Air conditioner electric control box and air conditioner

Abstract

The utility model provides an air conditioner electric control box and an air conditioner, relates to the technical field of air conditioners, and aims to solve the problem that condensation risks exist on the rear wall of the electric control box. The air conditioner electric control box comprises a box body, the box body is provided with a rear wall plate, a first part of the rear wall plate is opposite to a refrigerant pipe of the indoor heat exchanger, the box body is further provided with a first baffle, the first baffle is located between the refrigerant pipe and the first part, and a first cavity is formed between the first baffle and the first part; the first cavity is isolated from a box inner cavity located in the box body. The condensation risk of the rear wall of the electric control box can be obviously reduced or even eliminated.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioner technical field, specifically, relate to a kind of air conditioner electric control box and air conditioner. BACKGROUND

[0002] In the wall-mounted air conditioner indoor unit, electric control box is usually arranged at the end of the internal space of the wall-mounted air conditioner indoor unit, such as left end or right end. However, with such arrangement, the overall length of the wall-mounted air conditioner indoor unit is increased, which on one hand leads to an increase in the use of materials for the base, middle frame and panel of the air conditioner, thereby increasing the cost of the air conditioner, and on the other hand, also leads to difficulty in placing the air conditioner in the indoor space.

[0003] Therefore, some existing wall-mounted air conditioner indoor units arrange the electric control box in front of the fan motor, i.e. close to the side of the main indoor space. When the air conditioner is in cooling mode, the refrigerant in the refrigerant pipe is in a flowing state, and the refrigerant pipe can continuously cool the air around it. Since the local back wall of the electric control box is arranged opposite to the refrigerant pipe of the indoor heat exchanger and is close to the refrigerant pipe, the temperature of the back wall of the electric control box is relatively low. When the air in the electric control box encounters this part of the back wall, condensation is likely to occur. SUMMARY

[0004] The first aspect of the utility model aims to provide an air conditioner electric control box to solve the technical problem of condensation risk on the back wall of the existing electric control box.

[0005] The air conditioner electric control box provided by the first aspect of the utility model comprises a box body, the box body has a back wall plate, a first local part of the back wall plate is arranged opposite to the refrigerant pipe of the indoor heat exchanger, the box body is further provided with a first baffle, the first baffle is located between the refrigerant pipe and the first local part, a first cavity is formed between the first baffle and the first local part, and the first cavity is isolated from the box cavity located in the box body.

[0006] The air conditioner electric control box provided by the utility model has the following beneficial effects:

[0007] By arranging the first baffle on the box body and locating it between the first local part of the back wall plate and the refrigerant pipe, after the air outside the electric control box exchanges heat with the refrigerant pipe, the air flowing through the outside of the back wall plate is blocked from contacting the back wall plate by the first baffle, so that the temperature difference between the two sides of the back wall plate is reduced, the possibility of the hot air in the electric control box contacting the back wall plate and condensing is greatly reduced or even eliminated, the reliability of the electric control box is improved, and the service life of the electric control box is increased.

[0008] Moreover, the first cavity is formed between the first baffle and the rear wall plate, and air is stored in the first cavity. Even if air with a lower temperature passes from the side of the first baffle away from the rear wall plate, that is, passes from the rear side of the first baffle and exchanges heat with the first baffle, because of the existence of the first cavity, heat on the rear wall plate needs to pass through the rear surface of the rear wall plate and the air in the first cavity, the air in the first cavity and the front surface of the first baffle, and the rear surface of the first baffle and the flowing air, a total of three times of heat exchange between different materials, and heat exchange on multiple interfaces between different materials, which helps to significantly reduce the speed of heat exchange, so as to avoid excessive temperature drop of the rear wall plate, and reduce the possibility of condensation on the inner side of the rear wall plate.

[0009] In an optional technical solution, the upper edge of the first baffle is connected with the rear wall plate through an upper extension, and the lower edge of the first baffle is connected with the rear wall plate through a lower extension, and the upper extension and the lower extension are configured to close the first cavity in the vertical direction.

[0010] In this way, the air flow behind the first baffle can be blocked to drive the air flow in the first cavity, and the air flow speed in the first cavity can be significantly reduced. After the air flow is significantly suppressed, the heat exchange path from the rear wall plate to the first baffle is mainly that the air in the local area of the first cavity close to the rear wall plate absorbs heat from the rear wall plate and then exchanges heat with the air in the local area close to the first baffle. Because air itself is a poor conductor of heat, the heat exchange speed of such heat conduction is significantly reduced, and then the temperature drop speed and temperature drop range of the rear wall plate can be limited, so that condensation of the rear wall plate of the box body can be effectively prevented.

