Protection device for water flow switch of heat pump host

Abstract

The utility model discloses a protection device for a water flow switch of a heat pump main machine, which comprises a main body, the main body comprises two heat preservation shells which are detachably connected, a cavity for accommodating the water flow switch of the heat pump main machine is formed in the main body, and a drainage structure communicated with the cavity is arranged on the main body. The heat pump main machine water flow switch can be wrapped, it is ensured that the heat pump main machine water flow switch is not interfered by external factors during operation, condensate water of the heat pump main machine water flow switch is drained through the drainage structure, normal operation of a heat pump main machine is prevented from being affected by water leakage in the water flow switch, and production convenience and efficiency are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water flow system protection devices, and more specifically, to a protection device for a water flow switch of a heat pump host. Background Art

[0002] When the fluorine circuit and water circuit of the heat pump main unit are exchanging heat, the water flow switch will be installed on the water outlet pipe of the casing to monitor and control the flow of fluid, which plays a protective role to ensure the normal operation of the two-way heat supply unit. However, in harsh environments, the water flow switch will be affected by adverse factors, causing the water flow switch to fail. For example, in a low-temperature environment, the water flow switch may be affected by freezing, causing its components to be damaged or fail. Condensed water enters the water flow switch, causing a short circuit and equipment damage. In addition, there may be a risk of water leakage at the connection between the water flow switch and the water outlet pipe, which may have an adverse effect on the normal operation of the equipment. When water leakage occurs, water is easy to splash onto the electrical box or sensitive electronic components, which may cause equipment failure or safety problems.

[0003] The existing water flow switch of the heat pump host relies on the connection with the water outlet pipe through the thread. During installation, the water flow switch and the water outlet pipe have no limit position. During the installation process, the water flow switch and the water outlet pipe may have a large deflection angle, which affects its normal detection and signal output. The original solution is to use sponge packaging for protection, which has problems such as poor insulation effect, splashing water to the electrical box when leaking, no positioning during installation, low production efficiency, and insufficient aesthetics. The above problems will cause the water flow switch to fail and affect the normal operation of the machine, causing the unit to be returned for repair, which involves a large repair cost and is not worth the loss.

[0004] Prior art CN207865738U discloses a solar heat pump use protection device, including a main body insulation layer, a foam insulation layer is connected inside the main body insulation layer, and a strong spring is installed outside the main body insulation layer, the outer end of the strong spring is connected to the main body protection layer, a left end fixing sleeve is installed outside the left end of the main body protection layer, and the main body insulation layer is arranged inside the right side of the left end fixing sleeve, a right end fixing sleeve is installed outside the right side of the main body protection layer, and a foam insulation layer is connected inside the left side of the right end fixing sleeve, a water pipe through hole is arranged inside the right end fixing sleeve, and a foam insulation layer is connected to the left side of the water pipe through hole. The solar heat pump use protection device effectively protects the solar water tank using the solar heat pump system, prevents the water tank from being damaged by being hit by foreign objects, is easy to install, and can effectively reduce the speed of the internal water temperature drop, prevents the water tank from being frozen and cracked in low temperature weather, and improves the user's use effect. When the technical solution cannot drain the internal condensed water. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes a protection device for the water flow switch of the heat pump host, which can protect the water flow switch of the heat pump host to prevent it from being interfered by external factors, and at the same time can drain the condensed water to prevent the water flow switch from being affected and causing failure.

[0006] To achieve the above-mentioned purpose, the utility model provides a protective device for a water flow switch of a heat pump host, comprising a main body, wherein the main body comprises two detachably connected thermal insulation shells, a cavity for accommodating the water flow switch of the heat pump host is formed in the main body, and a drainage structure connected to the cavity is provided on the main body.

[0007] In the present technical solution, two parts of the thermal insulation shell wrap the water flow switch of the heat pump main unit from the left and right sides to protect it. The water outlet pipe of the water flow switch is arranged corresponding to the drainage structure. The condensed water of the water flow switch is discharged under the drainage structure to prevent the condensed water from freezing in a low temperature environment. At the same time, it prevents water leakage at the connection between the water flow switch and the water outlet pipe, so that the condensed water enters the water flow switch and causes a short circuit and equipment damage.

