Water purifier and noise reduction and heat dissipation box of booster pump of water purifier

Abstract

The utility model relates to the technical field of water purifiers, particularly provides a water purifier and a noise reduction and heat dissipation box of a booster pump of the water purifier, and aims to solve the problem that a noise reduction box of a booster pump of an existing water purifier is not favorable for heat dissipation of the booster pump. In order to achieve the purpose, the noise reduction and heat dissipation box of the booster pump of the water purifier comprises a shell, an inner cavity of the shell is used for installing the booster pump, the shell comprises a heat conduction layer, a heat dissipation layer and a noise reduction layer, and the heat conduction layer, the heat dissipation layer and the noise reduction layer are sequentially distributed from inside to outside in the thickness direction of the shell. A cooling channel communicated with the outside of the shell is arranged between the inner wall and the outer wall of the heat dissipation layer; the heat conduction layer is used for conducting heat generated by the booster pump to the heat dissipation layer, and the heat dissipation layer is used for conveying the heat to the outside of the shell through fluid flowing in the cooling channel. Through the arrangement, the noise reduction and heat dissipation box not only can realize good noise reduction of the booster pump, but also can realize good heat dissipation of the booster pump.

Description

Technical Field

[0001] The utility model relates to the technical field of water purifiers, and specifically provides a noise reduction and heat dissipation box of a water purifier and a booster pump thereof. Background Art

[0002] As people's living standards improve and their attention to drinking water health increases, water purifiers have been accepted and recognized by more and more users. As an important component of reverse osmosis water purifiers, booster pumps provide power for water molecules to pass through reverse osmosis membranes. However, when the booster pump is working, it will generate a lot of noise, affecting the user experience.

[0003] In order to reduce noise, the common practice is to wrap a plastic noise reduction box on the outside of the booster pump and paste sound-absorbing cotton on the noise reduction box. The plastic box can hinder the spread of noise, and the sound-absorbing cotton can absorb part of the noise, so it has a good noise reduction effect. However, during the operation of the booster pump, especially after working for a long time, a lot of heat will be generated. Wrapping the plastic noise reduction box on the outside of the booster pump and pasting sound-absorbing cotton on the noise reduction box is not conducive to heat dissipation and will affect the service life of the booster pump.

[0004] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the above technical problem, namely, to solve the problem that the noise reduction box of the booster pump of the existing water purifier is not conducive to the heat dissipation of the booster pump.

[0006] In a first aspect, the utility model provides a noise reduction and heat dissipation box for a booster pump of a water purifier, the noise reduction and heat dissipation box comprising a shell, the inner cavity of the shell being used to install the booster pump, the shell comprising a heat conductive layer, a heat dissipation layer and a noise reduction layer, the heat conductive layer, the heat dissipation layer and the noise reduction layer being distributed in sequence from the inside to the outside along the thickness direction of the shell, a cooling channel connected to the outside of the shell is provided between the inner wall and the outer wall of the heat dissipation layer; the heat conductive layer is used to conduct the heat generated by the booster pump to the heat dissipation layer, and the heat dissipation layer is used to transport the heat to the outside of the shell with the aid of the fluid flowing in the cooling channel.

[0007] In the preferred technical solution of the above-mentioned noise reduction heat dissipation box, the noise reduction layer is a sound insulation material layer.

[0008] In the preferred technical solution of the above-mentioned noise reduction heat dissipation box, the noise reduction layer includes a substrate, and a sealed cavity is formed between the inner wall and the outer wall of the substrate.

[0009] In the preferred technical solution of the above-mentioned noise reduction heat dissipation box, the noise reduction layer also includes a sound insulation material layer located between the inner wall of the substrate and the outer wall of the heat dissipation layer and bonded to the two, and / or a sound insulation material layer bonded to the outer wall of the substrate.

[0010] In the preferred technical solution of the above-mentioned noise reduction and heat dissipation box, the sound insulation material layer is made of sound insulation cotton.

[0011] In the preferred technical solution of the above-mentioned noise reduction heat dissipation box, the heat conductive layer is made of copper, aluminum or graphite.

