Sensor electric appliance box and air conditioner

Abstract

The utility model discloses a sensor electric appliance box and an air conditioner. The sensor electric appliance box is fixed on an end plate of a heat exchanger; the sensor electric appliance box is of an integrated injection molding structure and comprises an upper cover, a lower box and a deformable connecting piece, and the first clamping part and the second clamping part are matched to buckle the upper cover on the lower box; the first clamping part and the second clamping part are positioned on the same A side of the upper cover and the lower box; the deformable connecting piece is located on the same side B of the upper cover and the lower box and connected with the upper cover and the lower box, and the side B is opposite to the side A. The sensor electric appliance box is of an integrated injection molding structure, the side B of the upper cover and the side B of the lower box are connected through the deformable connecting piece, the side A is clamped and buckled through the clamping structure, and the sensor electric appliance box is simple in structure, high in assembly precision, easy to align and buckle and especially suitable for being installed in a wall-mounted air conditioner indoor unit with a narrow installation space; the upper cover and the lower box of the integrated sensor electric appliance box are not easy to lose.

Description

Technical Field

[0001] The utility model belongs to the technical field of air-conditioning equipment, and particularly relates to a structural improvement of a sensor electrical box and an air conditioner equipped with the sensor electrical box. Background Art

[0002] As living standards improve, consumers' demands for quality of life are becoming increasingly stringent. This is particularly true for home air conditioners, where consumers' requirements for indoor air quality are also gradually increasing. As a result, various sensors, such as humidity sensors, temperature sensors, and formaldehyde sensors, are becoming standard features in indoor air conditioner units, particularly wall-mounted units.

[0003] In the prior art, sensors are typically installed on air conditioner indoor units by placing them inside an electrical box, which is then mounted integrally on the indoor unit. The box typically consists of a separate upper cover and lower box, which are fastened together by circumferentially arranged snap-fit ​​structures to define an internal storage space. Sensor compression and positioning structures are formed within the upper and lower boxes to securely hold the sensor within the box when closed.

[0004] However, the split sensor electrical box is complex, with the upper and lower boxes being separate components that can be easily lost. Furthermore, the small size of the electrical box makes it difficult to align the upper and lower boxes, hindering assembly efficiency. Furthermore, the sensor electrical box is typically mounted on the inner wall of the indoor unit panel, requiring a dedicated mounting structure to be designed into the panel. This complicates the panel mold design and increases costs.

[0005] The above information disclosed in this background technology is only used to increase the understanding of the background technology of this application. Therefore, it may contain information that does not constitute the prior art known to ordinary technicians in this field. Summary of the Invention

[0006] In view of the problems pointed out in the background technology, the utility model provides a sensor electrical box and an air conditioner, which have a simple structure, are easy to align and snap together, and are conducive to improving assembly efficiency.

[0007] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical solutions:

[0008] In some embodiments of the present application, a sensor electrical box is provided, wherein a connecting portion is formed on one end of the sensor electrical box for fixing the sensor electrical box to an end plate of a heat exchanger;

[0009] The sensor electrical box is an integral injection-molded structure, comprising:

[0010] An upper cover having a pressing structure formed therein, and a first clamping portion formed on an outer wall of a circumferential side plate of the upper cover;

[0011] A lower box has a support structure formed therein, the support structure cooperates with the clamping structure to position the clamping sensor, and a second clamping portion is correspondingly formed on the outer wall of the circumferential side plate of the lower box, the first clamping portion and the second clamping portion cooperate to buckle the upper cover onto the lower box; the first clamping portion and the second clamping portion are located on the same side A of the upper cover and the lower box;

[0012] A deformable connecting member is located on the same B side of the upper cover and the lower box, and connects the upper cover and the lower box, wherein the B side is opposite to the A side.

[0013] The sensor electrical box in the above technical solution has the following advantages or beneficial effects: the sensor electrical box is an integrated injection molding structure, the upper cover and the B side of the lower box are connected by a deformable connecting piece, and the A side is snap-fitted by a snap-fit ​​structure. Compared with the existing split sensor electrical box in which the upper cover and the lower box are two independent components, it has a simple structure, high assembly precision, and is easy to align and snap together. It is especially suitable for installation in the indoor unit of a wall-mounted air conditioner with a narrow installation space; and the upper cover and the lower box of the integrated sensor electrical box are not easy to lose.

[0014] In some embodiments of the present application, the upper cover and the lower box are provided with mutually cooperating positioning structures for aligning the upper cover and the lower box when buckled.

