An electric control box assembly and air conditioner having the same

Abstract

The present invention provides an electric control box assembly and an air conditioner having the same, wherein the electric control box assembly includes a circuit box and a junction box, the circuit box and the junction box being fixedly connected, a circuit board being disposed in the circuit box, a junction box being disposed in the junction box, the circuit box including an outer plate, a detachable cover of the outer plate being disposed at an opening of the circuit box, and the junction box including an upper cover, a detachable cover of the upper cover being disposed at the opening of the junction box. The present invention, by providing the detachable upper cover and the outer plate, ensures that the maintenance of the junction box and the circuit board is not affected by each other, especially when repairing the circuit board, provides more ample operating space, eliminates the need for disassembly and installation of the junction box, greatly saves time for circuit board repair, and avoids the risk of damage to the junction box to a certain extent. At the same time, the first box body and the outer plate are made of metal, and the provision of a fireproof plate greatly improves the fireproof performance of the electric control box.

Description

Technical Field

[0001] The present invention relates to the field of air conditioners, and in particular to an electric control box assembly and an air conditioner having the same. Background Art

[0002] With the development of social economy, air conditioning has become an important part of people's office and life. Air conditioning is used to regulate indoor air and keep the indoor air in the most suitable state for people. For example, in the summer when the indoor temperature is high, low-temperature air is blown into the room to cool it, while in the winter, warm air is blown into the room to heat it.

[0003] Air conditioners in the prior art typically require an electrical control box to control the operation of various electrical components. Because the electrical control box is crucial to the normal operation of the air conditioner, it requires high maintenance and protection. The electrical control box generally includes a terminal block and a circuit board. The circuit board is used to house the electrical components, and the terminal block is provided with wiring terminals. One end of the wiring terminals connects to the circuit board, and the other end connects to various air conditioner components to control their operation. The applicant has conducted in-depth research on electrical control boxes for prior art air conditioners and found that the installation space is relatively limited. The electrical control box housing in existing air conditioners is typically integral and closed by an upper cover. Opening the upper cover only allows access to the terminal block for maintenance. However, repairing the circuit board requires first removing the terminal block. Even if the circuit board is not faulty, this removal and installation process is time-consuming and can easily damage the circuit board. Furthermore, since the circuit board and the terminal block are located in the same space, if the circuit board catches fire due to the high heat generated by the electrical components, the terminal block and related circuits can easily be burned, causing serious damage. In light of this, the present application is filed. Summary of the Invention

[0004] The problem solved by the present invention is that, in the prior art, it is inconvenient to inspect and repair the circuit board in the electric control box of the air conditioner, and the electric components are prone to cause serious losses when catching fire due to high heat generation.

[0005] In order to solve the above problems, the present invention provides an electric control box assembly and an air conditioner having the same. By fixedly connecting the circuit box and the junction box, the outer panel of the circuit box can be removed and opened, and the upper cover of the junction box can be removed and opened, so that the junction board and the circuit board can be inspected separately. At the same time, the first box body, the outer panel and the fireproof plate of the circuit box are set to metal materials, which can effectively control the damage caused by fire in the circuit box due to excessive temperature. Then, through the contact or connection between the three, all metal parts are grounded.

[0006] The electric control box assembly disclosed in the present invention includes a circuit box and a junction box, the circuit box and the junction box are fixedly connected, a circuit board is arranged in the circuit box, a junction box is arranged in the junction box, the circuit box includes an outer plate, a detachable cover of the outer plate is arranged at the opening of the circuit box, and the junction box includes an upper cover, a detachable cover of the upper cover is arranged at the opening of the junction box.

[0007] By setting up the detachable outer panel and upper cover, when the electrical control box needs to inspect the wiring board, the upper cover can be opened to operate. When the electrical control box needs to inspect the circuit board, the outer panel can be opened to operate. The inspection between each other is not affected. Opening the outer panel to inspect the circuit board can provide more sufficient operating space, and also eliminates the steps of disassembling and installing the wiring board, which greatly saves the time of circuit board inspection and avoids the risk of damage to the wiring board to a certain extent.

[0008] Furthermore, the circuit box includes a first box body, and the first box body is detachably connected to the outer plate.

[0009] The first box body can be a plurality of panels fixedly connected or formed in one piece. The detachable setting of the outer panel can complete the maintenance of the circuit board without interfering with the terminal board, saving maintenance time and reducing the risk of damaging the terminal board when removing and installing it.

[0010] Furthermore, a limiting portion is provided on the outer plate, and a limiting portion is provided on the first box body, and the limiting portion and the limiting portion are connected to limit the installation of the outer plate.