[0012] When the above technical solution is adopted, the noise reduction and heat dissipation box of the booster pump of the water purifier includes a shell, the inner cavity of the shell is used to install the booster pump, the shell includes a heat conductive layer, a heat dissipation layer and a noise reduction layer, the heat conductive layer, the heat dissipation layer and the noise reduction layer are distributed in sequence from the inside to the outside along the thickness direction of the shell, and a cooling channel connected to the outside of the shell is arranged between the inner wall and the outer wall of the heat dissipation layer; the heat conductive layer is used to conduct the heat generated by the booster pump to the heat dissipation layer, and the heat dissipation layer is used to transport the heat to the outside of the shell with the help of the fluid flowing in the cooling channel.

[0013] Through such a configuration, the noise reduction heat dissipation box of the utility model can not only achieve noise reduction through the noise reduction layer, but also conduct the heat generated by the booster pump when working to the cooling channel of the heat dissipation layer through the heat conduction layer, and transport the heat to the outside of the shell through the fluid flowing in the cooling channel, thereby achieving rapid cooling of the booster pump. The heat absorption area is increased by the configuration of the heat conduction layer, and the heat dissipation efficiency of the booster pump can be improved.

[0014] Specifically, the noise reduction layer is a sound insulation material layer.

[0015] By setting the noise reduction layer as a sound insulation material layer, noise reduction can be achieved in a manner that the sound insulation material layer blocks the propagation of noise and absorbs part of the noise.

[0016] Preferably, the noise reduction layer comprises a substrate, and a sealed cavity is formed between an inner wall and an outer wall of the substrate.

[0017] Through such an arrangement, the sound waves of the noise propagating into the sealed cavity can be reflected on the surface of the sealed cavity, and some sound waves of the noise are superimposed out of phase in the sealed cavity and weakened or even disappear, thereby achieving noise reduction.

[0018] Preferably, the noise reduction layer further comprises a sound insulation material layer located between and bonded to the inner wall of the substrate and the outer wall of the heat dissipation layer, and / or a sound insulation material layer bonded to the outer wall of the substrate.

[0019] Through such an arrangement, part of the noise sound waves are further blocked and absorbed by the sound insulation material layer, thereby further improving the noise reduction effect.

[0020] In a second aspect, the utility model further provides a water purifier, comprising the noise reduction and heat dissipation box described in any one of the above technical solutions.

[0021] It should be noted that the water purifier has all the technical effects of the noise reduction and heat dissipation box described in any of the above technical solutions, which will not be repeated here.

[0022] In the preferred technical solution of the above water purifier, the inlet of the cooling channel is connected to the wastewater outlet of the reverse osmosis filter element of the water purifier.

[0023] Through such an arrangement, when the water purifier is working, the waste water generated by the water purifier flows through the cooling channel of the noise reduction heat sink and is then discharged. The discharged waste water can absorb a large amount of heat generated by the booster pump and take the heat away. There is no need to provide a separate cooling medium for the cooling channel, thereby achieving the reuse of waste water.

[0024] In the preferred technical solution of the above water purifier, the inlet of the cooling channel is connected to the outlet of the booster pump, and the outlet of the cooling channel is connected to the inlet of the reverse osmosis filter element of the water purifier.

[0025] Through such an arrangement, at least a portion of the water pressurized by the booster pump absorbs the heat generated by the booster pump and heats up when flowing through the cooling channel. The heated water flows to the inlet of the reverse osmosis filter element, so that the temperature of the water entering the reverse osmosis filter element is increased, which can enable the reverse osmosis filter element to maintain good filtering performance, eliminate the adverse effects of low temperature on the filtering performance of the reverse osmosis filter element, and increase the output of pure water.

[0026] In the preferred technical solution of the above-mentioned water purifier, the water purifier also includes a return pipe, the inlet end and the outlet end of the return pipe are respectively connected to the outlet of the boost pump and the water inlet pipe of the boost pump, the cooling channel is connected in series to the return pipe, and the return pipe is also connected in series with a one-way valve, and the one-way valve is connected in the direction from the inlet end to the outlet end of the return pipe.