[0008] As a preferred solution, in order to drain the condensed water of the water flow switch, the interior of the thermal insulation shell is formed with a groove structure, and the groove structures of the two thermal insulation shells together form the cavity, and semicircular grooves connected to the groove structures are respectively arranged on both sides of the thermal insulation shell, and the semicircular grooves of each thermal insulation shell are respectively arranged correspondingly, and the semicircular grooves of one thermal insulation shell and the corresponding semicircular grooves of the other thermal insulation shell together form the drainage structure. When the two parts of the thermal insulation shells are detachably connected to each other, the semicircular grooves of each thermal insulation shell are combined to form a drainage structure, and the outlet pipe extends into the cavity through the drainage structure and is connected to the water flow switch. The connection between the water flow switch and the outlet pipe is located at the top of the drainage structure, and the condensed water flows out of the outside of the thermal insulation shell from top to bottom through the drainage structure.

[0009] As a preferred solution, in order to make the condensed water flow smoothly, the drainage structure is inclined downward from one end connected to the cavity toward the other end of the drainage structure connected to the outside.

[0010] As a preferred solution, in order to provide support for the outlet pipe to avoid excessive bending of the outlet pipe, an angle B is formed between the center line of the drainage structure and the center line of the main body, and the angle B is 30° to 40°.

[0011] As a preferred solution, in order to ensure the reliability of the buckling of the left and right parts of the thermal insulation shell, each of the thermal insulation shells is provided with a positioning structure, and the positioning structures of each thermal insulation shell are adapted to each other. When the left and right parts of the thermal insulation shell are buckled together, the positioning structures of each thermal insulation shell are embedded in each other to prevent the two parts of the thermal insulation shell from being dislocated after being affected by external force.

[0012] As a preferred solution, the positioning structure includes positioning ribs and positioning grooves arranged on both sides of each of the thermal insulation shells, the positioning ribs and positioning grooves are adapted to each other, the positioning ribs of one of the thermal insulation shells extend into the positioning groove of another of the thermal insulation shells for limiting the position of each of the thermal insulation shells, one side of the thermal insulation shell is the positioning rib, and the other side of the thermal insulation shell is the positioning groove, and the positioning ribs of each of the thermal insulation shells respectively extend into the positioning groove of the opposite thermal insulation shell.

[0013] As a preferred solution, since the water flow switch of the heat pump host is an axially symmetrical structure and the left and right sides have the same structure, the two insulation shells have the same structure to wrap the water flow switch of the heat pump host, and the two insulation shells are mirror-imaged and interlocked.

[0014] As a preferred solution, in order to adapt to the appearance structure of the water flow switch of the heat pump host, the cavity passes through the bottom of the main body, and a through hole communicating with the cavity is horizontally passed through the bottom of the main body.

[0015] As a preferred solution, in order to further fix the two parts of the thermal insulation shell and prevent the thermal insulation shell from spreading out, it is necessary to fix the outer periphery of the two parts of the thermal insulation shell with the help of fixing parts, so the outer periphery of each of the thermal insulation shells is respectively provided with at least one fixing groove, and the fixing grooves of each of the thermal insulation shells are arranged corresponding to each other, and then the thermal insulation shell is further fixed by clamping the strip-shaped fixing parts in the fixing grooves, and the fixing grooves can limit the up and down movement of the fixing parts to prevent the fixing parts from slipping out.

[0016] As a preferred solution, in order to firmly fix the heat-insulating outer shell, the two fixing grooves are respectively arranged at two ends of the heat-insulating outer shell.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model wraps the water flow switch of the heat pump host through the detachable connection of the two parts of the heat insulation shell and further fixes it through the fixing parts, which is convenient to assemble and has good reliability.

[0019] 2. The utility model protects the water flow switch of the heat pump host disposed in the cavity by means of a heat-insulating shell, thereby preventing the external environment from affecting the operation of the water flow switch.

[0020] 3. Drain the condensed water of the water flow switch through the drainage structure to prevent the condensed water from flowing into the water flow switch or freezing the condensed water and affecting the normal operation of the water flow switch.

[0021] 4. The water outlet pipe enters the cavity through the drainage structure and is connected to the water flow switch, and the drainage structure provides support for the water outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the protection device of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the thermal insulation shell;

[0024] Figure 3 It is a cross-sectional view of the protective device of the utility model;

[0025] Figure 4 yes Figure 3 A partial schematic diagram of part A.

[0026] In the figure: a heat-insulating shell 1; a cavity 101; a positioning rib 102; a positioning groove 103; a drainage structure 2; a semicircular groove 201; a fixing groove 3; and a through hole 4. DETAILED DESCRIPTION

[0027] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0030] Embodiment 1:

[0031] like Figures 1 to 4 As shown, a protection device for a water flow switch of a heat pump host is provided, comprising a main body, the main body comprising two detachably connected insulation shells 1, a cavity 101 for accommodating the water flow switch of the heat pump host is formed in the main body, and a drainage structure 2 connected to the cavity 101 is provided on the main body.