[0011] In an optional technical solution, a first connecting rib plate is arranged between the first baffle and the rear wall plate, the first connecting rib plate connects the first baffle and the rear wall plate, and the first connecting rib plate separates the first cavity and the box cavity.

[0012] The first connecting rib plate is arranged to separate the first cavity and the box cavity, the first connecting rib plate can be used to block one end of the first cavity, so that the first cavity can only have an opening at one end of the indoor heat exchanger, and the heat preservation capacity of the first cavity is improved. Moreover, compared with the solution that the first baffle is directly connected with the rear wall plate without the first connecting rib plate, the sharpness of the deepest part of the first cavity, that is, the region farthest from the opening of the first cavity, can be reduced, so that the injection mold can be more easily inserted, and the manufacturing process performance is improved.

[0013] In an optional technical solution, the indoor heat exchanger comprises a heat exchanger body, the refrigerant pipe comprises a U-shaped pipe, the U-shaped pipe comprises a connecting section and a curved section, the connecting section is connected to the heat exchanger body, the curved section is connected to the connecting section, a projection length of a first spacing between the first connecting rib plate and the heat exchanger body in a left-right direction is greater than a second spacing between the curved section and the heat exchanger body, and the first cavity is open toward the heat exchanger body.

[0014] In the U-shaped pipe of the indoor heat exchanger, the connecting section has a relatively high arrangement density in the circumferential direction of the indoor heat exchanger, so that the temperature of air passing through this part of the U-shaped pipe is lower. The first spacing between the first connecting rib plate and the heat exchanger body is set in this way, so that the first cavity is arranged in the first baffle and the rear wall plate in the part of the area where the first baffle contacts the air with a lower temperature, thereby preventing the first local part of the rear wall plate from having a too low temperature. The first cavity is arranged to be open toward the heat exchanger body, so that even if condensation is generated on the side of the first cavity of the first plate body, the condensation can be discharged from the opening of the first cavity and cannot accumulate in the first cavity.

[0015] In an optional technical solution, the box body comprises a box cover and a box seat, the box cover is closed on the box seat in a closing direction, and the first connecting rib plate is located in the middle part of the rear wall plate in the closing direction.

[0016] The first connecting rib plate is arranged in the middle part of the rear wall plate in the closing direction, so that the depth of the area with a relatively large depth behind the rear wall plate can be reduced, thereby facilitating the deepening of the mold during the injection molding process and ensuring the injection molding effect.

[0017] In an optional technical solution, a second connecting rib plate extending in a horizontal direction is further arranged in the first cavity, and the second connecting rib plate connects the first local part and the first baffle.

[0018] The second connecting rib plate is arranged to not only strengthen the rigidity of the first baffle, but also connect the first local part and the first baffle, so as to partially block the air convection in the first cavity caused by the temperature rise of the air after absorbing heat from the lower part of the rear wall plate, thereby further reducing the flowability of the air, making the air more close to static, and further reducing the heat transfer capacity from the rear wall plate to the first baffle in the first cavity.

[0019] In an optional technical solution, the box body comprises a box seat and a box cover, the circuit board is installed in the box seat, and the rear wall plate is arranged on the box seat; the box seat is further provided with a second baffle, the first baffle is located between the second baffle and the heat exchanger body, the second baffle is arranged corresponding to the second part of the rear wall plate, a second cavity is formed between the second baffle and the second part, and the second cavity is communicated with the box cavity.

[0020] By arranging the second baffle opposite to the second part of the rear wall plate, the heat transfer from the circuit board to the second baffle can be blocked by the second part, so that the temperature of the second cavity between the second baffle and the first baffle is lower than that of the remaining positions in the box cavity. Although the other side of the second baffle is the outside of the box body, cold air may flow here, but the temperature of the air flowing through the rear side of the second baffle is not so low, because the air flowing through the curved section of the U-shaped tube is in contact with the curved section, and the arrangement density of the curved section is smaller than that of the connecting section. In addition, the temperature in the second cavity is also lower than that of other positions in the box cavity. Therefore, the temperature difference between the front and rear sides of the second baffle and the front and rear sides of the second part is not large, and condensation is not easily generated on both sides.

[0021] In an optional technical solution, the second cavity is further provided with a third connecting rib plate extending in the horizontal direction, and the third connecting rib plate connects the second part and the second baffle.

[0022] By arranging the third connecting rib plate, the stiffness of the second baffle is strengthened by the third connecting rib plate, and the third connecting rib plate connects the second part and the second baffle, so as to partially block the air convection generated by the temperature rise of the air in the second cavity after absorbing heat from the lower part of the rear wall plate, thereby further reducing the flowability of the air, making the air more static, and further reducing the heat transfer capacity from the rear wall plate to the second baffle in the second cavity.

