Drainage device of freezing or refrigerating equipment

Abstract

The utility model discloses a drainage device of freezing or cold storage equipment, which comprises a water collecting tank, a drainage pipe and a drainage pipe, the shell is detachably arranged in the water collecting tank and is positioned in the water collecting tank; a control unit; a drainage pump; and a water level detection unit. Wherein the shell is detachably arranged on the two adjacent side walls of the water collecting tank through two arrangement parts, the shell is provided with an enclosing wall, the enclosing wall is provided with two side edges which abut against the two side walls of the water collecting tank respectively to partially enclose an inner space in the water collecting tank, and the bottom of the enclosing wall is provided with a plurality of hollow parts which are concavely arranged from bottom to top. And a plurality of channels for water to pass through are formed between the hollow parts and the bottom plate, so that water in the water collecting tank can enter the internal space from the plurality of hollow parts.

Description

Technical Field

[0001] This utility model relates to a condensate drainage technology for refrigeration or freezing equipment, and in particular to a drainage device for refrigeration or freezing equipment. Background Technology

[0002] Currently, the condensate drain system in commercially available freezers or refrigerators is typically located at the bottom, usually in a flat, box-like shape, for collecting and draining water. However, after prolonged use, this drain system can accumulate a large amount of foreign matter due to dust falling in or the carcasses of dead insects such as cockroaches. Even worse, some meat vendors' freezers may have meat scraps falling in, all of which can cause foreign objects to enter the drain system, jamming the motor impeller and preventing it from operating, thus rendering the drain function ineffective.

[0003] Furthermore, repairing the drainage system when it becomes clogged with dirt presents a significant challenge. Currently known technologies typically divide the water collection box into two spaces: one where the motor, controller, and piping are housed in a water-free compartment, and the other where water is collected. Water is then drawn in and drained through the pipes into the water-filled space. However, repairs require removing the locking screws from each component—motor, controller, and piping—from the water collection box, which is extremely cumbersome and results in high repair costs.

[0004] Therefore, the issue to be addressed in this case is how to make the drainage device less prone to getting clogged with dirt and ensure its smooth normal operation, and how to facilitate maintenance even if it does get clogged. Utility Model Content

[0005] The main purpose of this utility model is to provide a drainage device for freezing or refrigeration equipment, which can prevent the drainage pump from getting stuck with dirt and ensure its smooth normal operation.

[0006] Another objective of this invention is to provide a drainage device for refrigeration or freezing equipment, which allows the casing to be easily removed from the water collection tank for maintenance.

[0007] To achieve the above objectives, this utility model proposes a drainage device for a freezing or refrigeration equipment, comprising: a water collection tank having four side walls and a bottom plate combined to form a rectangle, each side wall serving as one side of the rectangle; the water collection tank being used to collect condensate from a freezing or refrigeration equipment; a housing detachably disposed within the water collection tank; a control unit disposed within the housing; a drain pump disposed within the housing and the water collection tank, and electrically connected to the control unit, the drain pump having a drain pipe extending outside the water collection tank; and a water level detection unit disposed within the housing and the water collection tank, and electrically connected to the control unit, the water level detection unit having a water level sensor. The housing has two mounting portions, which are detachably mounted on two adjacent side walls of the water collection tank. The housing has a wall with two sides that abut against the two side walls of the water collection tank, partially enclosing an internal space within the water collection tank. The control unit, the drain pump, and the water level detection unit are all located within this internal space. The bottom of the wall has multiple recessed openings that are spaced apart from each other. The bottom of the wall abuts against the base plate, and the multiple openings form multiple channels for water to pass through, allowing water in the water collection tank to enter the internal space through the multiple openings.

[0008] The water collection tank has a hanging part on each of its two adjacent side walls. The two mounting parts of the housing are hook-shaped and can be detachably hung on the two side walls by passing through the hanging parts.

