Chassis and heat pump equipment

Abstract

This utility model discloses a chassis and a heat pump device. The chassis includes a chassis body with a water receiving trough. The bottom wall of the water receiving trough has a through hole, a partition plate, and a baffle. The partition plate is located in the through hole and extends along the height direction of the chassis body. The top of the partition plate is higher than the through hole. The partition plate divides the through hole to form a first drain outlet and a second drain outlet. The baffle is connected to the partition plate to form an overflow channel. The upper end of the overflow channel is the overflow outlet, and the lower end of the overflow channel is connected to the second drain outlet, so that the chassis body has the functions of drainage and overflow. The condensate collected in the water receiving trough is discharged through the first drain outlet. When the first drain outlet is blocked, the water level rises to the overflow outlet for drainage. The first and second drain outlets can be connected through the same drainage pipe, which can centrally drain the condensate and effectively reduce the risk of condensate overflowing from all sides of the chassis body. This is suitable for heat pump devices.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a chassis and heat pump equipment. Background Technology

[0002] Heat pump water heaters need to constantly exchange heat with the external environment. During operation, condensate flows into the chassis and is drained through drain holes in the chassis structure. However, when the drain holes become clogged, water leaks out from the gaps around the chassis, causing a large amount of water to flow out and making it difficult to collect and discharge the condensate into the sewer. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a chassis that can reduce the risk of condensate overflowing from all sides of the chassis and facilitates centralized drainage of condensate.

[0004] This utility model also proposes a heat pump device including the above-mentioned chassis.

[0005] According to a first aspect of the present invention, a chassis includes a chassis body. The chassis body is provided with a water receiving trough. The bottom wall of the water receiving trough is provided with a through hole, a partition plate, and a baffle plate. The partition plate is disposed in the through hole and extends along the height direction of the chassis body. The top end of the partition plate is higher than the through hole. The partition plate divides the through hole to form a first drain outlet and a second drain outlet. The baffle plate is connected to the partition plate to form an overflow channel. The top end of the overflow channel is provided with an overflow port, and the lower end of the overflow channel communicates with the second drain outlet.

[0006] The chassis according to the embodiments of this utility model has at least the following beneficial effects:

[0007] A water collection trough is installed on the chassis body. The bottom wall of the water collection trough has through holes, partition plates, and baffles. The partition plates are placed inside the through holes and extend along the height of the chassis body, dividing the through holes to form a first drain outlet and a second drain outlet. The baffles are connected to the partition plates to form an overflow channel. The upper end of the overflow channel is the overflow outlet, and the lower end of the overflow channel is connected to the second drain outlet, so that the chassis body has the functions of drainage and overflow. The condensate collected in the water collection trough is discharged through the first drain outlet. When the first drain outlet is blocked, the water level rises to the overflow outlet for drainage. The first and second drain outlets can be connected through the same drainage pipe, which can centrally drain the condensate and effectively reduce the risk of condensate overflowing from all sides of the chassis body. This is suitable for heat pump equipment.

[0008] According to some embodiments of the present invention, the chassis is applied to a heat pump device with a safety valve. The safety valve is provided with a drain pipe, and the overflow channel is provided with a fixing part for fixing the drain pipe. The drain pipe passes through the overflow channel from the top end of the overflow channel and is connected to the fixing part.

[0009] According to some embodiments of the present invention, the fixing part is a sleeve formed in the overflow channel, the top end of the sleeve is provided with an opening for the drain pipe to pass through, and the drain pipe is inserted into the sleeve.

[0010] According to some embodiments of the present invention, the sleeve is connected to the baffle, and a notch is provided on one side of the sleeve. The notch extends along the height direction of the overflow channel and communicates with the overflow channel. On the projection plane perpendicular to the height direction of the chassis body, the projection plane of the sleeve does not coincide with or partially coincides with the projection plane of the second drain outlet.

[0011] According to some embodiments of the present invention, the bottom wall of the water receiving tank is provided with at least one protrusion, the protrusion being located inside the sleeve and abutting against the drain pipe, so as to separate the drain pipe from the bottom wall of the water receiving tank.

[0012] According to some embodiments of the present invention, the sleeve extends in a direction away from the chassis body, and the top of the sleeve is provided with a boss that is higher than the overflow port, and the boss is provided with fasteners for fixing the drain pipe.

[0013] According to some embodiments of the present invention, the first drain outlet and the second drain outlet have semi-circular cross-sections along the height direction perpendicular to the chassis body.