[0015] The sensor electrical box in the above technical solution has the following advantages or beneficial effects: the positioning structure can play a positioning role in the alignment of the upper cover and the lower box, further improving the assembly accuracy of the sensor electrical box, making the alignment and snapping easier to operate, and further improving the assembly efficiency of the sensor electrical box.

[0016] In some embodiments of the present application, a skirt edge is formed on the top surface of the circumferential side plate of the lower box and is arranged around the circumference thereof, and the skirt edge protrudes toward the side where the upper cover is located;

[0017] The positioning structure includes a plurality of first positioning portions arranged on the skirt along its circumference and a second positioning portion arranged inside the upper cover and matched with the first positioning portions.

[0018] The sensor electrical box in the above technical solution has the following advantages or beneficial effects: on the one hand, the skirt can not only enhance the strength of the lower box, but also provide space for the setting of the positioning structure, making the sensor electrical box structure more stable and compact.

[0019] In some embodiments of the present application, the compression structure is a plurality of compression ribs, the compression ribs are located at the intersection of the circumferential side plates and the top plate of the upper cover, and the compression ribs are integrally connected to the circumferential side plates and the top plate of the upper cover;

[0020] The support structure is a plurality of support ribs, and is located at the intersection of the circumferential side plate and the bottom plate of the lower box. The support ribs are connected to the circumferential side plate and the bottom plate of the lower box as a whole.

[0021] The sensor electrical box in the above technical solution has the following advantages or beneficial effects: since the sensor electrical box is injection molded as an integral part, by setting ribs as a clamping structure and a supporting structure, it can be injection molded as an integral part with the sensor electrical box itself, without the need for additional processing and molding, thereby improving molding efficiency; and the compression ribs are located at the intersection of the circumferential side panels and the top plate of the upper cover, and are connected as a whole with the circumferential side panels and the top plate of the upper cover; the support ribs are located at the intersection of the circumferential side panels and the bottom plate of the lower box, and are connected as a whole with the circumferential side panels and the bottom plate of the lower box, which can improve the structural strength of the upper cover and the lower box, thereby further improving the structural strength of the entire sensor electrical box.

[0022] In some embodiments of the present application, the second positioning portion is a positioning rib, which is provided in a one-to-one correspondence with the compression rib, and the positioning rib is formed on the outer side of the bottom end compression surface of the compression rib;

[0023] The first positioning portion corresponds to a positioning groove.

[0024] The sensor electrical box in the above technical solution has the following advantages or beneficial effects: by setting the second positioning portion in the positioning structure to be formed on the outside of the bottom clamping surface of the clamping rib, it can be injection molded as one piece with the clamping rib, and does not need to occupy other space inside the upper cover, which is conducive to reducing the volume of the upper cover, and then reducing the volume of the entire sensor electrical box, which is more conducive to installation in a wall-mounted machine with a narrow installation space.

[0025] In some embodiments of the present application, the circumferential outer wall of the skirt is located inside the outer wall of the circumferential side plate of the lower box to form an outer step structure on the top surface of the circumferential side plate of the lower box;

[0026] An inner step structure is formed on the inner wall of the circumferential side plate of the upper cover, and the inner step structure is overlapped with the outer step structure.

[0027] The sensor electrical box in the above technical solution has the following advantages or beneficial effects: the overlap between the inner step structure and the outer step structure can improve the sealing of the joint between the upper cover and the lower box, thereby improving the dustproof sealing of the sensor electrical box as much as possible.

[0028] In some embodiments of the present application, a reinforcement structure is formed inside the upper cover and the lower box.

[0029] The sensor electrical box in the above technical solution has the following advantages or beneficial effects: the structural strength of the upper cover and the lower box is further improved by strengthening the structure, thereby improving the structural strength of the entire sensor electrical box.

[0030] In some embodiments of the present application, the connecting portion includes an upper connecting portion formed on one end of the upper cover and a lower connecting portion formed on the same end of the lower box, and the upper connecting portion and the lower connecting portion are combined to form a sensor wiring hole.

[0031] The sensor electrical box in the above technical solution has the following advantages or beneficial effects: the connecting part is the connection part between the sensor electrical box and the heat exchanger end plate of the air conditioner indoor unit when it is installed. By dividing the connecting part into an upper connecting part on the upper cover and a lower connecting part on the lower box, during installation, the upper cover and the lower box can be connected to the heat exchanger end plate through the upper connecting part and the lower connecting part, thereby improving the connection reliability and preventing the upper cover from being accidentally opened.

