fixedly assembled onto the air conditioner control box by setting fasteners on the assembly holes 1.14. At the same time, the base plate 1.1 is also provided with a positioning plate 10 and a wire guide plate 11. The positioning plate 10 is provided with a positioning post 10.1, and the wire guide plate 11 is provided with a wire guide hole 11.1. The base plate 1.1 is provided with a protrusion 1.13 corresponding to the positioning post 10.1. The positioning post 10.1 and the protrusion 1.13 are spaced apart and pre-positioned with the positioning holes provided on the air conditioner control box, which can realize the pre-positioning between the connector 1 and the air conditioner control box, so that the two can be assembled in the designated position. The base plate 1.1 is provided with a neutral wire through hole 1.15 corresponding to the wire guide hole 11.1. The wire guide hole 11.1 and the neutral wire through hole 1.15 correspond to each other. The neutral wire can pass through the wire guide hole 11.1 and the neutral wire through hole 1.15 to extend into the connecting cavity 3 and connect to the terminal 5.

[0047] In addition, the positioning plate 10 can block the through holes set by the lower boss 1.10 and the upper boss 1.11 corresponding to the inner connecting screw 7 and the outer connecting screw 8, respectively. The setting of the wire guide plate 11 can prevent the neutral wire from contacting the connector 1 when it extends, which not only improves the extension stability of the neutral wire, but also improves the service life of the connector 1.

[0048] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A wiring protection device for an air conditioner control box, comprising a connector (1), characterized in that: The front side of the connector (1) is provided with a cover plate (2), and the two form a connecting cavity (3) when closed. The bottom of the connector (1) is provided with a bottom opening (4) corresponding to the connecting cavity (3). The bottom opening (4) is connected to the connecting cavity (3). The connector (1) is also provided with a terminal block (5). Part of the terminal block (5) is located inside the connecting cavity (3), and the other part is located outside the connecting cavity (3). The connector (1) is provided with an isolation groove corresponding to the terminal block (5).

2. The wiring protection device for an air conditioner control box according to claim 1, characterized in that: The connector (1) is made of plastic, and the terminals (5) are metal parts and there are several of them. The terminals (5) are integrally injection molded with the connector (1). The terminals (5) are arranged linearly at intervals in the direction away from the bottom opening (4), and adjacent terminals (5) are separated by an isolation groove.

3. The wiring protection device for an air conditioner control box according to claim 2, characterized in that: The connecting seat (1) is composed of a base plate (1.1), a left side plate (1.2) and a right side plate (1.3) located on the left and right sides of the base plate (1.1), and a top plate (1.4) located on the top of the base plate (1.1). A connecting edge (1.5) is provided between the lower parts of the left side plate (1.2) and the right side plate (1.3). A bottom opening (4) is formed between the base plate (1.1), the left side plate (1.2), the right side plate (1.3), and the connecting edge (1.5). A front opening (6) is formed between the left side plate (1.2), the right side plate (1.3), the connecting edge (1.5), and the top plate (1.4). The front opening (6) is connected to the connecting cavity (3). The cover plate (2) opens or covers the front opening (6) when it is in motion.

4. The wiring protection device for an air conditioner control box according to claim 3, characterized in that: The left side plate (1.2) and the right side plate (1.3) are respectively provided with a transition part (1.6) and a snap-fit ​​part (1.7). The cover plate (2) is provided with a transition fitting part (2.1) and a snap-fit ​​part (2.2) on both sides. The cover plate (2) is rotatably mounted on the transition part (1.6) through the transition fitting part (2.1) and is snapped or separated from the snap-fit ​​part (1.7) through the snap-fit ​​part (2.2).

5. The wiring protection device for an air conditioner control box according to claim 4, characterized in that: The outer wall of the connecting edge (1.5) is provided with a protrusion (1.8), and the inner wall of the lower part of the cover plate (2) is provided with a groove (2.3). When the cover plate (2) covers the front opening (6), the left side, right side and top of the cover plate (2) rest on the left side plate (1.2), right side plate (1.3) and top plate (1.4) respectively. The cover plate (2) is in concave-convex fit with the protrusion (1.8) through the groove (2.3).

6. The wiring protection device for an air conditioner control box according to claim 5, characterized in that: A sealing element is provided between the connecting seat (1) and the cover plate (2). The left side, right side, top and groove (2.3) of the cover plate (2) are respectively sealed with the left side plate (1.2), right side plate (1.3), top plate (1.4) and protrusion (1.8) through the sealing element.

7. The wiring protection device for an air conditioner control box according to claim 4, characterized in that: The right side plate (1.3) has a fastening part (1.9) near the snap-fit ​​part (1.7), and the cover plate (2) has a fastening mating part (2.4) near the snap-fit ​​mating part (2.2). When the cover plate (2) covers the front opening (6), the fastening mating part (2.4) corresponds to the fastening part (1.9) and the two are fixedly connected by fasteners.

8. The wiring protection device for an air conditioner control box according to claim 3, characterized in that: The top plate (1.4) has a lower boss (1.10) extending toward the connecting cavity (3) and an upper boss (1.11) extending away from the connecting cavity (3). The lower boss (1.10) is located inside the connecting cavity (3), and the upper boss (1.11) is located outside the connecting cavity (3). The terminal block (5) is provided with an inner connection port (5.1) and an outer connection port (5.2). The inner connection port (5.1) is located on the lower boss (1.10) and is connected to an inner connection screw (7). The outer connection port (5.2) is located on the upper boss (1.11) and is connected to an outer connection screw (8).

9. The wiring protection device for an air conditioner control box according to claim 8, characterized in that: The upper boss (1.11) and the lower boss (1.10) are respectively provided with partition strips (1.12), and adjacent partition strips (1.12) form an isolation groove with the top plate (1.4).

10. The wiring protection device for an air conditioner control box according to claim 1, characterized in that: A bottom seal is also provided on the bottom opening (4).

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