[0009] The housing includes a waterproof box, a first frame, and a second frame. The control unit is located inside the waterproof box. The first frame is detachably located in the waterproof box. The water level detection unit is located in the first frame. The second frame is detachably located in the waterproof box. The drainage pump is located in the second frame. The enclosure is formed by extending downward from the edges of the first frame and the second frame and joining them together.

[0010] The first frame and the waterproof box are detachably connected by a hook and a slot structure, and the second frame and the waterproof box are also detachably connected by a hook and a slot structure.

[0011] The water collection tank has a hanging part on each of its two adjacent side walls. The two hanging parts are located on the waterproof box and are in the shape of hooks. They can be detachably hung on the hanging parts of the two side walls.

[0012] The wall also has a water inlet with a cross-sectional area larger than that of the channel, and a filter screen is installed at the water inlet.

[0013] The side of the wall abuts against the opposite side wall of the water collection trough, thereby partially enclosing an internal space within the water collection trough.

[0014] The side of the wall abuts against the two adjacent side walls of the water collection tank, thus partially enclosing an internal space within the water collection tank.

[0015] Among them, the water level detection unit is equipped with an overflow detection float.

[0016] The water collection tank has a recessed groove on one side wall, and the drain pipe passes through the groove and exits the water collection tank.

[0017] Therefore, this utility model can prevent the drainage pump from getting stuck with dirt and ensure its normal operation. In addition, it can also make it easy to remove the housing from the water collection tank for maintenance.

[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Attached Figure Description

[0019] Figure 1 This is a perspective view of a preferred embodiment of the present invention.

[0020] Figure 2 This is a partial exploded view of a preferred embodiment of the present invention.

[0021] Figure 3 This is another exploded view of a preferred embodiment of the present invention.

[0022] Figure 4 This is another exploded view of a preferred embodiment of the present invention.

[0023] Figure 5 This is a partial cross-sectional view of a preferred embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the operation of a preferred embodiment of the present invention, showing the low water level state after the wall is removed.

[0025] Figure 7 This is a schematic diagram of the operation of a preferred embodiment of the present invention, showing a high water level state.

[0026] Figure 8 This is a schematic diagram of the operation of a preferred embodiment of the present invention, showing the overflow water level status.

[0027] Figure 9 This is another perspective view of a preferred embodiment of the present invention, showing a state without an inlet and a filter.

[0028] Figure 10This is another perspective view of a preferred embodiment of the present invention, showing the combined state when the water collection tank is large.

[0029] In the attached figures, the following labels are used:

[0030] 10: Drainage device for freezing or refrigeration equipment

[0031] 11: Water collection tank

[0032] 12: Sidewall

[0033] 121: Container

[0034] 122: Hanging Department

[0035] 14: Base Plate

[0036] 141: Channel

[0037] 21: Shell

[0038] 212: Setup Department

[0039] 22: Waterproof box

[0040] 221: Hook

[0041] 222: Hanging slot

[0042] 24: First frame

[0043] 26: Second frame

[0044] 28: Wall

[0045] 281: Side

[0046] 282: Openwork section

[0047] 29: Inlet

[0048] 291: Filter

[0049] 31: Control Unit

[0050] 41: Drainage pump

[0051] 42: Drain pipe

[0052] 51: Water level detection unit

[0053] 52: Water level detection buoy

[0054] 54: Overflow Detection Float

[0055] 99: Bolts

[0056] HL: High Water Level

[0057] IS: Interior Space

[0058] LL: Low water level

[0059] OL: Overflow level

[0060] 11': Water collection tank

[0061] 12': Sidewall

[0062] 21': Shell

[0063] 28': Wall

[0064] 281': Side Detailed Implementation

[0065] To illustrate the technical features of this utility model in detail, the following preferred embodiments are described below with reference to the accompanying drawings, wherein:

[0066] like Figures 1 to 8 As shown, this utility model describes a drainage device 10 for a refrigeration or freezing equipment through a preferred embodiment. It mainly consists of a water collection tank 11, a housing 21, a control unit 31, a drainage pump 41, and a water level detection unit 51, wherein:

[0067] The water collection tank 11 has four side walls 12 and a bottom plate 14 combined to form a rectangle, with each side wall 12 serving as one side of the rectangle. The water collection tank 11 is used to collect condensate from a freezing or refrigeration equipment.

