An electric appliance box, air conditioner

Abstract

The application provides an electric appliance box and an air conditioner. The electric appliance box comprises a box body and a blocking part. The box body has a side surface, two opposite first end surfaces and a second end surface. The side surface is connected between the first end surfaces and the second end surface. All the side surfaces of the box body are provided with heat dissipation openings. The blocking part is arranged on the side surface and opposite to the heat dissipation openings, so that the blocking part can block the heat dissipation openings. A channel is formed between the blocking part and the box body. An opening of the channel faces the second end surface. The electric appliance box can overcome the defects of poor fireproofing ability in the prior art. After the electric appliance box catches fire, the whole electric appliance device can catch fire.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical appliances, in particular to an electrical appliance box and an air conditioner. BACKGROUND

[0002] At present, in order to accelerate the 5G coverage in major cities, the number of shared base stations will be more and more, and the coverage area will be more and more wide. Accordingly, the demand for base station air conditioners and the coverage area will also increase. In some relatively remote places, due to the need for theft prevention, the compressor of the outdoor unit needs to be placed indoors. The built-in compressor is equivalent to integrating the mainboards of the indoor unit and the outdoor unit to the indoor unit. Therefore, compared with the traditional indoor unit / outdoor unit, the size of the mainboard of the indoor unit will increase, and the electronic components will also increase. When the air conditioner is running, the temperature inside the electrical appliance box will also rise faster and higher. When the temperature of the electrical appliance box is too high, it is easy to cause the failure of the components and reduce the service life of the components. In severe cases, it can also cause the components to catch fire, causing the entire electrical appliance to catch fire. Therefore, how to effectively cool the inside of the electrical appliance box is an important aspect to consider. SUMMARY

[0003] Therefore, the present application provides an electrical appliance box and an air conditioner, which can overcome the defects of poor fireproofing ability of the electrical appliance box in the prior art, and the electrical appliance box catching fire will cause the entire electrical appliance to catch fire.

[0004] To solve the above problems, the present application provides an electrical appliance box, which comprises:

[0005] The box body has a side surface, two opposite first end surfaces and second end surfaces, the side surface is connected between the first end surfaces and the second end surfaces, all the side surfaces of the box body are provided with heat dissipation openings, the blocking part is arranged on the side surface and opposite to the heat dissipation opening, so that the blocking part can block the heat dissipation opening, and a channel is formed between the blocking part and the box body, and the opening of the channel faces the second end surface.

[0006] In some embodiments, the gas inside the box body flows to the outside of the box body only through the heat dissipation openings, the air outside the box body flows from the first end surface to the second end surface, flows into the channel through the opening of the channel, and then enters the box body only through the heat dissipation openings.

[0007] In some embodiments, a filter screen is arranged on the box body, the filter screen is located at the heat dissipation opening to filter the heat dissipation opening, or the filter screen is located in the channel to filter the channel.

[0008] In some embodiments, the blocking part further comprises a plurality of connecting plates and a blocking plate, the blocking plate is connected to the box body through the plurality of connecting plates and covers the heat dissipation opening, and the blocking plate and the box body form the channel.

[0009] In some embodiments, the connecting plate and the blocking plate are integrally formed, and the connecting plate is detachably connected to the box body.

[0010] In some embodiments, the blocking plate is arranged in parallel with the plane where the heat dissipation opening is located, and the distance between the blocking plate and the box body is not less than 10 mm.

[0011] In some embodiments, the shape and size of the blocking plate are matched with the heat dissipation opening, the connecting plate and the blocking plate are arranged in perpendicular to each other and in L shape.

[0012] In some embodiments, the side of the connecting plate facing the box body is provided with at least one connecting piece, the connecting piece protrudes towards the box body, and the box body is provided with connecting holes, the connecting holes are arranged in one-to-one correspondence with the connecting pieces.

[0013] In some embodiments, the connecting piece comprises two connecting parts arranged at intervals, the side of the connecting part away from the connecting plate is provided with a clamping part, the maximum distance between the two connecting parts is not greater than the diameter of the connecting hole, and the maximum distance between the two clamping parts is greater than the diameter of the connecting hole.

[0014] In some embodiments, the side of the two clamping parts away from each other is provided with an assembly surface, the normal line of the assembly surface and the side of the connecting plate facing the box body form an included angle, and the included angle is (0-90°).

[0015] The application further provides an air conditioner comprising the electric appliance box.