[0011] The limiting part and the limiting part can be connected by means of snap-on, plug-in or screw-on connection. Specifically, the limiting part can be a convex plate, and the limiting part can be a socket. The convex plate is inserted into the socket for installation limitation, so that the outer plate can be quickly limited when the electric control box is assembled or the circuit board is repaired, thereby completing its fixation and saving assembly time.

[0012] Furthermore, a first connecting portion is provided on the outer plate, and a second connecting portion is provided on the first box body, and the first connecting portion is fixedly connected to the second connecting portion.

[0013] The fixed connection can be a snap connection, a hanging connection or a screw connection. The first connecting portion and the second connecting portion are used to fix the outer plate after limiting the position, thereby ensuring the reliability of the outer plate and the first box body after assembly.

[0014] Furthermore, the first connecting portion and the second connecting portion are pressed together and fixedly connected by screws.

[0015] The joining surface of the first connecting portion and the second connecting portion can be enlarged by pressing the two together, and tight contact can be ensured by tightening the screws, thereby ensuring the reliability of the connection between the two.

[0016] Furthermore, the junction box includes a second box body, a junction board is provided in the second box body, and a fireproof board is provided on the second box body, and the fireproof board is used to separate the junction board from the circuit board and prevent fire.

[0017] The fireproof board can be set on the outside or inside of the second box body. Specifically, when the fireproof board is set on the outside of the second box body, the terminal block is directly set on the second box body. When the fireproof board is set on the inside of the second box body, the terminal block is set on the second box body through the fireproof board. The fireproof board is used to support the terminal block on the one hand and isolate the circuit box and the terminal block on the other hand, thereby playing a role in isolating the fire of the circuit board. Secondly, if the upper cover is provided with a metal plate, the fireproof board can be set to metal material to facilitate the grounding setting of the metal plate in the upper cover.

[0018] Furthermore, the first box body, the outer plate, the first connecting part, the second connecting part and the fireproof plate are all made of metal.

[0019] There are a large number of electrical components inside the circuit board, which are prone to heat up during operation and have a certain risk of fire. Circuit failure or poor connection are also prone to fire. Most of the overall structure of the air conditioner is made of plastic, and some structures are even made of flammable materials such as foam. Therefore, the electrical control box needs to have certain fire-proof properties. Using a metal shell can more effectively control the fire inside the electrical control box.

[0020] Furthermore, the electric control box assembly also includes a grounding plate, which is fixedly connected to the first box body and the fireproof plate.

[0021] In electrical equipment, all metal parts need to be grounded to prevent accidents caused by leakage. The grounding plate can be set between the first box body and the fireproof board, so as to save the space it occupies. With the first box body and the fireproof board as the base, it is relatively easy to connect all metal parts in the electrical control box, thereby achieving grounding of all metal parts. Since the outer plate is a detachable device, it is not easy to set the grounding when it is a metal part. Setting the first connecting part and the second connecting part to metal material helps to connect them, so that it has a tightening effect on the one hand and can easily achieve reliable grounding of the outer plate on the other hand.

[0022] Furthermore, an insulating lining is provided inside the first box body, and the insulating lining is used to set a circuit board.

[0023] Since the first box body is made of metal, the circuit board cannot be directly installed. Providing an insulating lining can separate the circuit board from the first box body to avoid contact between the two and the occurrence of a short circuit.

[0024] An air conditioner comprises the electric control box assembly as described above.

[0025] The advantages of the air conditioner and the above-mentioned electric control box over the prior art are the same and will not be described in detail here.

[0026] Compared with the prior art, the electric control box assembly and the air conditioner having the same described in the present invention have the following advantages: the present invention has a detachable upper cover and outer panel, and when the electric control box needs to inspect the terminal board, the upper cover can be opened to operate, and when the electric control box needs to inspect the circuit board, the outer panel can be opened to operate, and the inspection between each other is not affected. Opening the outer panel to inspect the circuit board can provide more sufficient operating space, and also eliminates the steps of disassembling and installing the terminal board, greatly saving the time of circuit board inspection, and avoiding the risk of damage to the terminal board to a certain extent. At the same time, the first box body and the outer panel are set to metal material, and the fireproof panel is set, which greatly improves the fireproof performance of the electric control box. In addition, through the setting of the fireproof panel, the circuit board and the terminal board are isolated to a certain extent, further reducing the hazards caused by the fire of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of the electrical box assembly according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the exploded structure of the electrical box assembly according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the electric control box assembly according to an embodiment of the present invention with the upper cover opened;

[0030] Figure 4 This is a schematic structural diagram of the electric control box assembly according to an embodiment of the present invention with the outer panel opened;

[0031] Figure 5 This is a structural diagram of the electric control box assembly according to an embodiment of the present invention when the upper cover and the outer plate are opened at the same time.