[0068] The housing 21 is detachably disposed on the water collection tank 11 and located inside the water collection tank 11.

[0069] The control unit 31 is located in the housing 21.

[0070] The drain pump 41 is disposed in the housing 21 and located inside the water collection tank 11, and is electrically connected to the control unit 31. The drain pump 41 has a drain pipe 42 extending outside the water collection tank 11. In this embodiment, a side wall 12 is provided with a downward recessed groove 121, through which the drain pipe 42 passes out of the water collection tank 11. The effect of this structure is that when the drain pump 41 and the housing 21 move upward out of the water collection tank 11, the drain pipe 42 can also move directly upward out of the groove 121.

[0071] The water level detection unit 51 is disposed in the housing 21 and located inside the water collection tank 11, and is electrically connected to the control unit 31. The water level detection unit 51 has a water level detection float 52. The control unit 31 uses the water level detection unit 51 to detect the water level in the water collection tank 11. The user can set the water level detection float 52 to detect a low water level LL, a high water level HL, and an overflow water level OL. The specific technical details can be achieved by using a microswitch. Since this is a technology well known to those skilled in the art, it will not be described in detail. Wherein, the low water level LL means that when the drainage pump 41 drains water to the low water level LL, the control unit 31 controls the drainage pump 41 to stop operating; the high water level HL means that when the water level is high enough to reach the high water level HL, the control unit 31 controls the drainage pump 41 to operate to drain water; the overflow water level OL means that even if the drainage pump 41 is controlled to operate to drain water, but the water level still rises to a level higher than the high water level HL due to a malfunction or other reasons, this is the water level at which an overflow is imminent, and the control unit 31 will issue a warning. Although the water level detection float 52 can independently detect the aforementioned low water level LL, high water level HL, and overflow water level OL, in some special cases, such as to prevent the water level detection float 52 from being damaged and unable to detect the water level, an overflow detection float 54 can be added. In this way, the water level detection float 52 can be used to detect the low water level LL and the high water level HL, while the overflow detection float 54 can be used to detect the overflow water level OL. In this embodiment, the water level detection float 52 and the overflow detection float 54 are set up at the same time as an example.

[0072] The housing 21 has two mounting portions 212, which are detachably mounted on the two adjacent side walls 12 of the water collection tank 11. In actual implementation, each of the two adjacent side walls 12 of the water collection tank 11 has a hanging portion 122, and the two mounting portions 212 of the housing 21 are hook-shaped, and are detachably hung on the hanging portions 122 of the two side walls 12.

[0073] The housing 21 has a wall 28, which has two sides 281 that abut against the two opposite side walls 12 of the water collection tank 11, partially enclosing an internal space IS within the water collection tank 11. The control unit 31, the drain pump 41, and the water level detection unit 51 are all located within the internal space IS. The bottom of the wall 28 has a plurality of recessed perforations 282 that are recessed from bottom to top, and the plurality of perforations 282 are spaced apart from each other. The bottom of the wall 28 abuts against the base plate 14, and the plurality of perforations 282 and the base plate 14 form a plurality of channels 141 for water to pass through, allowing water in the water collection tank 11 to enter the internal space IS through the plurality of perforations 282. Furthermore, depending on the situation, an inlet 29 can be provided on the enclosure 28. The cross-sectional area of ​​the inlet 29 is larger than that of the channel 141, and a filter screen 291 can be provided on the inlet 29. In this way, the efficiency of water entering the internal space IS can be increased, while dirt can be kept out of the internal space IS. In this embodiment, the inlet 29 and the filter screen 291 are provided as an example, but it is not necessary to provide the inlet 29 and the filter screen 291. The state without the inlet 29 and the filter screen 291 is as follows. Figure 9 As shown.