[0014] According to some embodiments of the present invention, the bottom wall of the water receiving tank is provided with a concave surface, the through hole is opened in the bottom wall of the concave surface, the bottom wall of the concave surface is provided with a water guiding slope inclined towards the through hole, the water guiding slope is arranged around the through hole, and the height of the overflow channel is higher than the height of the concave surface.

[0015] According to some embodiments of the present invention, the bottom of the chassis body is provided with a drain connector communicating with the through hole, the drain connector is used to connect a drain pipe, and the partition plate extends along the through hole toward the drain connector.

[0016] According to some embodiments of the present invention, the chassis body includes a water receiving tray, a support tray, and an insulation layer. The water receiving tray, the insulation layer, and the support tray are arranged sequentially from top to bottom. The through hole, the partition plate, and the baffle are formed on the support tray. The water receiving tray and the insulation layer are respectively provided with perforations communicating with the through hole. The partition plate and the baffle are inserted through the perforations from bottom to top and protrude from the bottom wall of the water receiving tray.

[0017] According to some embodiments of the present invention, the bottom wall of the chassis body is provided with a mounting position for installing a heat exchanger, and the mounting position and the through hole are spaced apart in the horizontal direction.

[0018] The heat pump device according to a second aspect embodiment of the present invention includes the chassis described in the first aspect embodiment.

[0019] The heat pump device according to the embodiments of this utility model has at least the following beneficial effects:

[0020] The heat pump equipment adopts the chassis of the first aspect embodiment. The chassis body has the functions of drainage and overflow. The condensate collected in the water tank is discharged through the first drain outlet. When the first drain outlet is blocked, the water level rises to the overflow outlet for drainage. The first drain outlet and the second drain outlet can be connected through the same drainage pipe, which can centrally drain the condensate and effectively reduce the risk of condensate overflowing from all sides of the chassis body.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a schematic diagram of the assembly of the chassis assembly, evaporator, and compressor according to an embodiment of the present invention;

[0024] Figure 2 This is a top view of the chassis assembly, evaporator, and compressor according to an embodiment of the present invention;

[0025] Figure 3 for Figure 1 Enlarged structural diagram at point A;

[0026] Figure 4 This is a schematic diagram of the chassis body according to an embodiment of the present invention;

[0027] Figure 5 This is an exploded structural diagram of the chassis body according to an embodiment of the present invention;

[0028] Figure 6 This is a top view of a support plate according to an embodiment of the present invention;

[0029] Figure 7 for Figure 6 Enlarged structural diagram at point C;

[0030] Figure 8 for Figure 6 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0031] Figure 9 This is a schematic diagram of the assembly of a water level detector and a bracket according to an embodiment of the present invention;

[0032] Figure 10 This is a cross-sectional schematic diagram of a water level detector according to an embodiment of the present invention.

[0033] Icon labels:

[0034] Chassis body 100; water receiving tray 101; first perforation 1011; insulation layer 102; second perforation 1021; support plate 103; water receiving trough 110; concave surface 111; water guiding slope 112; through hole 113; drain connector 114; drain outlet 120; first drain outlet 121; second drain outlet 122; overflow outlet 130; overflow channel 140; partition plate 141; mounting position 115; baffle 142; pipe sleeve 150; protrusion 151; boss 152; notch 153; perimeter 160; first perimeter 161; second perimeter 162;

[0035] Water level detector 200; main body 210; float 220; guide rod 230; first detection point 231; second detection point 232;

[0036] Safety valve 300; drain pipe 310;

[0037] Bracket 400;

[0038] 500mm water inlet pipe;

[0039] Water outlet pipe 600;

[0040] Chassis 1000;

[0041] Evaporator 2000;

[0042] Compressor 3000. Detailed Implementation

[0043] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0044] In the description of this utility model, it should be understood that the orientation descriptions, such as axial, circumferential, radial, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0045] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0046] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0047] This utility model proposes a chassis 1000, which includes a chassis body 100 and is applied to heat pump equipment. For ease of understanding, the embodiments of the heat pump equipment of this utility model are described first.

[0048] The heat pump device of this utility model embodiment includes a housing, a heat pump assembly, a water circuit assembly, and an air duct assembly. The housing has an inner cavity, and the heat pump assembly, water circuit assembly, and air duct assembly are installed in the inner cavity. The housing includes a chassis body 100, side plates, and a top cover. The chassis body 100 and the top cover are respectively connected to the upper and lower ends of the side plates. The chassis body 100 serves as the supporting structure of the housing.