[0027] Through such an arrangement, at least a portion of the water pressurized by the booster pump absorbs the heat generated by the booster pump and heats up when flowing through the cooling channel. The heated water flows to the water inlet pipe of the booster pump 2, so that the temperature of the water flowing into the booster pump and entering the reverse osmosis filter element is increased, which can enable the reverse osmosis filter element to maintain good filtering performance and eliminate the adverse effects of low temperature on the filtering performance of the reverse osmosis filter element. The setting of the one-way valve can ensure that the water flows smoothly in the set direction in the cooling channel, thereby ensuring the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0029] Figure 1It is a half-section view of a noise reduction heat dissipation box of a booster pump of a water purifier according to an embodiment of the utility model;

[0030] Figure 2 It is a schematic diagram of the piping system of the water purifier of the first embodiment of the utility model;

[0031] Figure 3 It is a schematic diagram of the piping system of the water purifier of the second embodiment of the utility model.

[0032] List of reference numerals:

[0033] 1. Noise reduction heat dissipation box; 11. First half shell; 111. First heat conduction layer; 112. First heat dissipation layer; 1121. First substrate a; 1122. First cooling channel; 11221. First cooling channel inlet; 11222. First cooling channel outlet; 113. First hollow layer; 1131. First substrate b; 1132. First sealed cavity; 114. First sound insulation material layer; 115. First annular connecting plate; 12. Second half shell; 121. Second heat conduction layer; 122. Second heat dissipation layer; 1221. Second substrate a; 1222. Second cooling channel; 12221. The second cooling channel inlet; 12222, the second cooling channel outlet; 123, the second hollow layer; 1231, the second substrate b; 1232, the second sealed cavity; 124, the second sound insulation material layer; 125, the second annular connecting plate; 1261, the first through hole; 1262, the second through hole; 13, the inner cavity; 2, the booster pump; 31, the pre-filter element; 32, the reverse osmosis filter element; 33, the post-filter element; 41, the first connecting pipe; 42, the second connecting pipe; 43, the third connecting pipe; 44, the fourth connecting pipe; 45, the fifth connecting pipe; 46, the sixth connecting pipe; 51, the first one-way valve; 52, the second one-way valve. DETAILED DESCRIPTION

[0034] First, those skilled in the art should understand that the embodiments described below are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0035] It should be noted that in the description of the utility model, the terms "upper", "lower", "left", "right" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", "fourth", "fifth" and "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a direct connection, or an indirect connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Based on the problem mentioned in the background technology that the noise reduction box of the existing booster pump of the water purifier is not conducive to the heat dissipation of the booster pump, the utility model provides a noise reduction and heat dissipation box of the booster pump of the water purifier, the noise reduction and heat dissipation box of the booster pump of the water purifier comprises a shell, the inner cavity of the shell is used to install the booster pump, the shell comprises a heat conductive layer, a heat dissipation layer and a noise reduction layer, the heat conductive layer, the heat dissipation layer and the noise reduction layer are distributed in sequence from the inside to the outside along the thickness direction of the shell, a cooling channel connected to the outside of the shell is arranged between the inner wall and the outer wall of the heat dissipation layer; the heat conductive layer is used to conduct the heat generated by the booster pump to the heat dissipation layer, and the heat dissipation layer is used to transport the heat to the outside of the shell with the help of the fluid flowing in the cooling channel.

[0038] Through such a configuration, the noise reduction heat dissipation box of the utility model can not only achieve noise reduction through the noise reduction layer, but also conduct the heat generated by the booster pump when working to the cooling channel of the heat dissipation layer through the heat conduction layer, and transport the heat to the outside of the shell through the fluid flowing in the cooling channel, thereby achieving rapid cooling of the booster pump. The heat absorption area is increased by the configuration of the heat conduction layer, and the heat dissipation efficiency of the booster pump can be improved.

[0039] Refer to the following Figure 1 The noise reduction and heat dissipation box of the booster pump of the water purifier of the utility model is introduced in detail. Figure 1 It is a half-section view of a noise reduction heat dissipation box of a booster pump of a water purifier according to an embodiment of the utility model.