[0074] In actual implementation, the housing 21 can be a single integral structure or composed of several components. In this embodiment, the housing 21 is composed of several components. Specifically, the housing 21 has a waterproof box 22, a first frame 24, and a second frame 26. The control unit 31 is located inside the waterproof box 22. The first frame 24 and the waterproof box 22 are detachably connected by a hook 221 and a hanging groove 222. The water level detection unit 51 is located on the first frame 24. The second frame 26 and the waterproof box 22 are also detachably connected by a hook 221 and a hanging groove 222. The drainage pump 41 is located on the second frame 26. The enclosure 28 is formed by the downward extension and connection of the edges of the first frame 24 and the second frame 26. The two mounting parts 212 are further located within the waterproof box 22.

[0075] It is worth mentioning that the housing 21 and the water collection tank 11 can also be secured with bolts 99, or the waterproof box 22 can also be secured with the first frame 24 and the second frame 26 with bolts 99. Bolts can also be used in conjunction with the structure of the hook 221 and the hanging groove 222, depending on the needs.

[0076] The structure of this embodiment has been described above. The operation state of this embodiment will be described next.

[0077] like Figures 1 to 6As shown, under normal operating conditions, this utility model is placed at the bottom of a freezing or refrigeration device (not shown) to collect condensate. When water enters the water collection tank 11, the water will enter the internal space IS through the multiple channels 141 and the filter screen 291 of the water inlet 29, so that the water level in the internal space IS is the same as the water level in the water collection tank 11.

[0078] like Figure 6 and Figure 7 Cooperate Figure 3 As shown, when water continuously enters the water collection tank 11 and the water level rises to the high water level HL, the control unit 31 starts the drainage pump 41 to start operating and drain water. When the water level drops to the low water level LL, the control unit 31 controls the drainage pump 41 to stop operating and stop draining water.

[0079] like Figure 8 Cooperate Figure 3 As shown, when a malfunction occurs that causes the drainage function to fail, such as when dirt blocks the drainage pump 41 and it does not operate, or when other malfunctions occur, the water level will rise above the high water level HL and reach the overflow water level OL due to the continuous inflow of water. At this time, the control unit 31 will detect this situation through the overflow detection float 54 and issue a warning.

[0080] The assembly state of this embodiment will be described next.

[0081] like Figures 1 to 4 As shown, since the housing 21 is installed in the water collection tank 11 and is hung on the two side walls 12 by the two mounting parts 212 on the waterproof box 22, and the drain pipe 42 passes through the container 121, if the housing 21 is to be removed from the water collection tank 11, it is only necessary to lift the housing 21 directly upwards. At this time, the two mounting parts 212 can be directly detached from the mounting parts 122, and the drain pipe 42 can also be directly removed from the container 121. Since the control unit 31, the water level detection unit 51, and the drain pump 41 are all located in the housing 21, they can be removed from the water collection tank 11 as a whole. In this way, it is convenient to maintain each component. If all components are to be installed in the water collection tank 11, the above operations can be reversed to complete the assembly, which is quite convenient.

[0082] Furthermore, since the waterproof box 22 is also detachably connected to the first frame 24 and the second frame 26, it allows users to easily disassemble them individually for maintenance, providing even greater convenience.

[0083] like Figure 5As shown, the wall 28 of this utility model, the multiple channels 141 formed between it and the base plate 14 can achieve the basic effect of blocking dirt by controlling their diameter. However, this can only block larger dirt. Therefore, setting the water inlet 29 and the filter screen 291 can increase the water intake efficiency, but can also more effectively block smaller dirt.

[0084] As can be seen from the above, the technology of this utility model embodiment can indeed achieve the effect of making the drain pump 41 less prone to getting stuck with dirt and able to work smoothly. In addition, this embodiment can also make it convenient for users to remove internal components for maintenance. Furthermore, the housing 21 can also be disassembled from the first frame 24 and the second frame 26, making it even more convenient to maintain the components on it.