[0032] In some embodiments of the present application, a through air circulation portion is formed on the upper cover.

[0033] The sensor electrical box in the above technical solution has the following advantages or beneficial effects: the air circulation portion allows the ambient air flow to smoothly enter the electrical box, making it easier for the internal sensor to perform detection.

[0034] In some embodiments of the present application, an air conditioner is further provided, comprising:

[0035] a wall-mounted indoor unit including a heat exchanger;

[0036] The sensor electrical box is the above-mentioned sensor electrical box, wherein the connecting portion extends in a direction away from the sensor electrical box, the bottom surface of the connecting portion is in contact with the side wall of the end plate of the heat exchanger, and the bottom surface of the connecting portion is lower than the bottom surface of the lower box, so that a gap exists between the sensor electrical box and the fins of the heat exchanger;

[0037] The humidity sensor is arranged in the sensor electrical box.

[0038] The air conditioner in the above technical solution has the following advantages or beneficial effects: the sensor electrical box is installed on the end plate of the heat exchanger and can be installed using the existing holes on the end plate without changing the air conditioner mold structure, which is conducive to reducing costs; there is a gap between the sensor electrical box and the fins of the heat exchanger, which can avoid damage to the fins of the heat exchanger and ensure normal air circulation on the heat exchanger, thereby avoiding affecting the heat exchange effect of the heat exchanger.

[0039] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0041] Figure 1 illustratively showing a perspective view of a sensor electrical box in a closed state according to some embodiments;

[0042] Figure 2 illustratively showing a perspective view of a sensor electrical box in a closed state according to some embodiments;

[0043] Figure 3 illustratively showing a perspective view of a sensor electrical box in an open state according to some embodiments;

[0044] Figure 4 for Figure 3 A-direction front view;

[0045] Figure 5 illustratively showing a perspective view of an open state of a sensor electrical box in which a humidity sensor is installed according to some embodiments;

[0046] Figure 6 illustratively showing a perspective view of an upper cover of a sensor electrical box according to some embodiments;

[0047] Figure 7 illustratively showing a perspective view of a lower box of a sensor electrical box according to some embodiments;

[0048] Figure 8 illustratively showing a perspective view of the lower box of the sensor electrical box from another perspective according to some embodiments;

[0049] Figure 9 illustratively shows a schematic diagram of a three-dimensional structure of an air conditioner from one perspective according to some embodiments;

[0050] Figure 10 illustratively shows a schematic diagram of a three-dimensional structure of an air conditioner from another perspective according to some embodiments;

[0051] Figure 11 for Figure 10 Enlarged view of part B.

[0052] Reference numerals:

[0053] 1. Sensor electrical box; 10. Connecting part; 11. Upper connecting part; 12. Lower connecting part; 13. Screw connection hole; 14. Positioning protrusion; 15. Positioning protrusion; 20. Upper cover; 21. Compression rib; 22. Snap ring; 23. First air circulation part; 24. Second air circulation part; 25. Positioning rib; 26. Inner step structure; 27. Upper cover reinforcement rib; 30. Lower box; 31. Support rib; 32. Buckle; 33. Skirt; 34. Positioning groove; 35. Lower box reinforcement rib; 37. Outer step structure; 40. Deformable connector; 50. Sensor wiring hole;

[0054] 2. Humidity sensor;

[0055] 3. Wall-mounted indoor unit; 3.1. Heat exchanger; 3.11. Heat exchange tube; 3.12. Fin; 3.13. End plate; 3.131. End plate body; 3.132. End plate sidewall; 3.133. Mounting hole;

[0056] 4. Gap. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0058] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0059] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0060] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0061] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0062] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will recognize the application of other processes and / or the use of other materials.

[0063] In this application, the air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation to cool or heat the indoor space.

[0064] Low-temperature, low-pressure refrigerant enters the compressor, which compresses it into high-temperature, high-pressure refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, releasing heat into the surrounding environment through the condensation process.

[0065] The expansion valve expands the high-temperature, high-pressure liquid refrigerant condensed in the condenser to a lower-pressure liquid. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the low-temperature, low-pressure refrigerant gas to the compressor. The evaporator achieves cooling by utilizing the latent heat of evaporation to exchange heat with the material being cooled. Throughout this cycle, the air conditioner regulates the temperature of the indoor space.

[0066] The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

[0067] The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger functions as a condenser, the air conditioner functions as a heater in heating mode, and when the indoor heat exchanger functions as an evaporator, the air conditioner functions as a cooler in cooling mode.