[0032] Figure 6 This is a schematic diagram of the exploded structure of the circuit box according to an embodiment of the present invention;

[0033] Figure 7 This is a schematic structural diagram of the outer plate according to an embodiment of the present invention;

[0034] Figure 8This is a schematic diagram of the exploded structure of the junction box according to an embodiment of the present invention.

[0035] Description of reference numerals:

[0036] 1-circuit box; 2-junction box; 3-circuit board; 4-junction board; 5-outer plate; 501-limiting part; 502-first connecting part; 5021-first screw hole; 503-crimping plate; 6-upper cover; 7-first box body; 701-limiting part; 702-second connecting part; 7021-second screw hole; 703-first grounding plate; 8-insulating lining; 9-fireproof board; 901-second grounding plate; 10-grounding plate; 1001-first grounding hole; 1002-second grounding hole; 1003-third grounding hole; 11-second box body. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments described are only some embodiments of the present invention, rather than all embodiments. The specific embodiments described herein are merely for explanation of the present invention and are not intended to limit the present invention.

[0038] An electric control box assembly and an air conditioner having the same according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0039] Example 1

[0040] This embodiment provides an electric control box assembly, such as Figure 1-8 As shown, the electric control box assembly includes a circuit box 1 and a junction box 2, and the circuit box 1 and the junction box 2 are fixedly connected. A circuit board 3 is arranged in the circuit box 1, and a junction board 4 is arranged in the junction box 2. The circuit box 1 includes an outer plate 5, and a detachable cover of the outer plate 5 is arranged at the opening of the circuit box 1. The junction box 2 includes an upper cover 6, and a detachable cover of the upper cover 6 is arranged at the opening of the junction box 2. Through the arrangement of the detachable outer plate 5 and the upper cover 6, when the electric control box needs to inspect the junction board 4, the upper cover 6 can be opened for operation. When the electric control box needs to inspect the circuit board 3, the outer plate 5 can be opened for operation, and the inspection between each other is not affected. Opening the outer plate 5 to inspect the circuit board 3 can provide more sufficient operating space, and also eliminates the steps of disassembling and installing the junction board 4, greatly saving the time for inspecting the circuit board 3, and avoiding the risk of damage to the junction board 4 to a certain extent.

[0041] For the structure of the circuit box 1, Figure 4-7As shown, the circuit box 1 includes a first box body 7, which is detachably connected to the outer plate 5. The first box body 7 can be a plurality of plates fixedly connected, or can be integrally formed. The detachable setting of the outer plate 5 can complete the maintenance of the circuit board 3 without interfering with the terminal board 4, saving maintenance time and reducing the risk of damaging the terminal board 4 when removing and installing it.

[0042] For the assembly of the first box body 7 and the outer panel 5, a limiting portion 501 is provided on the outer panel 5, and a limiting portion 701 is provided on the first box body 7. The limiting portion 501 and the limiting portion 701 are connected for limiting the outer panel 5 during installation. The limiting portion 501 and the limiting portion 701 can be connected in a snap-on, plug-in or screw-on manner. Specifically, the limiting portion 501 can be a convex plate, and the limiting portion 701 can be a socket. The convex plate is inserted into the socket for installation limitation, so that the outer panel 5 can be quickly limited when the electric control box is assembled or the circuit board 3 is repaired, thereby completing its fixation. Compared with the prior art, the steps of disassembling and installing the terminal block 4 are omitted, saving a lot of time. There can be one or more limiting portions 501 and limiting portions 701 respectively.

[0043] As for the fixation between the outer panel 5 and the first box body 7, a first connecting portion 502 is provided on the outer panel 5, and a second connecting portion 702 is provided on the first box body 7. The first connecting portion 502 and the second connecting portion 702 are fixedly connected. The fixed connection can be a snap connection, a hanging connection or a screw connection. The first connecting portion 502 and the second connecting portion 702 are used to fix the outer panel 5 after limiting the position, thereby ensuring the reliability of the outer panel 5 and the first box body 7 after assembly.

[0044] Preferably, the first connecting part 502 and the second connecting part 702 are pressed together and fixedly connected by screws. In this embodiment, the first connecting part 502 and the second connecting part 702 are both plate-shaped. After the two are pressed together, they are fixed with screws through a first screw hole 5021 set on the first connecting part 502 and a second screw hole 7021 set on the second connecting part 702. By pressing the two together, the joint surface of the first connecting part 502 and the second connecting part 702 can be expanded, and by tightening with screws, their close contact can be ensured to ensure the reliability of the connection between the two.