[0049] The heat pump assembly includes a compressor 3000, a first heat exchanger, a second heat exchanger, and a throttling component. The first heat exchanger is located in the middle of the housing and is arranged vertically along the height of the housing. The first heat exchanger divides the inner cavity of the housing into an air inlet cavity and an air outlet cavity. The compressor 3000, the second heat exchanger, the throttling component, and the water circuit assembly are located in the air inlet cavity, and the air duct assembly is located in the air outlet cavity.

[0050] In some embodiments, the first heat exchanger is an evaporator 2000, and the second heat exchanger is a plate heat exchanger. The plate heat exchanger includes a refrigerant flow path and a water flow path. The evaporator 2000, the refrigerant flow path of the plate heat exchanger, the throttling device, and the compressor 3000 are connected to form a refrigerant circulation loop for refrigerant circulation. The water circuit assembly includes a water pump, an inlet pipe 500, an outlet pipe 600, and a valve body. The inlet pipe 500 and the outlet pipe 600 are respectively connected to the water flow path. The water pump can be installed on either the inlet pipe 500 or the outlet pipe 600 to form a water supply line. The air duct assembly includes a fan for drawing outdoor air into the air intake chamber and blowing it towards the evaporator 2000.

[0051] During operation, the refrigerant output from compressor 3000 passes through the plate heat exchanger, where it exchanges heat with water via the refrigerant flow path. After throttling, it enters evaporator 2000, where it exchanges heat with outdoor air before returning to compressor 3000 for the next cycle. A water pump drives chilled water into the water flow path of the plate heat exchanger, allowing the water to exchange heat with the refrigerant. Using the outdoor air as a heat source, heat is extracted through the heat exchange process to produce hot water.

[0052] The heat pump device of this utility model embodiment can provide hot water through the outlet pipe 600 for supplying domestic hot water and heating hot water. Alternatively, the outlet pipe 600 can be connected to a water tank to store the hot water for user use. The inlet of the inlet pipe 500 and the outlet of the outlet pipe 600 are both located on the chassis body 100 of the unit, avoiding their placement in the visible front or side areas and thus preserving the structural appearance.

[0053] Heat pump equipment can be installed indoors, specifically in basements, attics, garages, machine rooms, storage rooms, and other similar locations. This wide range of installation scenarios eliminates the need for outdoor installation, thus avoiding the high installation costs, long installation times, and high installation risks associated with outdoor unit installation.

[0054] Reference Figure 1 and Figure 2 As shown, the evaporator 2000 and compressor 3000 are fixedly mounted on the chassis body 100. The evaporator 2000 is located in the middle of the chassis body 100. The right side of the evaporator 2000 is the air inlet chamber, and the left side is the air outlet chamber. The compressor 3000 is located to the right of the evaporator 2000. Components such as the plate heat exchanger, throttling device, water pump, valve body, and air duct assembly are not shown in the attached drawings.

[0055] The upper surface of the chassis body 100 is recessed downwards to form a water receiving groove 110. The water receiving groove 110 is provided with a drain outlet 120 and an overflow outlet 130. The condensate generated during the operation of the heat pump equipment will flow into the water receiving groove 110 and be discharged through the drain outlet 120. A drain pipe can be installed at the bottom of the chassis body 100. The drain pipe is connected to the drain outlet 120 to drain the water away.

[0056] The overflow outlet 130 is higher than the drain outlet 120. If the drain outlet 120 or the drain pipe becomes blocked, the water level in the receiving tank 110 will rise to the overflow outlet 130, allowing water to drain out and preventing water from overflowing the receiving tank 110. The overflow outlet 130 can share the same drain pipe as the drain outlet 120, or it can have a separate drain pipe connected to the overflow outlet 130. In this embodiment, the height of the overflow outlet 130 does not exceed the height of the receiving tank 110, reducing the risk of water overflowing the receiving tank 110.

[0057] The mounting position 115 of the evaporator 2000 is located at the water receiving tank 110. The mounting position 115 can be connected to the evaporator 2000 by bolts, ensuring that the evaporator 2000 can be located above the water receiving tank 110, or that part of the structure of the evaporator 2000 is located inside the water receiving tank 110.

[0058] It should be noted that, referring to Figure 2 As shown, in the horizontal direction, the mounting position 115 of the evaporator 2000 and the through hole 113 are spaced apart. Specifically, the through hole 113 is located on the right side of the evaporator 2000 to avoid the through hole 113 being blocked by the evaporator 2000, and to facilitate the later cleaning of the blockage of the drain port 120 and the overflow port 130.