[0068] As consumers' demands for a higher quality of life continue to rise, their expectations for indoor air quality are also gradually increasing. Various sensors are gradually becoming standard features in air conditioners. For example, ambient temperature sensors can monitor the indoor environment in real time, enabling the air conditioner to adjust in real time and maintain stable operation. Humidity sensors can facilitate temperature and humidity balance control, improving user comfort.

[0069] In some embodiments of the present application, reference is made to Figures 9 to 11 , provides an air conditioner, including a wall-mounted indoor unit 3, a sensor electrical box 1 and a humidity sensor 2.

[0070] The wall-mounted indoor unit 3 includes a heat exchanger 3.1. The heat exchanger 3.1 is a tube-fin heat exchanger comprising a plurality of heat exchange tubes 3.11, a plurality of fins 3.12, and two oppositely disposed end plates 3.13. The two end plates 3.13 are located at opposite ends of the heat exchanger 3.1 in the longitudinal direction. The plurality of heat exchange tubes 3.11 are passed through the heat exchange fins 3.12 and mounted on the end plates 3.13. The plurality of heat exchange tubes 3.11 are connected end to end in sequence to form a heat exchange tube circuit 3.11.

[0071] The end plate 3.13 includes an end plate main body 3.131 facing the end surface of the heat exchanger and an end plate side wall 3.132 in contact with the circumferential side surface of the heat exchanger 3.1. The end plate side wall 3.132 is provided with a mounting hole 3.133.

[0072] The sensor electrical box 1 is used to accommodate and protect the humidity sensor 2. A connecting portion 10 is formed on one end of the sensor electrical box 1, and the entire sensor electrical box 1 is fixed to the end plate 3.13 of the heat exchanger 3.1 through the connecting portion 10.

[0073] The connecting portion 10 extends from one end of the sensor electrical box 1 in a direction away from the sensor electrical box 1 into a wing-ear shape. The bottom surface of the connecting portion 10 is in contact with the end plate side wall 3.132 of the heat exchanger 3.1. The sensor electrical box 1 is located above the fin 3.12 of the heat exchanger 3.1. The bottom surface of the connecting portion 10 is lower than the bottom surface of the lower box 30, that is, the connecting portion 10 protrudes downward more than the lower box 30, so that there is a gap 4 between the installed sensor electrical box 1 and the fin 3.12 of the heat exchanger 3.1. Figure 11 shown.

[0074] Figures 9 to 11 In the description, only one sensor electrical box 1 is provided and fixed on one of the end plates 3.13 of the heat exchanger 3.1. The number of sensor electrical boxes 1 is not specifically limited.

[0075] The sensor electrical box 1 is installed on the end plate 3.13 of the heat exchanger 3.1, and can be installed using the existing holes on the end plate 3.13 without changing the air conditioner mold structure, which is beneficial to reducing costs; there is a gap 4 between the sensor electrical box 1 and the fins 3.12 of the heat exchanger 3.1, which can avoid damaging the fins 3.12 of the heat exchanger 3.1 and ensure normal air circulation on the heat exchanger 3.1, thereby avoiding affecting the heat exchange effect of the heat exchanger 3.1.

[0076] The humidity sensor 2 is provided in the sensor electrical box 1 and is used to detect the humidity of the indoor environment, thereby facilitating the air conditioner to control the temperature and humidity balance and improve the user's physical comfort.

[0077] In some embodiments of the present application, reference is made to Figures 1 to 8 The sensor electrical box 1 is an integral injection-molded structure, including an upper cover 20, a lower box 30 and a deformable connecting member 40 in the middle.

[0078] The upper cover 20 is located above the lower box 30 . The lower side of the upper cover 20 is open. A compression structure is formed inside the upper cover 20 . A first clamping portion is formed on the outer wall of the circumferential side plate of the upper cover 20 .

[0079] The upper side of the lower box 30 is open, and a support structure is formed inside it. The support structure cooperates with the compression structure of the upper cover 20 to position and clamp the humidity sensor 2, so that the humidity sensor 2 is firmly placed in the sensor electrical box 1 and does not move. A second clamping portion is correspondingly formed on the outer wall of the circumferential side plate of the lower box 30. The first clamping portion and the second clamping portion cooperate to snap the upper cover 20 onto the lower box 30, so that the lower opening of the upper cover 20 aligns with the upper opening of the lower box 30 to achieve the closure of the sensor electrical box 1. The first clamping portion and the second clamping portion are located on the same side A of the upper cover 20 and the lower box 30, that is, the first clamping portion is located on the side A of the upper cover 20, and the second clamping portion is located on the side A of the lower box 30. The A side of the upper cover 20 and the A side of the lower box 30 are the same side.