[0016] The electric appliance box and the air conditioner provided by the application have the advantages that the blocking part is arranged opposite to the heat dissipation opening, the blocking part can cover the heat dissipation opening, and the channel is formed between the blocking part and the box body, so when the electric appliance box catches fire and the fire shoots out of the heat dissipation opening, the fire can be covered by the blocking part, and the fire is prevented from causing the whole electric appliance device to catch fire. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a perspective view of an electric appliance box according to an embodiment of the application;

[0018] Figure 2 FIG. 4 is a structural schematic view of a filter screen in the electric appliance box according to an embodiment of the application;

[0019] Figure 3 is a sectional view of an electric appliance box according to an embodiment of the present application;

[0020] Figure 4 is an enlarged view of a part of the electric appliance box according to an embodiment of the present application;

[0021] Figure 5 is an assembly view of the electric appliance box according to an embodiment of the present application when applied to an air conditioner.

[0022] Reference signs are indicated as follows:

[0023] 1, box body; 2, blocking part; 3, filter screen; 4, clamping part; 5, connecting part; 6, assembly surface; 7, blocking plate; 8, connecting plate. DETAILED DESCRIPTION

[0024] Reference should be made to Figures 1 to 5 shown, according to an embodiment of the present application, an electric appliance box is provided, which comprises a box body 1 and a blocking part 2, the box body 1 has a side surface, two opposite first and second end surfaces, and the side surface is connected between the first and second end surfaces, all the side surfaces of the box body 1 are provided with heat dissipation openings, the blocking part 2 is arranged on the side surface and opposite to the heat dissipation openings, so that the blocking part 2 can shield the heat dissipation openings, and a passage is formed between the blocking part 2 and the box body 1, and the opening of the passage faces the second end surface. In this technical solution, as shown in Figure 1 shown, since the blocking part 2 is arranged opposite to the heat dissipation openings at the heat dissipation openings, the blocking part 2 can shield the heat dissipation openings, and a passage is formed between the blocking part 2 and the box body 1, when a fire breaks out in the electric appliance box, the flame ejected from the heat dissipation openings can be shielded by the blocking part 2, preventing the flame from causing the entire electric appliance device to catch fire, and when normally working, the air inside the electric appliance box 1 can also exchange heat with the air outside the box body 1 through the heat dissipation openings, so as to cool the inside of the electric appliance box 1.

[0025] In some embodiments, the gas inside the box 1 only flows to the outside of the box 1 through the heat dissipation port, the air outside the box 1 flows from the first end face to the second end face, flows into the channel through the opening of the channel, and then only enters the box 1 through the heat dissipation port. In this technical solution, only one heat dissipation port is provided, and the temperature rise caused by the operation of the internal components of the electrical box provides an air outlet for heat dissipation. The active gas molecules inside the electrical box provide an air outlet for heat dissipation. The reliability is high, and the safety hidden trouble problem caused by the entry of water, dust and other impurities into the electrical box through the air inlet and outlet channel in the comparative document can be effectively avoided. The incoming air and the outgoing air can exchange heat in the channel, increasing the heat dissipation efficiency. During normal operation, the air inside the electrical box 1 can also exchange heat with the air outside the box 1 through the heat dissipation port to cool the electrical box 1. When the electrical box of the application is applied to an air conditioner, the air outlet of the air conditioner is opposite to the first end face, and the opening of the channel faces the second end face, i.e. the opening faces downward, which can prevent water in the air conditioner from flowing into the electrical box 1 through the opening of the channel to damage the electrical components. The air flow velocity is large at the air outlet position, and a negative pressure is formed. Due to the pressure difference, the air flow outside the air outlet flows through the gaps and spaces between the parts to the air outlet and is discharged to the outside. At this time, the air flow temperature at the back of the electrical box 1 is higher, and the molecular activity is also higher. The air flow flowing to the air outlet can take away heat, so that the temperature inside the electrical box 1 can be effectively reduced, and the heat dissipation effect is greatly optimized.

[0026] In some embodiments, referring to Figure 3 The filter screen 3 is provided on the box 1 and located at the heat dissipation port to filter the heat dissipation port, or the filter screen 3 is located in the channel to filter the channel. In this technical solution, the filter screen 3 can prevent mosquitoes and other insects from entering the electrical box 1 and damaging the internal components of the electrical box 1.

[0027] In some embodiments, referring to Figure 3 The blocking part 2 further includes a plurality of connecting plates 8 and a blocking plate 7. The blocking plate 7 is connected to the box 1 through the plurality of connecting plates 8 and blocks the heat dissipation port. The channel is formed between the blocking plate 7 and the box 1. Specifically, the connecting plate 8 and the blocking plate 7 are integrally formed, and the connecting plate 8 is detachably connected to the box 1. In this technical solution, the connecting plate 8 and the blocking plate 7 can be integrally formed, such as integrally injection molded or integrally stamped, which is convenient to install and has better stability and mechanical strength. The connecting plate 8 is detachably connected to the box 1, for example, the connecting plate 8 can be connected to the electrical box by screws, which is convenient for maintenance and replacement of the filter screen 3.