[0040] like Figure 1 As shown, the noise reduction and heat dissipation box 1 includes a first half shell 11 and a second half shell 12. The lower end of the first half shell 11 has an opening, and the upper end of the second half shell 12 has an opening. The opening at the lower end of the first half shell 11 is snapped with the opening at the upper end of the second half shell 12, so that the first half shell 11 and the second half shell 12 form a shell of the noise reduction and heat dissipation box 1, and an inner cavity 13 for installing a boost pump is formed in the shell.

[0041] The first half shell 11 includes a first heat conducting layer 111, a first heat dissipation layer 112 and a first noise reduction layer which are sequentially distributed from the inside to the outside along the thickness direction thereof. The first heat conducting layer 111 is made of a material with good thermal conductivity such as copper, aluminum or graphite. The first heat dissipation layer 112 includes a first substrate a1121, and a first cooling channel 1122 is provided between the inner wall and the outer wall of the first substrate a1121. The first noise reduction layer includes a first hollow layer 113 and a first sound insulation material layer 114 which are sequentially distributed from the inside to the outside along the thickness direction of the first half shell 11. The first hollow layer 113 includes a first substrate b1131, and a first sealed cavity 1132 is formed between the inner wall and the outer wall of the first substrate b1131. Preferably, the first sealed cavity 1132 is a vacuum cavity. The first sound insulation material layer 114 is made of sound insulation cotton. The first half shell 11 is provided with a first cooling channel inlet 11221 and a first cooling channel outlet 11222, which are respectively connected to the two ends of the first cooling channel 1122 and pass through the outer wall of the first half shell 11. The lower edge of the first base plate b1131 extends outward in the horizontal direction to form a first annular connecting plate 115.

[0042] The second half shell 12 includes a second heat-conducting layer 121, a second heat dissipation layer 122 and a second noise reduction layer, which are sequentially distributed from the inside to the outside along the thickness direction thereof. The second heat-conducting layer 121 is made of a material with good thermal conductivity such as copper, aluminum or graphite. The second heat dissipation layer 122 includes a second substrate a1221, and a second cooling channel 1222 is provided between the inner wall and the outer wall of the second substrate a1221. The second noise reduction layer includes a second hollow layer 123 and a second sound insulation material layer 124, which are sequentially distributed from the inside to the outside along the thickness direction of the second half shell 12. The second hollow layer 123 includes a second substrate b1231, and a second sealed cavity 1232 is formed between the inner wall and the outer wall of the second substrate b1231. Preferably, the second sealed cavity 1232 is a vacuum cavity. The second sound insulation material layer 124 is made of sound insulation cotton. The second half shell 12 is provided with a second cooling channel inlet 12221 and a second cooling channel outlet 12222, which are respectively connected to the two ends of the second cooling channel 1222 and pass through the outer wall of the second half shell 12. The upper edge of the second substrate b1231 extends outward in the horizontal direction around to form a second annular connecting plate 125. The lower part of the second half shell 12 is provided with a first through hole 1261 and a second through hole 1262 that penetrates along the thickness direction thereof. The first through hole 1261 and the second through hole 1262 are respectively used for the water inlet pipe and the water outlet pipe of the booster pump installed in the inner cavity 13 to pass through. The second half shell 12 is also provided with a third through hole (not shown in the figure) that penetrates along the thickness direction thereof, and the third through hole is used for the cable of the booster pump installed in the inner cavity 13 to pass through.

[0043] During installation, the water inlet pipe, the water outlet pipe and the cable of the boost pump are respectively passed through the first through hole 1261, the second through hole 1262 and the third through hole along the direction from the inside to the outside of the second half shell 12, a part of the boost pump is contained in the second half shell 12, the first half shell 11 is sleeved on the other part of the boost pump and is buckled with the second half shell 12, and the first annular connecting plate 115 and the second annular connecting plate 125 are fixedly connected. The first cooling channel inlet 11221 and the second cooling channel inlet 12221 are connected to the outlet of the cooling fluid supply device. For example, the cooling fluid supply device is a fan, the air flow is used as the cooling fluid, and the first cooling channel inlet 11221 and the second cooling channel inlet 12221 are connected to the air outlet of the fan. For another example, the cooling fluid supply device is a water pump, the water flow is used as the cooling fluid, and the first cooling channel inlet 11221 and the second cooling channel inlet 12221 are connected to the water outlet of the water pump.