[0080] The deformable connector 40 is located between the upper cover 20 and the lower box 30, and is located on the same side B of the upper cover 20 and the lower box 30. The deformable connector 40 connects the upper cover 20 and the lower box 30, and the side B is opposite to the side A. That is, the side A of the upper cover 20 and the lower box 30 are engaged by the first and second engaging portions, and the opposite side B is connected as a whole by the deformable connector 40. The upper cover 20 and the lower box 30 are closed and opened by the flexible deformation of the deformable connector 40. Figure 1 and Figure 2 In closed state, Figure 3 、 Figure 4 、 Figure 5 is in the open state.

[0081] The sensor electrical box 1 is an integrated injection molding structure, in which the B sides of the upper cover 20 and the lower box 30 are connected by a deformable connecting piece 40, and the A sides are snap-fitted by a snap-fit ​​structure. Compared with the split sensor electrical box in the existing related technology in which the upper cover 20 and the lower box 30 are two independent components, the sensor electrical box in some embodiments of the present application has a simple structure and high assembly precision. It is only necessary to fold the upper cover 20 relative to the lower box 30 under the deformation action of the deformable connecting piece 40, and then use the first snap-fit ​​part and the second snap-fit ​​part to snap-fit, which is easy to align and snap together, and is conducive to the miniaturized design of the electrical box. After closing, the size can be, for example, 63.6mm*26.4mm*23.7mm (length*width*height), which is particularly suitable for installation in a wall-mounted air conditioner indoor unit with a small installation space; and the integrated sensor electrical box 1, the upper cover 20 and the lower box 30 are not easy to lose.

[0082] In some embodiments of the present application, the first clamping portion is a clamping ring 22, and the second clamping portion is a buckle 32. Of course, they can also be other clamping structures, and no specific limitation is made here.

[0083] As for the deformable connecting part 40, it is a connecting rib that is integrally injection-molded with the upper cover 20 and the lower box 30. The plastic material itself has the ability to elastically deform while moving. During the closing and opening process of the upper cover 20 and the lower box 30, it can elastically deform accordingly to facilitate the closing and opening of the upper cover 20 and the lower box 30.

[0084] The deformable connecting member 40 is relatively long, slightly shorter than the length of the sensor electrical box 1 , and extends from one end to the other end of the sensor electrical box 1 to improve connection reliability.

[0085] The cross section of the deformable connecting member 40 may be an arc-shaped structure, such as Figure 4 As shown, to provide a space for its elastic deformation. The arc is set in the following direction: when the cover is opened, the arc opening faces upward.

[0086] The deformable connecting member 40 has a thin wall thickness, which may be between 0.1 mm and 1 mm, to ensure its reliable elastic deformation capability.

[0087] In some embodiments of the present application, a through air circulation portion is formed on the upper cover 20 to allow ambient air flow to smoothly enter the electrical box, facilitating detection by the internal humidity sensor 2 .

[0088] In some embodiments of the present application, air circulation parts are provided at multiple locations on the upper cover 20, specifically, multiple first air circulation parts 23 are provided on the top plate of the upper cover 20 and are arranged opposite to the internal humidity sensor 2, and second air circulation parts 24 are provided on the circumferential side panels of the upper cover 20.

[0089] During detection, the gas to be detected entering through the first air circulation part 23 is discharged from the second air circulation part 24 after being detected by the humidity sensor 2, thereby preventing the detected gas from affecting the detection of the newly-input gas and ensuring the detection sensitivity.

[0090] In some embodiments of the present application, the upper cover 20 and the lower box 30 are provided with mutually cooperating positioning structures for guiding the upper cover 20 and the lower box 30 to align when buckled.

[0091] The positioning structure can play a positioning role in the alignment of the upper cover 20 and the lower box 30, further improving the assembly accuracy of the sensor electrical box 1, making the alignment and snapping of the upper cover 20 and the lower box 30 easier to operate, and further improving the assembly efficiency of the sensor electrical box 1.

[0092] In some embodiments of the present application, Figure 3 、 Figure 5 and Figure 7 As shown, a skirt 33 is formed on the top surface of the circumferential side plate of the lower box 30 and is arranged around the circumference thereof. The skirt 33 protrudes toward the side where the upper cover 20 is located.