[0059] Since the evaporator 2000 needs to exchange heat with the outdoor air, when encountering a cold outdoor environment, the water in the water tank 110 will freeze into ice, which will block the drain outlet 120. When the water level rises to the overflow outlet 130, the ice will also block the overflow outlet 130, causing the water level to be too high and causing it to overflow from all sides of the chassis body 100, which poses a safety hazard.

[0060] Therefore, in this embodiment of the invention, a water level detector 200 and a heater are installed on the chassis body 100. The heater is located in the water receiving tank 110, and the water level in the water receiving tank 110 is detected by the water level detector 200. The heater and the water level detector 200 are configured to have the following operating modes: When the chassis 1000 is draining normally, the water receiving tank 110 is in a low water level state, the water level detector 200 will not be triggered, and the heater will not work. When the water level detected by the water level detector 200 is higher than the overflow port 130, it indicates that the drain port 120 or the drain pipe may be blocked due to ice. At this time, the heater is turned on to heat the water. If ice causes the drain port 120 to be blocked, heating the water receiving tank 110 by the heater can accelerate the melting of the ice, thereby quickly draining the water in the water receiving tank 110 and lowering the water level to below the overflow port 130. This effectively solves the problem of the drain port 120 being blocked by ice and reduces the risk of overflow from all sides of the chassis body 100 due to excessively high water levels.

[0061] In some embodiments, the heater includes, but is not limited to, a heating wire, a heating tape, a heating film, a heating element, or a heating tube. Taking a heating tape as an example, the heating tape can be coiled inside the water receiving tank 110 by a fixing member, and the water receiving tank 110 is heated by the heating tape to increase the temperature inside the water receiving tank 110, thereby reducing the probability of condensate freezing and preventing condensate from freezing and blocking the drain outlet 120.

[0062] Reference Figure 4 As shown, in some embodiments, the structure of the drain outlet 120 and the overflow outlet 130 is optimized so that the drain outlet 120 and the overflow outlet 130 can share the same drainage pipe.

[0063] Specifically, refer to Figure 6 and Figure 7As shown, the bottom wall of the water receiving tank 110 is provided with a through hole 113, a partition plate 141 and a baffle 142. The through hole 113 is a circular hole. The partition plate 141 is disposed in the through hole 113 and extends along the height direction of the chassis body 100. The upper end of the partition plate 141 is higher than the through hole 113, so that the partition plate 141 divides the through hole 113 to form a first drain outlet 121 and a second drain outlet 122. The first drain outlet 121 and the second drain outlet 122 are respectively located on both sides of the partition plate 141. The two ends of the partition plate 141 are respectively connected to the inner wall of the through hole 113. The portion of the partition plate 141 protruding from the through hole 113 is connected to the baffle 142. The partition plate 141 and the baffle 142 surround each other to form an overflow channel 140. The upper end of the overflow channel 140 is an overflow port 130, and the lower end of the overflow channel 140 is connected to the second drain port 122, so that the height of the overflow port 130 is higher than the height of the first drain port 121. The height of the overflow channel 140 does not exceed the height of the water receiving tank 110. The first drain port 121 is the drain port 120 of the above embodiment, that is, the main drain port, so that the drain port 120 and the overflow port 130 share the same through hole 113 for drainage.

[0064] The partition plate 141 is a straight plate, and the baffle plate 142 is an arc-shaped plate. The bottom end of the baffle plate 142 is connected to the bottom wall of the water receiving tank 110. The baffle plate 142 is set along the periphery of the second drain outlet 122, so that the baffle plate 142 can be connected to the partition plate 141 and surround the second drain outlet 122. Since the drain outlet 120 and the overflow outlet 130 share the same through hole 113, a drainage pipe can be set at the bottom of the chassis body 100 to connect with the through hole 113, making the structure simpler and more reasonable, and easily adaptable to indoor and outdoor installation environments.

[0065] Reference Figure 6 and Figure 7 As shown, in some embodiments, the cross-sections of the first drain outlet 121 and the second drain outlet 122 are semi-circular along the height direction perpendicular to the chassis body 100. That is, the circular through hole 113 is divided into two semi-circular holes by the partition plate 141, which improves manufacturability, reduces processing costs, and facilitates matching with external drainage pipes. In the embodiments, the size requirements of the through hole 113 can be selected according to the drainage requirements of the drain outlet 120 and the overflow outlet 130 to ensure that the drain outlet 120 and the overflow outlet 130 can drain smoothly.

[0066] Of course, the shape of the through hole 113 is not limited to a circle; it can also be square or other polygonal shapes. For example, a square through hole 113 can be divided into two rectangular holes by a partition plate 141. In some embodiments, the cross-section of the overflow channel 140 is not limited to a semi-circular shape; it can also be selected as square, elliptical, etc., according to actual application requirements.