[0044] During use, the booster pump generates heat and noise, and the heat is transferred to the first heat dissipation layer 112 and the second heat dissipation layer 122 through the first heat conductive layer 111 and the second heat conductive layer 121, respectively. The cooling fluid flowing through the first cooling channel 1122 absorbs the heat transferred from the first heat conductive layer 111 and transfers part of the heat to the outside of the noise reduction heat dissipation box 1, and the cooling fluid flowing through the second cooling channel 1222 absorbs the heat transferred from the second heat conductive layer 121 and transfers part of the heat to the outside of the noise reduction heat dissipation box 1. The first heat conductive layer 111, the first heat dissipation layer 112, the second heat conductive layer 121, and the second heat dissipation layer 122 have a certain blocking effect on the noise transmitted to the outside of the noise reduction heat dissipation box 1. When the noise is transmitted to the first noise reduction layer and the second noise reduction layer, the first noise reduction layer and the second noise reduction layer can largely block the noise from propagating outward, thereby achieving the effect of noise reduction. Specifically, when the noise is transmitted to the first hollow layer 113 and the second hollow layer 123, part of the sound waves are reflected on the surface of the first sealed cavity 1132 and the second sealed cavity 1232, and part of the sound waves of the noise are superimposed out of phase in the sealed cavity and weakened or even disappear. The residual noise passing through the first hollow layer 113 and the second hollow layer 123 is further blocked by the first sound insulation material layer 114 and the second sound insulation material layer 124, respectively, thereby achieving a good noise reduction effect.

[0045] Therefore, the noise reduction and heat dissipation box 1 of the present invention can achieve good noise reduction for the booster pump and good heat dissipation for the booster pump.