[0023] In an optional technical solution, the sum of the lengths of the first baffle and the second baffle in the left-right direction is greater than the length of the rear wall plate in the left-right direction.

[0024] By arranging the first baffle and the second baffle in this way, the local area of the box seat behind the second baffle is further away from the refrigerant pipe, reducing the influence of external cold air on this part of the box seat. Moreover, by arranging in this way, the opening area of the second cavity can be increased, so that the air in the box cavity can enter the second cavity more or exchange heat with the air in the second cavity, thereby increasing the temperature of the air in the second cavity, so that the second part, the second cavity and the second baffle can form a more effective temperature gradient to prevent the temperature difference between the two sides of the second part from being too large to cause condensation.

[0025] The second aspect of the utility model discloses an air conditioner to solve the technical problem of the condensation risk of the rear wall of the electric control box.

[0026] The air conditioner provided by the second aspect of the utility model comprises an air conditioner outdoor unit and a wall-mounted air conditioner indoor unit, the wall-mounted air conditioner indoor unit comprises a base, an indoor heat exchanger and the air conditioner electric control box of any one of the preceding aspects, and the indoor heat exchanger and the air conditioner electric control box are both installed on the base.

[0027] By arranging the air conditioner electric control box in the air conditioner, the air conditioner has all the advantages of the air conditioner electric control box, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the background art, the drawings needed to be used in the description of the embodiments or the background art will be briefly introduced as follows, and obviously, the drawings in the following description are only embodiments of the utility model, and other drawings can also be obtained according to the provided drawings without creative labor for those skilled in the art.

[0029] Figure 1 The structural schematic view of the air conditioner electric control box provided by the first embodiment of the utility model is applied to a wall-mounted air conditioner indoor unit.

[0030] Figure 2 The three-dimensional sectional view of the air conditioner electric control box provided by the first embodiment of the utility model is applied to a wall-mounted air conditioner indoor unit.

[0031] Figure 3 The structural schematic view of the air conditioner electric control box provided by the first embodiment of the utility model is applied to a wall-mounted air conditioner indoor unit.

[0032] Figure 4 The structural schematic view of the air conditioner electric control box provided by the first embodiment of the utility model is applied to a wall-mounted air conditioner indoor unit.

[0033] Figure 5 The structural schematic view of the air conditioner electric control box provided by the first embodiment of the utility model is applied to a wall-mounted air conditioner indoor unit.

[0034] Figure 6 The left view of the box seat in the air conditioner electric control box provided by the first embodiment of the utility model.

[0035] Figure 7 The three-dimensional sectional view of the box seat in the air conditioner electric control box provided by the first embodiment of the utility model.

[0036] Figure 8 The three-dimensional sectional view of the box seat in the air conditioner electric control box provided by the first embodiment of the utility model.

[0037] Figure 9 The utility model embodiment one provides the box seat in air conditioner electric control box from still another direction observes the stereogram section view of the box seat in air conditioner electric control box provided by the utility model embodiment one;

[0038] Figure 10 The utility model embodiment one provides the box seat in air conditioner electric control box from still another direction observes the stereogram section view of the box seat in air conditioner electric control box provided by the utility model embodiment one;

[0039] Figure 11 The utility model embodiment one provides the cross section view of air conditioner electric control box for wall -hanging type air conditioner indoor unit of air conditioner electric control box provided by the utility model embodiment one is applied;

[0040] Figure 12 The utility model embodiment one provides the cross section view of air conditioner electric control box for wall -hanging type air conditioner indoor unit of air conditioner electric control box provided by the utility model embodiment one is applied;

[0041] Figure 13 The utility model embodiment one provides the right view of the box seat in air conditioner electric control box;

[0042] Figure 14 The utility model embodiment one provides the structure schematic drawing of the box seat in air conditioner electric control box from another direction observation.

[0043] Mark explanation:

[0044] 100-box body;101-box seat;102-box cover;103-box inner chamber;110-back wall board;111-first partial;112-second partial;121-first baffle;122-first cavity;123-upward extension;124-downward extension;125-first connecting rib board;126-second connecting rib board;130-circuit board;141-second baffle;142-second cavity;143-third connecting rib board;

[0045] 200-indoor heat exchanger;210-refrigerant pipe;211-U-shaped pipe;2111-connection section;2112-bent section;220-heat exchanger body;