[0032] In this embodiment, the heat-insulating shells 1 are provided with buckles that are engaged with each other, and the two heat-insulating shells 1 are fixed by the buckles.

[0033] Specifically, the heat-insulating shell 1 is made of waterproof and heat-insulating material. In this embodiment, the waterproof and heat-insulating material can prevent rainwater from splashing into the main body and causing damage to the circuit of the water flow switch of the heat pump host.

[0034] In this embodiment, the insulation shell 1 is made of high foamed polypropylene (EPP), which is a high-crystalline polymer and gas composite material with excellent performance. With its unique and superior performance, it has become the fastest growing environmentally friendly new pressure-resistant buffer insulation material. Polypropylene foam beads (EPP) use PP as the main raw material and are made into foam beads using physical foaming technology. The material has the following characteristics: 1. Excellent heat resistance: The maximum operating temperature is 130°C, which is much higher than the operating temperature of EPS and EPE. 2. Good dimensional stability: EPP has a small thermal shrinkage rate and stable dimensions. 3. Light weight: Due to the small relative density of EPP, it is lighter than other foam materials at the same foaming ratio. 4. Excellent buffering performance: EPP has very good toughness and appropriate hardness, and has excellent buffering properties within a large load range. 5. Good low temperature characteristics: At -40°C, it still has good buffering performance. 6. A wide range of foaming multiples: from a low multiple of 11 times to a high foaming multiple of 45 times, and all have good buffering and insulation properties. 7. Thermal insulation and floating properties: EPP is a closed-cell independent foam structure with low thermal conductivity and low water absorption, and can be used as thermal insulation and floating materials. 8. Excellent oil resistance and chemical resistance. 9. Non-toxic, does not contain toxic foaming agents and additives, and is harmless to human physiology. 10. High energy absorption: EPP has strong toughness and can be used repeatedly without fatigue. 11. Environmental protection: EPP is a non-cross-linked foam, non-toxic, degradable, recyclable, and saves energy and resources. 12. Long service life, widely used in logistics materials, can be recycled and reused many times.

[0035] In this embodiment, polypropylene particles are added to auxiliary agents such as a foaming agent, a stabilizer, and a lubricant to form a mixture after mixing. The mixture is then fed into an extruder and extruded under high temperature and high pressure. Compressed air is added at the outlet of the extruder to rapidly expand the mixture at the outlet to form foamed polypropylene. Next, the foamed polypropylene is fed into a cooler to rapidly cool and solidify. In the cooler, the density and porosity of the polypropylene foam are controlled to meet the required requirements by controlling the temperature and speed. Finally, the solidified high-foaming polypropylene foam is cut, formed, processed, and other processes to form the thermal insulation shell 1.

[0036] In this embodiment, if Figure 1 , 2As shown, the cavity 101 passes through the bottom of the main body, and a through hole 4 communicating with the cavity 101 passes through the bottom of the main body horizontally.

[0037] Specifically, the interior of the thermal insulation shell 1 is a groove structure, and the groove structures of the two thermal insulation shells 1 together form the cavity 101. Semicircular grooves 201 connected to the groove structures are respectively arranged on both sides of the thermal insulation shell 1, and the semicircular grooves 201 of each thermal insulation shell 1 are respectively arranged correspondingly, and the semicircular grooves 201 of one thermal insulation shell 1 and the corresponding semicircular grooves 201 of the other thermal insulation shell 1 together form the drainage structure 2. In this embodiment, the groove structure is adapted to the external structure of the water flow switch of the heat pump host.

[0038] In this embodiment, the two semicircular grooves 201 of each insulation shell 1 are combined to form a drainage structure 2, which corresponds to the connection between the water flow switch and the water outlet pipe, and can drain the condensed water generated and flow out of the main body along the drainage structure 2.

[0039] Specifically, the semicircular groove 201 forms an angle B with the vertical direction of the heat-insulating shell 1, and the angle B is 45 degrees. In this embodiment, the angle B can meet the drainage requirements of condensed water and provide support for the water outlet pipe to avoid bending of the water outlet pipe.

[0040] Specifically, the cavity 101 is adapted to the structure of the water flow switch of the heat pump host, and a gap of 1mm-2mm is formed between the cavity 101 and the water flow switch of the heat pump host. In this embodiment, since the water flow switch is made of metal, the gap can provide a compatible space for the water flow switch to expand and contract due to heat.

[0041] Specifically, the two heat-insulating shells 1 have the same structure, and the two heat-insulating shells 1 are mirror-imaged and interlocked.

[0042] In this embodiment, the two heat-insulating shells 1 are buckled together from the left and right sides of the water flow switch of the heat pump host, which is convenient for assembly.