[0067] In some embodiments, the through hole 113, the partition plate 141, the baffle plate 142, and the chassis body 100 are manufactured using an integral molding process, resulting in a more reliable structure. Alternatively, the partition plate 141 and the baffle plate 142 can be integrally formed into a structural component, which is then installed onto the chassis body 100, thus both separating the through hole 113 and forming the overflow channel 140.

[0068] Reference Figure 8 As shown, the bottom of the chassis body 100 is provided with a drain connector 114 that communicates with the through hole 113. The drain connector 114 is cylindrical and protrudes from the bottom surface of the chassis body 100. The drain pipe 310 sleeve 150 can be directly sleeved on the drain connector 114. The partition plate 141 is arranged from the through hole 113 toward the drain connector 114, so that the drain connector 114 is divided into two flow channels. The two flow channels are respectively connected to the first drain port 121 and the second drain port 122, and both flow channels are connected to the drain pipe, ensuring that the condensate discharged from the first drain port 121 or the second drain port 122 can be discharged along the drain pipe. This allows the water to be discharged into the sewer in a concentrated manner, and also improves the sealing of the connection between the chassis body 100 and the drain pipe, reducing the risk of water leakage.

[0069] Under normal operating conditions, water from the receiving tank 110 drains through the first drain outlet 121. When the receiving tank 110 is at a low water level, the water level detector 200 is not triggered, and the heater does not operate. When ice forms in the receiving tank 110, blocking the first drain outlet 121, and the water level rises to the overflow outlet 130, water flows through the overflow outlet 130 into the overflow channel 140 and is finally discharged through the second drain outlet 122. At this point, the water level detector 200 is triggered, sending a signal to the controller, which then activates the heater to heat the receiving tank 110 to melt the ice. When ice blocks the drain pipe, heating the water in the receiving tank 110 allows hot water to enter the drain pipe, thus accelerating the melting of ice and effectively solving the problem of ice blocking the drain outlet 120 or external drain pipes.

[0070] The bottom wall of the water receiving tray 101 has a downwardly recessed surface 111, and a through hole 113 is located on the bottom wall of the concave surface 111. The bottom wall of the concave surface 111 also has a water-guiding slope 112 that is inclined towards the through hole 113. Water in the water receiving tank 110 can flow into the concave surface 111 and then flow along the water-guiding slope 112 to the first drain outlet 121. The concave surface 111 allows condensate to quickly and directionally collect, and in conjunction with the water-guiding slope 112, it helps to improve drainage efficiency and reduce the risk of ice formation in the water receiving tank 110. The water-guiding slope 112 is arranged around the periphery of the through hole 113. Since the overflow channel 140 is arranged around the second drain outlet 122, part of the water-guiding slope 112 will be inclined towards the outside of the overflow channel 140. When the water flows along the guide slope to the outer peripheral wall of the overflow channel 140, it will flow along the outer peripheral wall of the overflow channel 140 to the first drain outlet 121.

[0071] In some embodiments, the inclination angle of the guide slope 112 is 3°-10°, preferably 5°, to ensure that the water flow quickly converges along the guide slope 112 to the first drain outlet 121 and is then discharged through the drain pipe. It should be noted that the height of the overflow channel 140 is higher than the height of the concave surface 111, making the height difference between the overflow outlet 130 and the first drain outlet 121 more reasonable, and avoiding the overflow outlet 130 being too low, which could easily cause frequent start-ups of the heater.

[0072] Reference Figure 1 and Figure 2 As shown, the chassis 1000 also includes a safety valve 300 and a drain pipe 310. The inlet pipe 500 and the outlet pipe 600 are connected to the chassis body 100. The safety valve 300 is connected to the inlet pipe 500. One end of the drain pipe 310 is connected to the drain end of the safety valve 300, and the other end is inserted into the overflow channel 140 through the overflow port 130.

[0073] Safety valve 300 is a normally closed valve. Safety valve 300 has a set threshold. Under normal operating conditions, when the operating pressure of the water circuit component is less than the set threshold, safety valve 300 remains closed. Taking a set threshold of 0.5MPa as an example, when the operating pressure of the water circuit component is greater than or equal to 0.5MPa, safety valve 300 opens, and high-pressure water is introduced into overflow channel 140 through drain pipe 310 to achieve the purpose of pressure relief, thereby controlling the pressure of the water circuit component to not exceed the set threshold.