[0046] It should be noted that the first sound insulation material layer 114 and the second sound insulation material layer 124 are made of sound insulation cotton, which is only a specific setting method and can be adjusted in actual applications. For example, the first sound insulation material layer 114 and the second sound insulation material layer 124 can be made of polyester fiber, foam or other suitable sound insulation materials. In addition, the first noise reduction layer includes a first hollow layer 113 and a first sound insulation material layer 114 which are sequentially distributed from the inside to the outside along the thickness direction of the first half shell 11, and the second noise reduction layer includes a second hollow layer 123 and a second sound insulation material layer 124 which are sequentially distributed from the inside to the outside along the thickness direction of the second half shell 12. This is only a more preferred setting method, and it can be adjusted in practical applications. For example, in a feasible setting method, the first noise reduction layer only includes the first hollow layer 113, and the second noise reduction layer only includes the second hollow layer 123; in another feasible setting method, the first noise reduction layer only includes the first sound insulation material layer 114, and the second noise reduction layer only includes the second sound insulation material layer 124; in a feasible setting method, the noise reduction layer includes a substrate, a sealed cavity is formed between the inner wall and the outer wall of the substrate, and the noise reduction layer also includes a sealing cavity located between the inner wall of the substrate and the outer wall of the heat dissipation layer and connected to the inner wall of the substrate and the heat dissipation layer. The first noise reduction layer comprises a first hollow layer 113 and a first sound insulation material layer adhered to the outer wall of the layer, exemplarily, the first noise reduction layer comprises a first hollow layer 113 and a first sound insulation material layer, the first hollow layer 113 comprises a first substrate b1131, a first sealed cavity 1132 is formed between the inner wall and the outer wall of the first substrate b1131, the first sound insulation material layer is arranged between the inner wall of the first substrate b1131 and the outer wall of the first heat dissipation layer 112 and adhered to the inner wall of the first substrate b1131 and the outer wall of the first heat dissipation layer 112, the second noise reduction layer comprises a second hollow layer 123 and a second sound insulation material layer, the second hollow layer 123 comprises a second substrate b1231, a second sealed cavity 1232 is formed between the inner wall and the outer wall of the second substrate b1231, the second sound insulation material layer is arranged between the inner wall of the second substrate b1231 and the outer wall of the second heat dissipation layer 122 and adhered to the inner wall of the second substrate b1231 and the outer wall of the second heat dissipation layer 122;In another more preferred arrangement, the noise reduction layer includes a substrate, a sealed cavity is formed between the inner wall and the outer wall of the substrate, the noise reduction layer also includes a sound insulation material layer located between the inner wall of the substrate and the outer wall of the heat dissipation layer and bonded to the inner wall of the substrate and the outer wall of the heat dissipation layer, and a sound insulation material layer bonded to the outer wall of the substrate. Exemplarily, the first noise reduction layer includes a first sound insulation material layer 114, a first hollow layer 113 and a third sound insulation material layer distributed in sequence from the inside to the outside along the thickness direction of the first half shell 11, the first hollow layer 113 includes a first substrate b1131, a first sealed cavity 1132 is formed between the inner wall and the outer wall of the first substrate b1131, the first sound insulation material layer 114 is bonded to the outer wall of the first substrate b1131, and the third sound insulation material layer is arranged in the first The inner wall of the first substrate b1131 is between the inner wall of the first heat dissipation layer 112 and is bonded to the inner wall of the first substrate b1131 and the outer wall of the first heat dissipation layer 112. The second noise reduction layer includes a second sound insulation material layer 124, a second hollow layer 123 and a fourth sound insulation material layer which are sequentially distributed from the inside to the outside along the thickness direction of the second half shell 12. The second hollow layer 123 includes a second substrate b1231. A second sealed cavity 1232 is formed between the inner wall and the outer wall of the second substrate b1231. The second sound insulation material layer 124 is bonded to the outer wall of the second substrate b1231. The fourth sound insulation material layer is arranged between the inner wall of the second substrate b1231 and the outer wall of the second heat dissipation layer 122 and is bonded to the inner wall of the second substrate b1231 and the outer wall of the second heat dissipation layer 122. ;

[0047] In another feasible embodiment, different from the above embodiment, referring to Figure 1 In the orientation shown, the noise reduction heat dissipation box includes a left-right symmetrical first half shell and a second half shell, which are buckled together to form the shell of the noise reduction heat dissipation box. Preferably, three semicircular notches are formed at corresponding positions of the first half shell and the second half shell at the edge of the opening, respectively. When the first half shell and the second half shell are buckled together, the three semicircular notches on the first half shell are buckled with the three semicircular notches on the second half shell to form a first through hole, a second through hole and a third through hole. In this way, the installation of the booster pump is more convenient.

[0048] In addition, the utility model also provides a water purifier, which includes the noise reduction and heat dissipation box of any one of the above embodiments.

[0049] Refer to the following Figure 2 and Figure 3 The water purifier of the utility model is introduced in detail. Figure 2 It is a schematic diagram of the piping system of the water purifier of the first embodiment of the utility model; Figure 3 It is a schematic diagram of the piping system of the water purifier of the second embodiment of the utility model.

[0050] In the first embodiment of the water purifier of the utility model, as Figure 2 As shown, the water purifier includes a noise reduction heat dissipation box 1, a booster pump 2, a pre-filter 31, a reverse osmosis filter 32 and a post-filter 33. The booster pump 2 is installed in the noise reduction heat dissipation box 1, the inlet of the booster pump 2 is connected to the tap water pipe (not shown in the figure) through the first connecting pipe 41, the first connecting pipe 41 forms the water inlet pipe of the booster pump 2, the outlet of the booster pump 2 is connected to the inlet of the reverse osmosis filter 32 through the second connecting pipe 42, the pure water outlet of the reverse osmosis filter 32 is connected to the water outlet (not shown in the figure) through the third connecting pipe 43, and the wastewater outlet of the reverse osmosis filter 32 is connected to the sewer (not shown in the figure) through the fourth connecting pipe 44. The pre-filter 31 is connected in series to the first connecting pipe 41, and the post-filter 33 is connected in series to the third connecting pipe 43. The inlet of the cooling channel of the noise reduction heat dissipation box 1 is connected to the upper half of the fourth connecting pipe 44 through the fifth connecting pipe 45, and the outlet of the cooling channel of the noise reduction heat dissipation box 1 is connected to the lower half of the fourth connecting pipe 44 through the sixth connecting pipe 46. The fifth connecting pipe 45 and the sixth connecting pipe 46 are respectively connected in series with a first check valve 51 and a second check valve 52. The first check valve 51 is connected along the fifth connecting pipe 45 toward the noise reduction heat sink 1, and the second check valve 52 is connected along the sixth connecting pipe 46 away from the noise reduction heat sink 1.