[0046] 300-base. Specific implementation

[0047] In order to make the above -mentioned purpose, feature and advantage of the utility model more obvious and easy to understand, the specific embodiment of the utility model is explained in detail below with accompanying drawings. It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0048] If not otherwise specified, the directions in the present application are defined as follows: front refers to the side of the wall-mounted air conditioner indoor unit facing the main indoor space, and the back refers to the side of the wall-mounted air conditioner indoor unit facing the wall on which it is hung. The bottom refers to the side of the wall-mounted air conditioner indoor unit facing the ground. The top refers to the side of the wall-mounted air conditioner indoor unit facing the roof. The left and right can be defined based on the front, back and bottom, i.e. when an observer faces the wall on which the wall-mounted air conditioner indoor unit is installed, the left hand direction of the observer is the left side, and the right hand direction of the observer is the right side. In addition, the inner side and the outer side are defined based on a component in the shape of a cavity or a box or a cylinder, the side of the cavity or the box or the cylinder facing the inner space thereof is the inner side, and the outer side is the side of the cavity or the box facing the outer space thereof.

[0049] Embodiment one:

[0050] Figure 1 A structure schematic diagram of the air conditioner electric control box provided by the embodiment one of the present application applied to a wall-mounted air conditioner indoor unit is shown in Fig. 1. Figure 2 A perspective sectional view of the air conditioner electric control box provided by the embodiment one of the present application applied to a wall-mounted air conditioner indoor unit is shown in Fig. 2. Figure 3 A structure schematic diagram of the air conditioner electric control box provided by the embodiment one of the present application is shown in Fig. 3. Figure 4 A structure schematic diagram of the air conditioner electric control box provided by the embodiment one of the present application viewed from another direction is shown in Fig. 4. Figure 5 A structure schematic diagram of the box seat in the air conditioner electric control box provided by the embodiment one of the present application is shown in Fig. 5. Figures 1-5 As shown in Fig. 5, the air conditioner electric control box provided by the embodiment one of the present application comprises a box body 100, and the box body 100 has a back wall plate 110. The first local part 111 of the back wall plate 110 is arranged opposite to the refrigerant pipe 210 of the indoor heat exchanger 200. The box body 100 is further provided with a first baffle 121, and the first baffle 121 is located between the refrigerant pipe 210 and the first local part 111. A first cavity 122 is formed between the first baffle 121 and the first local part 111, and the first cavity 122 is isolated from the box inner cavity 103 located in the box body 100.

[0051] By arranging the first baffle 121 on the box body 100 and locating it between the first local part 111 of the back wall plate 110 and the refrigerant pipe 210, after the air outside the electric control box exchanges heat with the refrigerant pipe 210, the air flowing through the outside of the back wall plate 110 is blocked from contacting the back wall plate 110 by the first baffle 121, and does not directly contact the back wall plate 110, thereby reducing the temperature difference between the two sides of the back wall plate 110, greatly reducing or even eliminating the possibility of the relatively hot air in the electric control box contacting the back wall plate 110 and condensing, improving the reliability of the electric control box and increasing the service life of the electric control box.

[0052] Moreover, the first cavity 122 is formed between the first baffle 121 and the rear wall plate 110, and the first cavity 122 contains air, even if the air with lower temperature passes from the side of the first baffle 121 away from the rear wall plate 110, i.e. from the rear side of the first baffle 121, and heat transfer occurs with the first baffle 121, but due to the existence of the first cavity 122, the heat on the rear wall plate 110 needs to pass through the rear surface of the rear wall plate 110, the air in the first cavity 122, the air in the first cavity 122 and the front surface of the first baffle 121, and the rear surface of the first baffle 121 and the flowing air, a total of three times of heat transfer between different materials, and heat transfer on multiple interfaces between different materials, which helps to significantly reduce the speed of heat transfer, so as to avoid excessive temperature drop of the rear wall plate 110, thereby reducing the possibility of condensation on the inner side of the rear wall plate 110.

[0053] The box body 100 comprises a box seat 101 and a box cover 102, and the box cover 102 is covered on the box seat 101 along the left-right direction. Specifically, in the embodiment, the box cover 102 is covered on the box seat 101 from right to left. In the embodiment, the air conditioner control box is arranged in the right area of the wall-mounted air conditioner indoor unit, and in the box body 100, the box seat 101 faces the indoor heat exchanger 200. Then, the first baffle 121 is arranged in the lower left area of the rear side wall of the box seat 101. The first cavity 122 is located between the rear wall plate 110 of the box seat 101 and the first baffle 121. Of course, if in the box body 100, the box cover 102 faces the indoor heat exchanger 200, and the box seat 101 is away from the indoor heat exchanger 200, then the first baffle 121 can also be arranged in the lower part of the rear side wall of the box cover 102.