[0043] Embodiment 2:

[0044] This embodiment is similar to Embodiment 1, except that, in this embodiment, Figures 2 to 4 As shown, each of the heat-insulating shells 1 is provided with a positioning structure, and the positioning structures of each of the heat-insulating shells 1 are adapted to each other.

[0045] Specifically, the positioning structure includes positioning strips 102 and positioning grooves 103 arranged on both sides of each of the thermal insulation shells 1, wherein the positioning strips 102 of one of the thermal insulation shells 1 extend into the positioning groove 103 of another thermal insulation shell 1 to limit the position of each of the thermal insulation shells 1.

[0046] In this embodiment, the structures of the positioning strips 102 and the positioning grooves 103 are adapted. When the two heat-insulating shells 1 are clamped and fixed by the positioning strips 102 and the positioning grooves 103, the two heat-insulating shells 1 can be positioned to prevent them from shifting.

[0047] Embodiment 3:

[0048] This embodiment is similar to Embodiment 1, except that, in this embodiment, Figure 1 , 2 As shown, at least one fixing groove 3 is respectively provided on the outer periphery of each of the heat-insulating shells 1 , and the fixing grooves 3 of each of the heat-insulating shells 1 are arranged corresponding to each other. The fixing member is a belt-shaped structure, and the fixing member is clamped in the fixing groove 3 .

[0049] In this embodiment, the fixing member may be a cable tie.

[0050] Specifically, the two fixing grooves 3 are respectively arranged at two ends of the heat-insulating outer shell 1 .

[0051] In this embodiment, the fixing grooves 3 of each heat-insulating outer shell 1 cooperate to form an annular groove for installing the tie.

[0052] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0053] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A protective device for a water flow switch of a heat pump host, characterized in that: The invention comprises a main body, the main body comprising two detachably connected heat-insulating shells (1), a cavity (101) for accommodating a water flow switch of a main unit of a heat pump is formed in the main body, and a drainage structure (2) communicating with the cavity (101) is provided on the main body.

2. A protection device for a water flow switch of a heat pump host according to claim 1, characterized in that: The interior of the heat-insulating outer shell (1) is in the form of a groove structure, the groove structures of the two heat-insulating outer shells (1) together form the cavity (101), semicircular grooves (201) connected to the groove structures are respectively arranged on both sides of the heat-insulating outer shell (1), and the semicircular grooves (201) of each heat-insulating outer shell (1) are respectively arranged correspondingly, and the semicircular grooves (201) of one heat-insulating outer shell (1) and the corresponding semicircular grooves (201) of the other heat-insulating outer shell (1) together form the drainage structure (2).

3. A protection device for a water flow switch of a heat pump host according to claim 2, characterized in that: The drainage structure (2) is inclined downward from one end connected to the cavity (101) toward one end of the drainage structure (2) connected to the outside.

4. A protection device for a water flow switch of a heat pump host according to claim 3, characterized in that: An angle B is formed between the center line of the drainage structure (2) and the center line of the main body, and the angle B is 30° to 40°.

5. A protection device for a water flow switch of a heat pump host according to claim 1, characterized in that: Each of the heat-insulating outer shells (1) is provided with a positioning structure, and the positioning structures of each of the heat-insulating outer shells (1) are adapted to each other.

6. A protection device for a water flow switch of a heat pump host according to claim 5, characterized in that: The positioning structure comprises positioning ribs (102) and positioning grooves (103) arranged on both sides of each of the thermal insulation shells (1), wherein the positioning ribs (102) of one of the thermal insulation shells (1) extend into the positioning groove (103) of another of the thermal insulation shells (1) to limit the position of each of the thermal insulation shells (1).

7. A protection device for a water flow switch of a heat pump host according to any one of claims 1 to 6, characterized in that: The two heat-insulating outer shells (1) have the same structure, are arranged in a mirror-image manner and are interlocked.

8. A protection device for a water flow switch of a heat pump host according to claim 1, characterized in that: The cavity (101) passes through the bottom of the main body, and a through hole (4) communicating with the cavity (101) passes through the bottom of the main body horizontally.

9. A protection device for a water flow switch of a heat pump host according to claim 1, characterized in that: The outer circumference of each of the heat-insulating outer shells (1) is respectively provided with at least one fixing groove (3), the fixing grooves (3) of each of the heat-insulating outer shells (1) are arranged correspondingly, and a fixing piece is arranged in the fixing groove (3).

10. A protection device for a water flow switch of a heat pump host according to claim 9, characterized in that: The two fixing grooves (3) are respectively arranged at two ends of the heat-insulating outer shell (1).

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