[0028] In some embodiments, the baffle 7 is arranged parallel to the plane where the heat dissipation port is located, and the distance between the baffle 7 and the box body 1 is not less than 10 mm. In this technical solution, the baffle 7 is arranged parallel to the plane where the heat dissipation port is located, which can not only well shield the open fire, but also reduce the cost. The distance between the baffle 7 and the box body 1 is not less than 10 mm, which ensures the flow area of the channel and effectively ensures the heat exchange efficiency of the heat dissipation port.

[0029] In some embodiments, the shape and size of the baffle 7 are matched with the heat dissipation port, and the connecting plate 8 and the baffle 7 are arranged perpendicular to each other and in an L shape. In this technical solution, the area of the baffle 7 can be larger than the area of the outlet 11, so that the effect of the baffle 7 shielding the open fire sprayed in the heat dissipation port will be better. However, from the perspective of cost saving, the size and shape of the baffle 7 are preferably matched with the heat dissipation port. The shape and size of the baffle 7 are matched with the heat dissipation port, which reduces the cost. When the open fire in the electrical appliance box 1 is sprayed, the connecting plate 8 and the baffle 7 shield the sprayed open fire, which ensures that the open fire does not burn out of the electrical appliance box 1, and meets the quality requirements of electrical appliance safety.

[0030] In some embodiments, at least one connecting piece is arranged on the side of the connecting plate 8 facing the box body 1. The connecting piece is arranged protruding towards the box body 1, and the box body 1 is provided with a connecting hole. The connecting hole is arranged one-to-one corresponding to the connecting piece. In this technical solution, the connecting plate 8 and the electrical appliance box 1 are connected through the connecting hole and the connecting piece, so that the baffle 7 can be disassembled, which is convenient for maintenance and replacement of the filter screen 3.

[0031] In some embodiments, referring to Figure 4 The connecting piece includes two spaced connecting parts 5. The side of the connecting part 5 away from the connecting plate 8 is provided with a clamping part 4. The maximum distance between the two connecting parts 5 is not greater than the diameter of the connecting hole, and the maximum distance between the two clamping parts 4 is greater than the diameter of the connecting hole. In this technical solution, the two spaced connecting parts 5 can adjust the distance between the two connecting parts 5 when they are installed into the connecting hole, which facilitates the installation of the connecting part 5. The maximum distance between the two connecting parts 5 is not greater than the diameter of the connecting hole, and the maximum distance between the two clamping parts 4 is greater than the diameter of the connecting hole. When the clamping part 4 passes through the connecting hole, the clamping part 4 can be clamped at the opening of the connecting hole.

[0032] In some embodiments, two said card parts 4 are provided with assembling surfaces 6 on opposite sides, the normal line of the assembling surface 6 and the side surface of the connecting plate 8 towards the box body 1 form an included angle (0-90°). In the technical solution, the normal line of the assembling surface 6 and the side surface of the connecting plate 8 towards the box body 1 form an included angle (0-90°), which can make the card part 4 more convenient to enter and exit the connecting hole.

[0033] The electric appliance box of the present application is shown in Figure 5 When the air conditioner is running, the temperature inside the electric appliance box 1 rises. According to the law of thermodynamics, the higher the temperature, the more active the molecular activity. At this time, since the filter screen 3 part exists inside the electric appliance box 1, the area for heat dissipation is increased, and the airflow will be discharged outside the electric appliance box 1 through the heat dissipation opening formed by the filter screen 3. The electric appliance box 1 is generally arranged below the air inlet, and the air flow velocity at the air inlet position is large, which will form a negative pressure. Due to the pressure difference, the airflow in the area outside the air inlet will flow to the air inlet through the gaps and spacings of the parts and be discharged to the outside, at this time, the temperature of the airflow at the back of the electric appliance box 1 is high, and the degree of molecular activity is also high. The airflow flows to the air inlet while carrying away heat, so that the temperature inside the electric appliance box can be effectively reduced, and the heat dissipation effect is greatly optimized.