[0045] The junction box 2 includes a second box body 11, a junction board 4 is provided in the second box body 11, and a fireproof board 9 is provided on the second box body 11. The fireproof board 9 is used to separate the junction board 4 from the circuit board 3 and prevent fire. Since a large number of electrical components are provided in the circuit board 3, these electrical components generate a lot of heat during operation and are prone to fire due to problems such as short circuit or poor contact. In order to prevent the circuit board 3 from catching fire and damaging the junction board 4, a fireproof board 9 is provided between the two. The fireproof board 9 can be provided on the outside or inside of the second box body 11. Specifically, When the fireproof board 9 is arranged on the outside of the second box body 11, the terminal block 4 is directly arranged on the second box body 11. When the fireproof board 9 is arranged on the inside of the second box body 11, the terminal block 4 is arranged on the second box body 11 through the fireproof board 9. The fireproof board 9 is used to support the terminal block 4 on the one hand, and isolate the circuit box 1 and the terminal block 4 on the other hand, thereby playing a role in isolating the fire of the circuit board 3. Secondly, if the upper cover 6 is provided with a metal plate, the fireproof board 9 can be set to a metal material to facilitate the grounding setting of the metal plate in the upper cover 6.

[0046] As for the overall fire protection of the circuit box 1, the first box body 7, the outer plate 5, the first connecting part 502, the second connecting part 702, and the fireproof plate 9 are all made of metal. There are a large number of electrical components inside the circuit board 3, which are prone to heat up during operation and have a certain risk of fire. In addition, circuit failure or poor connection are also prone to fire. Most of the overall structure of the air conditioner is made of plastic, and some structures are even made of flammable materials such as foam. Therefore, the electrical control box needs to have certain fire protection performance. The use of a metal shell can more effectively control the fire in the electrical control box. The first box body 7, the outer plate 5 and the fireproof plate 9 form a closed space to cover the circuit board 3, which can minimize the damage caused by the fire caused by the circuit board 3.

[0047] The electric control box assembly also includes a grounding plate 10, which is fixedly connected to the first box body 7 and the fireproof plate 9. The grounding plate 10 is fixed to the first box body 7 and the fireproof plate 9 by metal clips or screws. In electrical equipment, all metal parts need to be grounded to prevent accidents caused by leakage. The grounding plate 10 can be set between the first box body 7 and the fireproof plate 9, thereby saving the space it occupies. With the first box body 7 and the fireproof plate 9 as the base, it is relatively easy to connect all metal parts in the electric control box, thereby achieving grounding of all metal parts. Since the outer plate 5 is a detachable device, when it is a metal part, grounding is not easy to set. Setting the first connecting part 502 and the second connecting part 702 to metal material helps to connect them, so that it has a fastening function on the one hand. Effect, on the other hand, it is easy to achieve reliable grounding of the outer plate 5. As a preferred embodiment, a first grounding plate 703 is protruded from the first box body 7, and the first grounding plate 703 is screwed to the first grounding hole 1001 on the grounding plate 10. The fireproof plate 9 protrudes a second grounding plate 901 toward the grounding plate 10, and the second grounding plate 901 is screwed to the second grounding hole 1002 on the grounding plate 10. A third grounding hole 1003 is also provided on the grounding plate 10, and the third grounding hole 1003 is connected to a grounding wire to complete the grounding of the electric control box assembly. The grounding of the electric control box assembly described in the present invention is not limited to the components described in the present invention. Any metal parts in the electric control box can be grounded by contact or connection with each other.

[0048] For the first box body 7 made of metal, an insulating lining 8 is provided on the inner side of the first box body 7, and the insulating lining 8 is used to set the circuit board 3. Since the first box body 7 is made of metal, the circuit board 3 cannot be directly installed. The insulating lining 8 can separate the circuit board 3 from the first box body 7 to avoid contact between the two and a short circuit. As a preferred embodiment, a crimping plate 503 is also provided on the outer plate 5. The crimping plate 503 is used to be crimped onto the insulating lining 8 during installation. On the one hand, it is used for positioning after limiting during installation, and on the other hand, it is used to press the insulating lining to prevent it from moving. There can be one or more crimping plates 503.

[0049] The connection method between the upper cover 6 and the junction box 2 can be screw connection or clip connection. Since it is no different from the conventional connection method, its specific structure and effect are not described here in detail.