[0074] Reference Figure 3As shown, a fixing part for fixing the drain pipe 310 is provided in the overflow channel 140. After the drain pipe 310 passes through the overflow channel 140, it is connected to the fixing part, so that the outlet of the drain pipe 310 is opposite to the second drain outlet 122, ensuring that the sprayed high-pressure water can directly hit the second drain outlet 122, resulting in a better impact effect. By fixing the drain pipe 310 with the fixing part, it can be ensured that the safety valve 300 can be stably inserted into the overflow channel 140, preventing the drain pipe 310 from shifting due to excessive water pressure.

[0075] Reference Figure 4 As shown, in some embodiments, the drain pipe 310 is a flexible hose structure, and the fixing part can be a sleeve 150. The sleeve 150 can be formed on the inner wall of the overflow channel 140 by an integral molding process. The drain pipe 310 can be directly inserted into the sleeve 150 for fixing, and the fastening effect can be achieved by interference fit.

[0076] To prevent the drain pipe 310 from penetrating the sleeve, a limiting part is provided at the bottom of the sleeve 150. The limiting part can be a rib, which is formed on the inner wall of the sleeve 150. The rib limits the drain pipe 310, ensuring that the drain pipe 310 can be accurately fixed in the overflow channel 140, and the rib does not affect the drainage of the drain pipe 310, ensuring that the high-pressure water sprayed from the safety valve 300 can be discharged smoothly.

[0077] Reference Figure 7 As shown, a notch 153 is provided on one side of the sleeve 150. The notch 153 extends along the height direction of the overflow channel 140 and communicates with the overflow channel 140. On the projection plane perpendicular to the height direction of the chassis body 100, the projection plane of the sleeve 150 and the projection plane of the second drain port 122 do not completely coincide. That is, the projection plane of the sleeve 150 and the projection plane of the second drain port 122 may not coincide or may partially coincide. In this way, when the drain pipe 310 is inserted into the sleeve 150, the outlet of the drain pipe 310 will not be directly opposite the second drain port 122. This can reduce the space occupied by the drain pipe 310 in the overflow channel 140, so that the drain pipe 310 does not block the second drain port 122, reducing the risk of blockage of the second drain port 122 and the overflow channel 140.

[0078] In this embodiment, the sleeve 150 is connected to the baffle 142 and protrudes from the side of the baffle 142 facing away from the overflow channel 140, so that the sleeve 150 and the second drain outlet 122 are staggered. The notch 153 extends along the vertical direction of the sleeve 150 to ensure that the water drained from the drain pipe 310 can flow into the overflow channel 140 through the notch 153.

[0079] Reference Figure 7As shown, it can be understood that since the outlet of the drain pipe 310 is positioned opposite to the bottom wall of the water receiving trough 110, in order to avoid the bottom wall of the water receiving trough 110 blocking the water discharge of the drain pipe 310, in some embodiments, a protrusion 151 is provided on the bottom wall of the water receiving trough 110. The protrusion 151 is located inside the pipe sleeve 150 and abuts against the drain pipe 310. The protrusion 151 separates the drain pipe 310 from the bottom wall of the water receiving trough 110, so that a gap is formed between the drain pipe 310 and the bottom wall of the water receiving trough 110. The water discharged from the drain pipe 310 can flow along the gap to the second drain outlet 122, ensuring that the high-pressure water discharged by the safety valve 300 can be discharged smoothly.

[0080] It should be noted that the number of protrusions 151 is not limited to one; multiple protrusions 151 can be set. Multiple protrusions 151 are arranged around the circumference of the sleeve 150 to make the gap distribution more uniform and ensure that the drainage of the drain pipe 310 is not affected.

[0081] Reference Figure 7 As shown, in some embodiments, the sleeve 150 extends away from the chassis body 100, and the top of the sleeve 150 protrudes above the overflow port 130, forming a boss 152. That is, the top of the sleeve 150 protrudes above the overflow port 130, and its height is higher than the overflow channel 140. Since the drain pipe 310 is inserted into the sleeve 150 through the opening at the top, the drain pipe 310 can be fixed by fasteners to ensure that the drain pipe 310 can be stably inserted into the sleeve 150. In this embodiment, the fastener is a cable tie, which can be directly tied to the boss 152 to effectively fix the drain pipe 310 without affecting the drainage of the overflow channel 140.

[0082] The installation structure, through the cooperation of the sleeve 150 and the fastener, allows the water discharged from the safety valve 300 to be smoothly drained away, preventing water pressure from splashing onto nearby devices. Of course, the fastener is not limited to cable ties; for example, the fastener can also be a pipe clamp, which is fixed to the boss 152 and clamps the drain pipe 310 to achieve the function of fixing the drain pipe 310.