[0054] Figure 6 A left view of the box seat in the air conditioner control box according to the first embodiment of the utility model; Figure 7 A perspective sectional view of the box seat in the air conditioner control box according to the first embodiment of the utility model; Figure 7 The sectional plane is a vertical plane perpendicular to the left-right direction; as shown in Figures 3-7 Optionally, the upper edge of the first baffle 121 is connected with the rear wall plate 110 through the upper extension 123, and the lower edge of the first baffle 121 is connected with the rear wall plate 110 through the lower extension 124, and the upper extension 123 and the lower extension 124 are configured to close the first cavity 122 in the vertical direction.

[0055] In this way, the air flow behind the first baffle 121 can be blocked to reduce the air flow in the first cavity 122, and the air flow speed in the first cavity 122 can be significantly reduced. After the air flow is significantly blocked, the heat transfer path from the rear wall plate 110 to the first baffle 121 is mainly that the air in the local area of the first cavity 122 close to the rear wall plate 110 absorbs heat from the rear wall plate 110 and then transfers the heat to the air in the local area close to the first baffle 121. Since the air itself is a poor conductor of heat, the heat transfer speed of such heat conduction is significantly reduced, thereby limiting the temperature drop speed and temperature drop of the rear wall plate 110, and thus effectively preventing the rear wall plate 110 of the box body 100 from condensation.

[0056] In the embodiment, the first baffle 121 can be arranged substantially parallel to the rear wall plate 110, and the relative surfaces of the two have an included angle, which is a small acute angle for facilitating mold stripping during injection molding. Further, when observing the first cavity 122 from the position of the indoor heat exchanger 200, the opening of the first cavity 122 toward the indoor heat exchanger 200 can have a substantially trapezoidal shape, and the height of the trapezoid is significantly smaller than the height of the upper base or lower base of the trapezoid, that is, the spacing between the first baffle 121 and the rear wall plate 110 in the front-rear direction is significantly smaller than the height of the corresponding area of the rear wall plate 110 located on the front side of the first cavity 122, and also significantly smaller than the height of the first baffle 121. For example, the spacing between the first baffle 121 and the rear wall plate 110, that is, the width of the first cavity 122 in the front-rear direction, can be equivalent to one-tenth of the height of the first cavity 122, or even smaller. Therefore, the opening of the first cavity 122 toward the indoor heat exchanger 200 is close to a narrow gap, and the influence of the external airflow passing through the opening of the first cavity 122 on the air in the first cavity 122 is significantly weakened, and the air flow in the first cavity 122 is lower and closer to a static state. In the first cavity 122, heat transfer from the rear wall plate 110 to the first baffle 121 is difficult to achieve through fluid flow, and the air itself is a poor conductor of heat, so the heat transfer speed from the rear wall plate 110 to the first baffle 121 in the first cavity 122 can be effectively reduced.

[0057] Figure 8 A perspective view of the box seat in the air conditioner electric control box according to the first embodiment of the present application is shown in FIG. 1A. Figure 8 The cross section is a horizontal plane. Figure 9 A perspective view of the box seat in the air conditioner electric control box according to the first embodiment of the present application is shown in FIG. 1A. Figure 10 A perspective view of the box seat in the air conditioner electric control box according to the first embodiment of the present application is shown in FIG. 1A. Figure 9 The cross section is a vertical plane perpendicular to the front-rear direction, Figure 10 The cross section is a vertical plane perpendicular to the front-rear direction, Figure 9 The cross section is a vertical plane perpendicular to the front-rear direction,Figure 10 The perspectives of observation are different. For example Figure 2 and Figures 7-10 As shown, optionally, a first connecting rib 125 is provided between the first baffle 121 and the rear wall plate 110. The first connecting rib 125 connects the first baffle 121 and the rear wall plate 110, and the first connecting rib 125 isolates the first cavity 122 and the inner cavity 103 of the box.

[0058] The first connecting rib 125 is provided to isolate the first cavity 122 from the inner cavity 103. The first connecting rib 125 can block one end of the first cavity 122, allowing the first cavity 122 to have an opening only facing the indoor heat exchanger 200, thus improving the insulation capacity of the first cavity 122. Furthermore, compared to a solution where the first baffle 121 is directly connected to the rear wall panel 110 without the first connecting rib 125, the sharpness of the deepest part of the first cavity 122 (i.e., the area furthest from the opening) can be reduced, which is more conducive to the deep insertion of the injection mold and improves manufacturing process performance.

[0059] Of course, in another implementation, the first connecting rib 125 may not be provided. For example, the first baffle 121 may extend directly from the rear side of the rear wall panel 110. Although the heat preservation function of the first cavity 122 can be basically guaranteed, the injection molding difficulty of the first cavity 122 in this form is significantly increased due to the sharp angle at its deepest point.