[0085] like Figure 10 As shown, the enclosure 28' of this utility model can also be modified so that the two sides 281' of the enclosure 28' respectively abut against the two adjacent side walls 12' of the water collection tank 11', and similarly, an internal space can be partially enclosed within the water collection tank 11' (see [reference]). Figures 6 to 8 Similarly, the housing 21' can be conveniently installed in the water collection tank 11' in a detachable manner, thus making it suitable for larger water collection tanks 11'. In this way, the housing 21' of this utility model can be used for water collection tanks 11' of different sizes, and is not limited to the size of the water collection tank 11 in the aforementioned embodiments.

[0086] The above description is merely an illustration of the present utility model through embodiments and should not be construed as limiting the patent scope of the present utility model. Any simple variations or equivalent implementations made in accordance with the patent scope and patent specification of the present utility model should be covered by the patent scope of the present utility model.

[0087] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the claims of this utility model.

Claims

1. A drainage device for a freezing or refrigeration equipment, comprising: A water collection tank has four side walls and a bottom plate combined to form a rectangle, with each side wall serving as one side of the rectangle. The water collection tank is used to collect condensate from a freezing or refrigeration unit. A housing, detachably disposed within the water collection tank; A control unit is located in the housing; A drain pump, disposed within the housing and located inside the water collection tank, and electrically connected to the control unit, the drain pump having a drain pipe extending outside the water collection tank; and A water level detection unit is disposed in the housing and located in the water collection tank, and is electrically connected to the control unit. The water level detection unit has a water level detection float. Its features are: The housing has two mounting portions, which are detachably mounted on two adjacent side walls of the water collection tank. The housing has a wall with two sides that abut against the two side walls of the water collection tank, partially enclosing an internal space within the water collection tank. The control unit, the drain pump, and the water level detection unit are all located within this internal space. The bottom of the wall has multiple recessed openings that are spaced apart from each other. The bottom of the wall abuts against the base plate, and the multiple openings form multiple channels for water to pass through with the base plate, allowing water in the water collection tank to enter the internal space through the multiple openings.

2. The drainage device for the freezing or refrigeration equipment according to claim 1, characterized in that: Each of the two adjacent side walls of the water collection tank has a hanging part. The two mounting parts of the housing are hook-shaped and can be detachably hung on the two side walls by passing through the hanging parts.

3. The drainage device for the freezing or refrigeration equipment according to claim 1, characterized in that: The housing has a waterproof box, a first frame and a second frame. The control unit is located inside the waterproof box. The first frame is detachably located in the waterproof box. The water level detection unit is located in the first frame. The second frame is detachably located in the waterproof box. The drainage pump is located in the second frame. The enclosure is formed by extending downward from the edges of the first frame and the second frame and joining them together.

4. The drainage device for the refrigeration or freezing equipment according to claim 3, characterized in that: The first frame and the waterproof box are detachably connected by a hook and a slot structure, and the second frame and the waterproof box are detachably connected by a hook and a slot structure.

5. The drainage device for the refrigeration or freezing equipment according to claim 3, characterized in that: Each of the two adjacent side walls of the water collection tank has a hanging part. The two mounting parts are located in the waterproof box and are in the shape of hooks. They can be detachably hung on the two hanging parts of the two side walls.

6. The drainage device for the freezing or refrigeration equipment according to claim 1, characterized in that: The wall also has a water inlet with a cross-sectional area larger than that of the channel, and a filter screen is installed at the water inlet.

7. The drainage device for the refrigeration or freezing equipment according to claim 1, characterized in that: The side of the wall abuts against the opposite side wall of the water collection trough, thus partially enclosing an internal space within the water collection trough.

8. The drainage device for the refrigeration or freezing equipment according to claim 1, characterized in that: The side of the wall abuts against the two adjacent side walls of the water collection tank, thus partially enclosing an internal space within the water collection tank.

9. The drainage device for a refrigeration or freezing equipment according to claim 1, characterized in that: The water level detection unit also has an overflow detection float.

10. The drainage device for a refrigeration or freezing equipment according to claim 1, characterized in that: The water collection tank has a recessed groove on one side wall, and the drain pipe passes through the groove and exits the water collection tank.

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