[0083] Reference Figure 5As shown, the chassis body 100 includes a water receiving tray 101, a support plate 103, and an insulation layer 102. The water receiving tray 101, the insulation layer 102, and the support plate 103 are arranged sequentially from top to bottom, that is, the water receiving tray 101 is located on the upper side of the support plate 103, and the insulation layer 102 is located between the water receiving tray 101 and the support plate 103. The through hole 113, the partition plate 141, and the baffle 142 are integrally formed with the support plate 103. The water receiving tray 101 is provided with a first through hole 1011, and the insulation layer 102 is provided with a second through hole 1021. The first through hole 1011 and the second through hole 1021 are both connected to the through hole 113. The partition plate 141 and the baffle 142 pass through the second through hole 1021 and the first through hole 1011 sequentially from bottom to top, and the partition plate 141 and the baffle 142 protrude from the bottom wall of the water receiving tray 101.

[0084] In some embodiments, the chassis 1000 includes a plurality of bolts, which are used to fix the water receiving tray 101, the insulation layer 102 and the support plate 103, so that the water receiving tray 101 and the support plate 103 clamp the insulation layer 102.

[0085] The water receiving tray 101 is made of metal, the support plate 103 is made of plastic, and the insulation layer 102 is made of foam. Specifically, the water receiving trough 110 and the concave surface 111 are formed by an integral molding process. The upper surface of the insulation layer 102 is adapted to the lower end surface of the water receiving tray 101, and the lower surface of the insulation layer 102 is adapted to the upper end surface of the support plate 103. The insulation layer 102 separates the water receiving tray 101 from the support plate 103, which can prevent the transfer of heat between the water receiving tray 101 and the support plate 103 and reduce the generation of condensate.

[0086] Reference Figure 5 As shown, the outer periphery of the chassis body 100 is provided with a surrounding edge 160, specifically including a first surrounding edge 161 and a second surrounding edge 162. The outer periphery of the water receiving tray 101 is provided with the first surrounding edge 161, and the outer periphery of the support plate 103 is provided with the second surrounding edge 162. The second surrounding edge 162 and the upper surface of the support plate 103 define a receiving groove, and both the water receiving tray 101 and the insulation layer 102 are disposed in the receiving groove. The outer periphery of the insulation layer 102 is provided with a protruding edge, which can separate the first surrounding edge 161 and the second surrounding edge 162 to prevent the water receiving tray 101 from contacting the support plate 103. It should be noted that in this embodiment, both the first surrounding edge 161 and the second surrounding edge 162 are higher than the water receiving groove 110.

[0087] Reference Figure 9As shown, the water level detector 200 is a water level switch with a first detection point 231 and a second detection point 232. The water level detected at the first detection point 231 is at the same height as the overflow port 130, and the water level detected at the second detection point 232 is higher than the water level detected at the first detection point 231. In this embodiment, the chassis 1000 also includes a bracket 400, which is used to fix the water level switch to the chassis body 100, ensuring that the installation structure of the water level switch is stable and reliable, and ensuring that the first detection point 231 and the second detection point 232 have high accuracy.

[0088] Reference Figure 10 As shown, the water level switch in this embodiment is specifically a float-type water level switch. The water level switch includes a main body 210 and a float 220. The float 220 is provided with a guide rod 230 connected to the main body 210. The guide rod 230 is provided with a first detection point 231 and a second detection point 232. Since the float 220 can float up and down with the water level, it drives the guide rod 230 to move relative to the main body 210. The higher the water level, the greater the rise of the float 220. The second detection point 232 is located close to the float 220, and the first detection point 231 is located above the second detection point 232. Therefore, during the rise of the float 220, the first detection point 231 and the second detection point 232 will be triggered sequentially.

[0089] Both the first detection point 231 and the second detection point 232 are induction magnetic coils. The main body 210 is provided with a magnetic sensing element. The magnetic sensing element detects the induction magnetic coils to determine whether the first detection point 231 and the second detection point 232 have been reached. In some embodiments, the detection water level at the second detection point 232 is higher than the height of either the first enclosure 161 or the second enclosure 162. The detection water level at the second detection point 232 can be understood as the warning water level of the entire machine. The warning water level can be higher than the water receiving tank 110 and lower than the smaller of the heights of the first enclosure 161 and the second enclosure 162.