[0060] Figure 11 A cross-sectional view of the air conditioning control box provided in Embodiment 1 of this utility model applied to the indoor unit of a wall-mounted air conditioner; Figure 11 The cross-section is a horizontal plane. For example... Figure 2 and Figure 11 As shown, optionally, the indoor heat exchanger 200 includes a heat exchanger body 220, and the refrigerant pipe 210 includes a U-shaped pipe 211. The U-shaped pipe 211 includes a connecting section 2111 and a bending section 2112. The connecting section 2111 connects to the heat exchanger body 220; the bending section 2112 connects to the connecting section 2111; the projected length of the first distance between the first connecting rib 125 and the heat exchanger body 220 in the left-right direction is greater than the second distance between the bending section 2112 and the heat exchanger body 220; the first cavity 122 opens toward the heat exchanger body 220.

[0061] In the U-shaped tube 211 of the indoor heat exchanger 200, the connecting section 2111 is arranged at a higher density in the circumferential direction of the indoor heat exchanger 200, so that the air passing through this part of the U-shaped tube 211 has a lower temperature. The first spacing between the first connecting rib plate 125 and the heat exchanger body 220 is set in this way so that the first cavity 122 is arranged in the first baffle plate 121 and the rear wall plate 110 in the area opposite the connecting section 2111, i.e. in the part of the first baffle plate 121 that contacts the air at a lower temperature, thereby preventing the first local part 111 of the rear wall plate 110 from having a too low temperature. The first cavity 122 is arranged to open towards the heat exchanger body 220, so that even if condensation is generated on the side of the first cavity 122 of the first plate body, the condensation can be discharged from the opening of the first cavity 122 and will not accumulate in the first cavity 122.

[0062] As shown in Figure 2 and Figure 8 , optionally, the box body 100 comprises a box cover 102 and a box seat 101, the box cover 102 is hinged to the box seat 101 in the hinged direction; in the hinged direction, the first connecting rib plate 125 is located in the middle of the rear wall plate 110.

[0063] The first connecting rib plate 125 is arranged in the middle of the rear wall plate 110 in the hinged direction, which can reduce the depth of the area behind the rear wall plate 110 where the depth is larger, thereby facilitating the mold to penetrate during the injection molding process to ensure the effect of injection molding.

[0064] If the first connecting rib plate 125 is arranged on the side edge of the rear wall plate 110 away from the indoor heat exchanger 200 in the hinged direction, it will result in that the depth-width ratio of the first cavity 122 is too large, i.e. the ratio of the depth of the first cavity 122 to the spacing between the two side walls of the first cavity 122 in the front-rear direction, in other words, the ratio of the distance between the first connecting rib plate 125 and the opening of the first cavity 122 to the spacing between the first plate body and the rear wall plate 110 is too large. The first cavity 122 is a deep groove and is difficult to be injection molded. Therefore, arranging the first connecting rib plate 125 in this way is beneficial to improve the processing performance of the first cavity 122.

[0065] As shown in Figures 2-4 and Figures 6-10 , optionally, the first cavity 122 further comprises a second connecting rib plate 126 extending in the horizontal direction, and the second connecting rib plate 126 connects the first local part 111 and the first baffle plate 121.

[0066] By setting the second connecting rib plate 126, not only the rigidity of the first baffle 121 is strengthened by the second connecting rib plate 126, but also the second connecting rib plate 126 connects the first local part 111 and the first baffle 121, so that the air convection caused by the temperature rising of the air in the second cavity 142 after absorbing heat from the lower part of the rear wall plate 110 can be partially blocked, thereby further reducing the flowability of the air, so that the air is more close to static, thereby further reducing the heat transfer capacity from the rear wall plate 110 to the first baffle 121 in the second cavity 142.

[0067] Specifically, in the embodiment, the second connecting rib plate 126 is perpendicular to the first connecting rib plate 125, and three second connecting rib plates 126 can be arranged in the vertical direction. The second connecting rib plate 126 does not extend to the opening of the second cavity 142 from the first connecting rib plate 125, so that the second connecting rib plate 126 can be used to divide the deeper area in the second cavity 142 into multiple parts, so that the length of the deeper area is divided into multiple sections, and a section with a large length-width ratio is converted into four sections with a significantly reduced length-width ratio, so as to reduce the injection difficulty.