[0050] Example 2

[0051] This embodiment provides an electric control box assembly, the structure of which is similar to the structure described in Example 1, except that the second box body 11 does not exist, and the junction box 2 is composed of a junction board 4 and a fireproof board 9, an isolating plastic and a first box body 7. The junction board 4, the fireproof board 9 and the isolating plastic are arranged in the first box body 7, and the plastic partition is arranged between the fireproof board 9 and the circuit board 3. The plastic partition can eliminate the risk of short circuit between the fireproof board 9 and the circuit board 3. The upper cover 6 can be detachably connected to the first box body 7 in a conventional manner, and the outer plate 5 can be detachably connected to the first box body 7 in the manner described in Example 1. Compared with Example 1, this arrangement can make the structure of the electric control box assembly more compact, which is beneficial to saving internal space of the air conditioner.

[0052] Example 3

[0053] This embodiment discloses an air conditioner, which includes an electric control box assembly as described in Example 1 or Example 2, so that when the electric control box needs to inspect the terminal block 4, the operation can be carried out by opening the front panel and the upper cover 6. When the electric control box needs to inspect the circuit board 3, the operation can be carried out by opening the side end cover and the outer panel 5. The inspection between each other is not affected. Opening the outer panel 5 to inspect the circuit board 3 can provide more sufficient operating space, and also eliminates the steps of disassembling and installing the terminal block 4, greatly saving the time for inspecting the circuit board 3, and also avoiding the risk of damage to the terminal block 4 to a certain extent. At the same time, the first box body 7 and the outer panel 5 are set to metal material, and the setting of the fireproof plate 9 greatly improves the fireproof performance of the electric control box.

[0054] It should be noted that all terms used in the present invention to indicate direction and position, such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", "outer", "top", "lower", "tail end", "head end", "center", etc., are only used to explain the relative positional relationship and connection status between various components in a specific state. They are only for the convenience of describing the present invention, and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention. In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0055] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. An electric control box assembly, characterized in that: The invention comprises a circuit box (1) and a junction box (2), wherein the circuit box (1) and the junction box (2) are fixedly connected, a circuit board (3) is arranged in the circuit box (1), a junction board (4) is arranged in the junction box (2), the circuit box (1) comprises an outer plate (5), a detachable cover of the outer plate (5) is arranged at the opening of the circuit box (1), the junction box (2) comprises an upper cover (6), a detachable cover of the upper cover (6) is arranged at the opening of the junction box (2); the junction box (2) comprises a second box body (11), a junction board (4) is arranged in the second box body (11), A fireproof plate (9) is provided on the second box body (11), and the fireproof plate (9) is used to separate the wiring board (4) and the circuit board (3) and prevent fire; the circuit box (1) includes a first box body (7), and the first box body (7) is detachably connected to the outer plate (5); a first connecting portion (502) is provided on the outer plate (5), and a second connecting portion (702) is provided on the first box body (7), and the first connecting portion (502) and the second connecting portion (702) are fixedly connected; the first connecting portion (502) and the second connecting portion (702) are fixedly connected by screws after being pressed together; the first connecting portion (502) and the second connecting portion (702) are fixedly connected by screws; A box body (7), an outer plate (5), a first connecting portion (502), a second connecting portion (702), and a fireproof plate (9) are all made of metal so that the metal plate in the upper cover (6) is grounded; the electric control box assembly also includes a grounding plate (10), and the grounding plate (10) is fixedly connected to the first box body (7) and the fireproof plate (9); the grounding plate (10) is arranged between the first box body (7) and the fireproof plate (9), and a first grounding plate (703) protrudes from the first box body (7), and the first grounding plate (703) is screwed to the first grounding hole (1001) on the grounding plate (10). The fireproof plate (9) protrudes a second grounding plate (901) toward the grounding plate (10), and the second grounding plate (901) is screwed to the second grounding hole (1002) on the grounding plate (10). The grounding plate (10) is also provided with a third grounding hole (1003), and the third grounding hole (1003) is connected to a grounding wire; an insulating lining (8) is provided on the inner side of the first box body (7), and the insulating lining (8) is used to set the circuit board (3); a pressing plate (503) is also provided on the outer plate (5), and the pressing plate (503) is pressed on the insulating lining (8) during installation.

2. An electric control box assembly according to claim 1, characterized in that: A limiting portion (501) is provided on the outer plate (5), and a limiting portion (701) is provided on the first box body (7); the limiting portion (501) and the limiting portion (701) are connected to limit the installation of the outer plate (5).

3. An air conditioner, characterized in that: The air conditioner includes the electric control box assembly according to any one of claims 1 to 2.

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