[0034] The inside of the electric appliance box 1 is mostly electronic components, and when the heat dissipation opening is opened at the back of the electric appliance box 1 to optimize the heat dissipation effect, the sealing of the cooperating parts and the fire prevention problem caused by the failure of the components inside the electric appliance box need to be considered at the same time. The blocking part 2 is added outside the filter screen, the blocking part 2 is a fire baffle part, the blocking part 2 is connected with the electric appliance box 1 through spot welding, and unnecessary gaps caused by improper screw fixation are prevented. At the same time, the blocking part 2 should be provided in the form of three-week sealing with one side opening to ensure that the heat dissipation channel is in communication with the outside. The opening of the blocking part 2 is downward, because in the case of built-in compressor, the bottom plate of the indoor unit is a sheet metal part, when the components inside the electric appliance box 1 fail and catch fire, the blocking part 2 can effectively avoid the situation that the fire spreads in all directions, and concentrates the fire to be sprayed downward, greatly reducing the loss caused by the failure and fire. Therefore, the two corners of the blocking part 2 are preferably made by integrally forming a sheet metal part, and secondly, the two corners can be sealed by edge overlapping spot welding.

[0035] The filter screen 3 is fixed and connected with the electric appliance box 1 in a non-detachable manner, the fixed structure needs to be covered by the edge structure of the filter screen 3, and the cooperation gap caused by the cooperation structure needs to be guaranteed to avoid fire safety problems. The filter screen 3 is filled with a mesh material, which is similar to the filter screen part of a traditional indoor unit. The filter screen 3 is mostly an injection molded part, so the material of the filter screen 3 and the mesh material needs to be selected from materials with a fireproof level of ≥V0 level.

[0036] The application further provides an air conditioner comprising the electric appliance box.

[0037] The above merely describes the preferred embodiments of the present application, but should not be used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application. The above merely describes the preferred embodiments of the present application, but should not be used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An air conditioner characterized by comprising: The application relates to a heat dissipation box body and a heat dissipation cover. The box body (1) has a side surface, two opposite first end surfaces and a second end surface, the side surface is connected between the first end surfaces and the second end surface, all the side surfaces of the box body (1) are provided with heat dissipation openings, the cover (2) is arranged on the side surface and is opposite to the heat dissipation openings, so that the cover (2) can shield the heat dissipation openings, and a channel is formed between the cover (2) and the box body (1), and the opening of the channel faces the second end surface. Air in the box body (1) flows to the outside of the box body (1) only through the heat dissipation openings, air outside the box body (1) flows from the first end surface to the second end surface, flows into the channel through the opening of the channel, and then enters the box body (1) only through the heat dissipation openings; air in the box body (1) exchanges heat with air outside the box body (1) through the heat dissipation openings, the air outlet of an air conditioner is opposite to the first end surface, the channel is a single-side opening structure, and the channel only opens towards the second end surface. The cover (2) further comprises a plurality of connecting plates (8) and a cover plate (7), the cover plate (7) is connected with the box body (1) through the connecting plates (8) and shields the heat dissipation openings, and the channel is formed between the cover plate (7) and the box body (1); the cover plate (7) is arranged in parallel with the plane where the heat dissipation openings are located, and the connecting plates (8) and the cover plate (7) are arranged in perpendicular and L-shaped.

2. The air conditioner of claim 1, wherein: A filter screen (3) is arranged on the box body (1), the filter screen (3) is located at the heat dissipation openings to filter the heat dissipation openings, or the filter screen (3) is located in the channel to filter the channel.

3. The air conditioner of claim 1, wherein: The connecting plates (8) and the cover plate (7) are integrally formed, and the connecting plates (8) are detachably connected with the box body (1).

4. The air conditioner of claim 1, wherein: The distance between the cover plate (7) and the box body (1) is not less than 10 mm.

5. The air conditioner of claim 1, wherein: The shape and size of the cover plate (7) are matched with the heat dissipation openings.

6. The air conditioner of claim 1, wherein: At least one connecting piece is arranged on one side of the connecting plate (8) facing the box body (1), the connecting piece protrudes towards the box body (1), and a connecting hole is arranged on the box body (1), and the connecting hole is arranged in one-to-one correspondence with the connecting piece.

7. The air conditioner of claim 6, wherein: The connecting piece comprises two spaced connecting portions (5), a clamping portion (4) is arranged on one side of the connecting portion (5) away from the connecting plate (8), the maximum distance between the two connecting portions (5) is not greater than the diameter of the connecting hole, and the maximum distance between the two clamping portions (4) is greater than the diameter of the connecting hole.

8. The air conditioner of claim 7, wherein: Assembly surfaces (6) are arranged on the sides of the two clamping portions (4) away from each other, the normal line of the assembly surface (6) and the side surface of the connecting plate (8) facing the box body (1) form an included angle, and the included angle is (0-90 DEG).

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