[0068] Figure 11 A sectional view of the air conditioner electric control box provided by the utility model embodiment one applied to the wall-mounted air conditioner indoor unit is provided. Figure 12 A sectional view of the air conditioner electric control box provided by the utility model embodiment one applied to the wall-mounted air conditioner indoor unit is provided. Figure 13 A right view of the box seat in the air conditioner electric control box provided by the utility model embodiment one is provided. Figure 2 And Figures 8-14 As shown in the figure, optionally, the box body 100 includes a box seat 101 and a box cover 102, the circuit board 130 is installed in the box seat 101, and the rear wall plate 110 is arranged on the box seat 101; the box seat 101 is further provided with a second baffle 141, the first baffle 121 is located between the second baffle 141 and the heat exchanger body 220, the second baffle 141 is arranged in correspondence with the second local part 112 of the rear wall plate 110, the second cavity 142 is formed between the second baffle 141 and the second local part 112, and the second cavity 142 is communicated with the box inner cavity 103.

[0069] By setting the second baffle 141 opposite to the second part 112 of the back wall plate 110, the second part 112 can be used to block the heat transfer from the circuit board 130 to the second baffle 141, so that the temperature of the second cavity 142 between the second baffle 141 and the first baffle 121 is lower than the rest of the cavity 103 in the box. Although the other side of the second baffle 141 is the outside of the box body 100, there may also be cold air flowing here, but since the air flowing through here contacts the bending section 2112 of the U-shaped tube 211, and the setting density of the bending section 2112 is smaller than that of the connecting section 2111, the temperature of the air flowing through the back side of the second baffle 141 is not so low, and the temperature in the second cavity 142 is also lower than that of the other positions in the cavity 103 in the box. Therefore, the temperature difference between the front and back sides of the second baffle 141 and the front and back sides of the second part 112 is not large, and condensation is not easily generated directly on both.

[0070] In addition, by setting the second cavity 142, compared with setting the first connecting rib plate 125 at the edge of the back wall plate 110 away from the heat exchanger, the depth of the single cavity manufactured can be reduced, thereby reducing the aspect ratio and improving the manufacturing process performance.

[0071] Specifically, in the embodiment, the air conditioning control box is located at the right side of the indoor heat exchanger 200, the first cavity 122 is located at the left side of the first connecting rib plate 125, and the second cavity 142 is located at the right side of the connecting rib plate. Similarly, the second part 112 is located at the right side of the first part 111, i.e., at the side of the first part 111 away from the indoor heat exchanger 200; and the second baffle 141 is also located at the right side of the first baffle 121, i.e., at the side of the first baffle 121 away from the indoor heat exchanger 200.

[0072] As shown in Figures 8-14 Optionally, the second cavity 142 further comprises a third connecting rib plate 143 extending in the horizontal direction, and the third connecting rib plate 143 connects the second part 112 and the second baffle 141.

[0073] By setting the third connecting rib plate 143, not only the rigidity of the second baffle 141 is strengthened by the third connecting rib plate 143, but also the third connecting rib plate 143 connects the second part 112 and the second baffle 141, so that the air convection caused by the temperature rise of the air in the second cavity 142 after absorbing heat from the lower part of the back wall plate 110 can be partially blocked, thereby further reducing the flowability of the air, making the air more static, and further reducing the heat transfer ability from the back wall plate 110 to the second baffle 141 in the second cavity 142.

[0074] Specifically, in the embodiment, the third connecting rib plate 143 is perpendicular to the second connecting rib plate 126, and two third connecting rib plates 143 can be arranged in the vertical direction. The third connecting rib plate 143 does not extend to the opening of the second cavity 142 from the second connecting rib plate 126, so that the third connecting rib plate 143 can be used to divide the deeper area in the second cavity 142 into multiple parts, so that the length of the deeper area is divided into multiple sections, and a section with a large length-width ratio is converted into three sections with a significantly reduced length-width ratio, so as to reduce the injection difficulty.

[0075] Figure 14 Figure 2 is a structural schematic diagram of the box seat in the air conditioner electric control box according to the embodiment one of the present application, viewed from another direction. As shown in Figure 2 、 Figure 8 and Figure 14 indicated, optionally, the sum of the lengths of the first baffle 121 and the second baffle 141 in the left-right direction is greater than the length of the rear wall plate 110 in the left-right direction.

[0076] By arranging the first baffle 121 and the second baffle 141 in this way, the local area of the box seat 101 after the second baffle 141 can be further away from the refrigerant pipe 210, and the influence of external cold air on this part of the box seat 101 is reduced. Moreover, by arranging in this way, the opening area of the second cavity 142 can also be increased, so that more air in the box cavity 103 can enter the second cavity 142 or exchange heat with the air in the second cavity 142, thereby increasing the temperature of the air in the second cavity 142, so that the second local area 112, the second cavity 142 and the second baffle 141 can form a more effective temperature gradient to prevent the temperature difference between the two sides of the second local area 112 from being too large to cause condensation.