[0093] The positioning structure includes a plurality of first positioning portions arranged along the circumference of the skirt 33 and a plurality of second positioning portions provided inside the upper cover 20 , wherein the second positioning portions correspond to the first positioning portions on a one-to-one basis.

[0094] On one hand, the skirt 33 can not only enhance the strength of the lower box 30, but also provide space for the arrangement of the positioning structure, making the sensor electrical box 1 more stable and compact.

[0095] In some embodiments of the present application, the first positioning portion can be a positioning protrusion, and the second positioning portion corresponds to a positioning groove. The positioning protrusion and the positioning groove can be matched with a certain taper to guide the upper cover 20 and the lower box 30 to automatically align when the upper cover 20 and the lower box 30 are buckled together, thereby improving the matching accuracy.

[0096] In some embodiments of the present application, Figure 3 、 Figure 5 、 Figure 6 and Figure 7 As shown, the compression structure in the upper cover 20 is a plurality of compression ribs 21, which are located at the intersection of the circumferential side plates and the top plate of the upper cover 20, and the compression ribs 21 are connected to the circumferential side plates and the top plate of the upper cover 20 as a whole.

[0097] Similarly, the supporting structure is a plurality of supporting ribs 31 , which are located at the intersection of the circumferential side panels and the bottom panel of the lower box 30 . The supporting ribs 31 are integrally connected to the circumferential side panels and the bottom panel of the lower box 30 .

[0098] That is, a plurality of compression ribs 21 are arranged inside the upper cover 20 near the circumferential edge, the top ends of which are formed as one piece with the top plate of the upper cover 20, and the side walls on the outside are connected as one piece with the inner walls of the circumferential side plates of the upper cover 20, so that the compression ribs 21 are more stable; a plurality of support ribs 31 are arranged inside the lower box 30 near the circumferential edge, the bottom ends of which are formed as one piece with the bottom plate of the lower box 30, and the side walls on the outside are connected as one piece with the inner walls of the circumferential side plates of the lower box 30, so that the support ribs 31 are more stable.

[0099] The height of the compression rib 21 is smaller than the height of the circumferential side plate of the upper cover 20, and the height of the support rib 31 is smaller than the height of the circumferential side plate of the lower box 30, so that when the sensor electrical box 1 is in the closed state, there is space for placing the sensor between the compression rib 21 and the support rib 31. The top surface of the humidity sensor 2 rests on the compression rib 21, and the bottom surface rests on the support rib 31. Under the downward compression force of the compression rib 21 and the upward supporting force of the support rib 31, the humidity sensor 2 can be firmly placed in the box.

[0100] Since the sensor electrical box 1 is injection molded as an integral part, by setting ribs as a clamping structure and a supporting structure, it can be injection molded as an integral part with the sensor electrical box 1 itself, without the need for additional processing and molding, thereby improving molding efficiency; and the compression ribs 21 are located at the intersection of the circumferential side panels and the top plate of the upper cover 20, and are connected as a whole with the circumferential side panels and the top plate of the upper cover 20, and the support ribs 31 are located at the intersection of the circumferential side panels and the bottom plate of the lower box 30, and are connected as a whole with the circumferential side panels and the bottom plate of the lower box 30, which can improve the structural strength of the upper cover 20 and the lower box 30, thereby further improving the structural strength of the entire sensor electrical box 1.

[0101] In some embodiments of the present application, Figure 3 、 Figure 5 、 Figure 6 and Figure 7 As shown, the second positioning portion is a positioning rib 25 , which is arranged in a one-to-one correspondence with the compression rib 21 , and the positioning rib 25 is formed on the outer side of the bottom compression surface of the compression rib 21 ; the first positioning portion corresponds to the positioning groove 34 .

[0102] Specifically, the positioning rib 25 and the clamping rib 21 are an integrated structure, which is equivalent to forming a sheet-like rib on the outer side of the bottom clamping surface of each clamping rib 21, so that the bottom end of the clamping rib 21 is stepped; the position of the skirt 33 is higher than the supporting rib 31, so that when the sensor electrical box 1 is in the closed state, the insertion and positioning cooperation of the positioning rib 25 and the positioning groove 34 will not interfere with the cooperation between the clamping rib 21 and the supporting rib 31, and the humidity sensor 2 is placed firmly on the premise of ensuring that the upper cover 20 and the lower box 30 are reliably fastened and positioned.

[0103] And by setting the second positioning portion in the positioning structure to be formed on the outside of the bottom clamping surface of the clamping rib 21, it can be injection molded as a whole with the clamping rib 21, and does not need to occupy other space inside the upper cover 20, which is conducive to reducing the volume of the upper cover 20, and then reducing the volume of the entire sensor electrical box 1, which is more conducive to installation in a wall-mounted machine with a narrow installation space.