[0090] When the water level rises, the float 220 floats due to buoyancy and is driven by the guide rod 230. When the water level reaches the overflow port 130, the magnetic element senses the first detection point 231, triggering the first water level signal. This indicates that the drain port 120 or the external drainage pipe is blocked, and the heater can be turned on to heat and defrost. When the water level exceeds the overflow port 130 and reaches the warning water level, the magnetic element senses the second detection point 232, triggering the second water level signal. This indicates that the drain port 120, the overflow port 130, or the external drainage pipe is blocked, posing a safety hazard to the internal components of the machine. At this time, the safety valve 300 needs to be opened to spray high-pressure water to clear the blockage. This effectively reduces the risk of water being discharged from the sides of the chassis body 100, easily handling indoor and outdoor installation environments and reducing the safety hazards of heat pump equipment.

[0091] Combination Figure 1 and Figure 2 It is understood that the chassis body 100 is provided with a bracket 400 for fixing the water level switch. The bottom of the bracket 400 is fixedly connected to the bottom wall of the chassis body 100 and near the water receiving tank 110, specifically by bolts, rivets or other fasteners. The upper end of the water level switch is connected to the bracket 400, and the float 220 is located in the water receiving tank 110, ensuring that the float 220 can move up and down with the water level in the water receiving tank 110.

[0092] Since the heat pump equipment adopts all the technical solutions of the chassis 1000 in the above embodiments, it has at least all the beneficial effects brought about by the technical solutions in the above embodiments, which will not be repeated here.

[0093] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A chassis, characterized in that, include: The chassis body is provided with a water receiving trough. The bottom wall of the water receiving trough is provided with a through hole, a partition plate and a baffle. The partition plate is disposed in the through hole and extends along the height direction of the chassis body. The top of the partition plate is higher than the through hole. The partition plate divides the through hole to form a first drain outlet and a second drain outlet. The baffle is connected to the partition plate to form an overflow channel. The top of the overflow channel is provided with an overflow port. The lower end of the overflow channel is connected to the second drain outlet.

2. The chassis according to claim 1, characterized in that, The chassis is used in a heat pump device with a safety valve. The safety valve is equipped with a drain pipe. The overflow channel is provided with a fixing part for fixing the drain pipe. The drain pipe passes through the top of the overflow channel and is connected to the fixing part.

3. The chassis according to claim 2, characterized in that, The fixing part is a sleeve formed in the overflow channel, and the top end of the sleeve is provided with an opening for the drain pipe to pass through, and the drain pipe is inserted into the sleeve.

4. The chassis according to claim 3, characterized in that, The sleeve is connected to the baffle. A notch is provided on one side of the sleeve. The notch extends along the height direction of the overflow channel and communicates with the overflow channel. On the projection plane perpendicular to the height direction of the chassis body, the projection plane of the sleeve does not coincide with or partially coincides with the projection plane of the second drain outlet.

5. The chassis according to claim 4, characterized in that, The bottom wall of the water receiving tank is provided with at least one protrusion, which is located inside the pipe sleeve and abuts against the drain pipe to separate the drain pipe from the bottom wall of the water receiving tank.

6. The chassis according to claim 3, characterized in that, The sleeve extends away from the chassis body, and the top of the sleeve has a boss that is higher than the overflow port. The boss has fasteners for fixing the drain pipe.

7. The chassis according to claim 1, characterized in that, The first drain outlet and the second drain outlet have semi-circular cross-sections along the height direction perpendicular to the chassis body.

8. The chassis according to claim 1, characterized in that, The bottom wall of the water receiving tank has a concave surface, the through hole is opened in the bottom wall of the concave surface, the bottom wall of the concave surface has a water guiding slope that is inclined toward the through hole, the water guiding slope is arranged around the through hole, and the height of the overflow channel is higher than the height of the concave surface.

9. The chassis according to claim 1, characterized in that, The bottom of the chassis body is provided with a drain connector that communicates with the through hole. The drain connector is used to connect a drain pipe. The partition plate extends along the through hole toward the drain connector.

10. The chassis according to claim 1, characterized in that, The chassis body includes a water receiving tray, a support tray, and an insulation layer. The water receiving tray, the insulation layer, and the support tray are arranged sequentially from top to bottom. The through hole, the partition plate, and the baffle are formed on the support tray. The water receiving tray and the insulation layer are respectively provided with perforations communicating with the through hole. The partition plate and the baffle are inserted through the perforations from bottom to top and protrude from the bottom wall of the water receiving tray.

11. The chassis according to claim 1, characterized in that, The bottom wall of the chassis body is provided with a mounting position for installing a heat exchanger, and the mounting position and the through hole are spaced apart in the horizontal direction.

12. A heat pump device, characterized in that, Includes the chassis as described in any one of claims 1 to 11.

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