[0077] Embodiment two:

[0078] The embodiment two also provides an air conditioner, which comprises the above-mentioned air conditioner outdoor unit and wall-mounted air conditioner indoor unit, and the wall-mounted air conditioner indoor unit comprises a base 300, an indoor heat exchanger 200 and the air conditioner electric control box of any one of the above-mentioned air conditioner electric control boxes.

[0079] By arranging the above-mentioned air conditioner electric control box in the air conditioner, the air conditioner has all the advantages of the above-mentioned air conditioner electric control box, which will not be repeated here.

[0080] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art, without departing from the spirit and scope of the present application, can make various changes and modifications, therefore the protection scope of the present application should be subject to the range defined by the claims.

[0081] Finally, it should be noted that, in this document, relational terms such as first and second, and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," "includes," "including" or any other variation thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0082] In the above embodiments, the orientation descriptions such as "upper", "lower" and the like are based on the figures shown.

[0083] The above description of disclosed embodiments provides enabling disclosure sufficient for one of ordinary skill in the art to practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application.

[0084] Accordingly, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air conditioner electric control box, characterized by, The box body (100) has a rear wall plate (110), a first part (111) of the rear wall plate (110) is arranged opposite to a refrigerant pipe (210) of an indoor heat exchanger (200), the box body (100) is further provided with a first baffle (121), the first baffle (121) is located between the refrigerant pipe (210) and the first part (111), a first cavity (122) is formed between the first baffle (121) and the first part (111), and the first cavity (122) is isolated from a box cavity (103) located in the box body (100).

2. The electric control box of an air conditioner according to claim 1, wherein An upper edge of the first baffle (121) is connected with the rear wall plate (110) through an upper extension (123), a lower edge of the first baffle (121) is connected with the rear wall plate (110) through a lower extension (124), and the upper extension (123) and the lower extension (124) are configured to close the first cavity (122) in the vertical direction.

3. The electric control box of an air conditioner according to claim 2, wherein A first connecting rib plate (125) is arranged between the first baffle (121) and the rear wall plate (110), the first connecting rib plate (125) connects the first baffle (121) and the rear wall plate (110), and the first connecting rib plate (125) isolates the first cavity (122) and the box cavity (103).

4. The electric control box of an air conditioner according to claim 3, wherein The indoor heat exchanger (200) comprises a heat exchanger body (220), the refrigerant pipe (210) comprises a U-shaped pipe (211), the U-shaped pipe (211) comprises a connecting section (2111) and a curved section (2112), the connecting section (2111) is connected with the heat exchanger body (220), the curved section (2112) is connected with the connecting section (2111), a projection length of a first distance between the first connecting rib plate (125) and the heat exchanger body (220) in the left-right direction is greater than a second distance between the curved section (2112) and the heat exchanger body (220), and the first cavity (122) is open to the heat exchanger body (220).

5. The air conditioner electric control box according to claim 3 or 4, characterized in that, The box body (100) comprises a box cover (102) and a box seat (101), the box cover (102) is covered on the box seat (101) in a covering direction, in the covering direction, the first connecting rib plate (125) is located in the middle part of the rear wall plate (110).

6. The air conditioner electric control box according to claim 3 or 4, characterized in that, The first cavity (122) is further provided with a second connecting rib plate (126) extending in the horizontal direction, and the second connecting rib plate (126) connects the first part (111) and the first baffle (121).

7. The electric control box of an air conditioner according to claim 4, wherein The box body (100) comprises a box seat (101) and a box cover (102), the circuit board (130) is installed in the box seat (101), and the back wall plate (110) is arranged on the box seat (101); the box seat (101) is further provided with a second baffle (141), the first baffle (121) is located between the second baffle (141) and the heat exchanger body (220), the second baffle (141) is arranged in correspondence with a second part (112) of the back wall plate (110), a second cavity (142) is formed between the second baffle (141) and the second part (112), and the second cavity (142) is communicated with the box inner cavity (103).

8. The electric control box of an air conditioner according to claim 7, wherein A third connecting rib plate (143) extending in a horizontal direction is further arranged in the second cavity (142), and the third connecting rib plate (143) connects the second part (112) and the second baffle (141).

9. The electric control box of an air conditioner according to claim 7, wherein The sum of the lengths of the first baffle (121) and the second baffle (141) in the left-right direction is greater than the length of the back wall plate (110) in the left-right direction.

10. An air conditioner characterized by comprising: The air conditioner comprises an air conditioner outdoor unit and a wall-mounted air conditioner indoor unit, the wall-mounted air conditioner indoor unit comprises a base (300), an indoor heat exchanger (200) and the air conditioner electric control box according to any one of claims 1-9, and the indoor heat exchanger (200) and the air conditioner electric control box are both installed on the base (300).

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