[0104] The positioning groove 34 is a tapered groove with a narrow bottom portion of the upper shell, so as to guide the positioning rib 25 during buckling.

[0105] In some embodiments of the present application, the circumferential outer wall of the skirt 33 is located on the inner side of the outer wall of the circumferential side panel of the lower box 30 to form an outer step structure 37 on the top surface of the circumferential side panel of the lower box 30; an inner step structure 26 is formed on the inner wall of the circumferential side panel of the upper cover 20, and the inner step structure 26 overlaps with the outer step structure 37.

[0106] Specifically, the skirt 33 is arranged on the top surface of the circumferential side plate of the lower box 30 along the circumference of the circumferential side plate. The thickness of the skirt 33 is less than the thickness of the circumferential side plate of the lower box 30. The inner side surface thereof is flush with the inner side surface of the circumferential side plate of the lower box 30, and the outer side surface thereof is located on the inner side of the outer wall of the circumferential side plate of the lower box 30, thereby forming a step structure toward the circumferential outer side of the lower box 30. For the sake of distinction, it is called the outer step structure 37.

[0107] A platform is formed on the inner wall of the circumferential side panel of the upper cover 20. The platform is positioned higher than the bottom surface of the circumferential side panel of the upper cover 20, thereby forming a stepped structure on the inner side of the circumferential side panel of the upper cover 20. For ease of distinction, it is referred to as the inner step structure 26. When the sensor electrical box 1 is closed, the overlapping cooperation of the inner step structure 26 and the outer step structure 37 can improve the sealing performance of the matching parts of the sensor electrical box 1 around the circumference, thereby maximizing the dustproof sealing performance of the sensor electrical box 1. At the same time, when matched, the inner step structure 26 and the outer step structure 37 abut against each other, which can limit the buckling of the upper cover 20 and the lower box 30.

[0108] In some embodiments of the present application, a reinforcement structure is formed inside the upper cover 20 and the lower box 30 to further enhance the structural strength of the upper cover 20 and the lower box 30, thereby improving the structural strength of the entire sensor electrical box 1.

[0109] Specifically, if Figure 3 、 Figure 5 、 Figure 6 and Figure 7 As shown, the reinforcement structure is a rib, which is integrally injection molded with the upper cover 20 and lower box 30. The upper cover reinforcement rib 27 can be integrated with the compression rib 21 to further improve strength. Similarly, the lower box reinforcement rib 35 can be integrated with the support rib 31 to further improve strength.

[0110] For the connection part 10 of the sensor electrical box 1, as shown in FIG. Figures 1 to 3 、 Figures 5 to 8 As shown, the connecting portion 10 includes an upper connecting portion 11 and a lower connecting portion 12. The upper connecting portion 11 is formed on one end of the upper cover 20, and the lower connecting portion 12 is formed on the same end of the lower box 30. The upper connecting portion 11 and the lower connecting portion 12 are combined to form a sensor wiring hole 50 to facilitate wiring.

[0111] In some embodiments of the present application, the connecting portion 10 is connected to the end plate 3.13 of the heat exchanger 3.1 by screws, and the upper connecting portion 11 and the lower connecting portion 12 are provided with screw connecting holes 13 aligned with each other. The screw connecting holes 13 are aligned with the mounting holes 3.133 reserved on the end plate 3.13 of the heat exchanger 3.1 and are fastened with screws.

[0112] In some embodiments of the present application, the screw connection holes 13 of the upper connection portion 11 and / or the lower connection portion 12 are provided with positioning structures, such as Figure 3 As shown, a circle of positioning protrusions 14 is provided around the lower surface of the screw connection holes 13 on the upper connection part 11. When fastened, the positioning protrusions 14 are adapted to be embedded in the screw connection holes 13 on the lower connection part 12 to achieve positioning, thereby ensuring the alignment of the upper connection part 11 and the lower connection part 12, and further ensuring the alignment and fastening of the upper cover 20 and the lower box 30.

[0113] By dividing the connecting portion 10 into an upper connecting portion 11 on the upper cover 20 and a lower connecting portion 12 on the lower box 30, during installation, the upper cover 20 and the lower box 30 can be connected to the end plate 3.13 of the heat exchanger 3.1 through the upper connecting portion 11 and the lower connecting portion 12, thereby improving the connection reliability and preventing the upper cover 20 from being accidentally opened.

[0114] In some embodiments of the present application, a positioning protrusion 15 is formed on the bottom surface of the lower connecting portion 12, which protrudes below the bottom surface of the lower box 30. The positioning protrusion 15 is linear. When the sensor electrical box 1 is installed on the end plate 3.13 of the heat exchanger 3.1, the positioning protrusion 15 abuts against the edge of the side wall of the end plate 3.13. Figure 11 As shown, the sensor electrical box 1 is preliminarily positioned, and the screw connection holes 13 on the connecting portion 10 are aligned with the mounting holes 3.133 on the end plate side wall 3.132 and then fastened with screws.

[0115] In some embodiments of the present application, the sensor may also be other types of sensors, such as a temperature sensor, a formaldehyde sensor, etc., which are not specifically limited here.

[0116] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0117] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to them. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this utility model should be included in the scope of protection of the present utility model. Therefore, the scope of protection of the present utility model should be based on the scope of protection of the claims.

Claims

1. A sensor electrical box, characterized in that: A connecting portion is formed on one end of the sensor electrical box for fixing the sensor electrical box on the end plate of the heat exchanger; The sensor electrical box is an integral injection-molded structure, comprising: An upper cover having a pressing structure formed therein, and a first clamping portion formed on an outer wall of a circumferential side plate of the upper cover; A lower box has a support structure formed therein, the support structure cooperates with the clamping structure to position the clamping sensor, and a second clamping portion is correspondingly formed on the outer wall of the circumferential side plate of the lower box, the first clamping portion and the second clamping portion cooperate to buckle the upper cover onto the lower box; the first clamping portion and the second clamping portion are located on the same side A of the upper cover and the lower box; A deformable connecting member is located on the same B side of the upper cover and the lower box, and connects the upper cover and the lower box, wherein the B side is opposite to the A side.

2. The sensor electrical box according to claim 1, characterized in that: The upper cover and the lower box are provided with mutually cooperating positioning structures for aligning the upper cover and the lower box when buckled.

3. The sensor electrical box according to claim 2, characterized in that: The circumferential side plate of the lower box is formed on the top surface thereof with a skirt disposed around the circumference thereof, the skirt protruding toward the side where the upper cover is located; The positioning structure includes a plurality of first positioning portions arranged on the skirt along its circumference and a second positioning portion arranged inside the upper cover and matched with the first positioning portions.

4. The sensor electrical box according to claim 3, characterized in that: The compression structure is a plurality of compression ribs, the compression ribs are located at the intersection of the circumferential side plates and the top plate of the upper cover, and the compression ribs are connected to the circumferential side plates and the top plate of the upper cover as a whole; The support structure is a plurality of support ribs, and is located at the intersection of the circumferential side plate and the bottom plate of the lower box. The support ribs are connected to the circumferential side plate and the bottom plate of the lower box as a whole.

5. The sensor electrical box according to claim 4, characterized in that: The second positioning portion is a positioning rib, which is provided in a one-to-one correspondence with the pressing rib, and the positioning rib is formed on the outer side of the bottom end pressing surface of the pressing rib; The first positioning portion corresponds to a positioning groove.

6. The sensor electrical box according to claim 3, characterized in that: The circumferential outer wall of the skirt is located inside the outer wall of the circumferential side plate of the lower box to form an outer step structure on the top surface of the circumferential side plate of the lower box; An inner step structure is formed on the inner wall of the circumferential side plate of the upper cover, and the inner step structure is overlapped with the outer step structure.

7. The sensor electrical box according to claim 1, characterized in that: Reinforcement structures are formed inside the upper cover and the lower box.

8. The sensor electrical box according to claim 1, characterized in that: The connecting portion includes an upper connecting portion formed on one end of the upper cover and a lower connecting portion formed on the same end of the lower box. The upper connecting portion and the lower connecting portion are aligned to form a sensor wiring hole.

9. The sensor electrical box according to claim 1, characterized in that: A through air circulation portion is formed on the upper cover.

10. An air conditioner, characterized in that: include: a wall-mounted indoor unit including a heat exchanger; A sensor electrical box according to any one of claims 1 to 9, wherein the connecting portion extends in a direction away from the sensor electrical box, the bottom surface of the connecting portion is in contact with the side wall of the end plate of the heat exchanger, and the bottom surface of the connecting portion is lower than the bottom surface of the lower box, so that a gap exists between the sensor electrical box and the fins of the heat exchanger; The humidity sensor is arranged in the sensor electrical box.

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