[0051] During operation, tap water is filtered through the pre-filter 31 and then enters the booster pump 2, and then flows into the reverse osmosis filter 32 after being pressurized by the booster pump. The pure water produced by the reverse osmosis filter 32 flows through the post-filter 33 along the third connecting pipe 43 and then flows out from the water outlet. The waste water produced by the reverse osmosis filter 32 flows into the fourth connecting pipe 44, and a part of the waste water flowing into the fourth connecting pipe 44 flows back to the fourth connecting pipe 44 through the fifth connecting pipe 45, the cooling channel of the noise reduction heat sink 1 and the sixth connecting pipe 46 and then flows into the sewer, and another part of the waste water flowing into the fourth connecting pipe 44 flows directly into the sewer through the fourth connecting pipe 44.

[0052] The noise reduction heat dissipation box 1 reduces the noise transmitted from the inside thereof and optimizes the user experience. The wastewater flowing through the cooling channel of the noise reduction heat dissipation box 1 absorbs the heat generated by the booster pump 2 and takes the heat out of the noise reduction heat dissipation box 1, thereby achieving effective heat dissipation of the booster pump 2 and recycling of the wastewater, without the need to separately set up a cooling fluid supply device for supplying cooling fluid to the cooling channel of the noise reduction heat dissipation box 1. The provision of the first one-way valve 51 and the second one-way valve 52 ensures that the wastewater can flow smoothly through the cooling channel of the noise reduction heat dissipation box 1.

[0053] In the second embodiment of the water purifier of the utility model, as Figure 3As shown, the water purifier includes a noise reduction and heat dissipation box 1, a booster pump 2, a pre-filter element 31, a reverse osmosis filter element 32 and a post-filter element 33. The booster pump 2 is installed in the noise reduction and heat dissipation box 1, the inlet of the booster pump 2 is connected to the tap water pipe (not shown in the figure) through the first connecting pipe 41, the outlet of the booster pump 2 is connected to the inlet of the reverse osmosis filter element 32 through the second connecting pipe 42, the pure water outlet of the reverse osmosis filter element 32 is connected to the water outlet (not shown in the figure) through the third connecting pipe 43, and the waste water outlet of the reverse osmosis filter element 32 is connected to the sewer (not shown in the figure) through the fourth connecting pipe 44. The pre-filter element 31 is connected in series to the first connecting pipe 41, and the post-filter element 33 is connected in series to the third connecting pipe 43. The water purifier also includes a return pipe, the inlet end and the outlet end of the return pipe are connected to the outlet of the boost pump and the water inlet pipe of the boost pump respectively, the cooling channel of the noise reduction heat dissipation box 1 is connected in series to the return pipe, and a one-way valve is also connected in series on the return pipe, and the one-way valve is conducted along the direction from the inlet end to the outlet end of the return pipe. Specifically, the inlet of the cooling channel of the noise reduction heat dissipation box 1 is connected to the second connecting pipe 42 through the fifth connecting pipe 45, and the outlet of the cooling channel of the noise reduction heat dissipation box 1 is connected to the pipe section of the first connecting pipe 41 located upstream of the pre-filter element 31 through the sixth connecting pipe 46. The fifth connecting pipe 45 and the sixth connecting pipe 46 form the return pipe of the water purifier. The first one-way valve 51 and the second one-way valve 52 are connected in series on the fifth connecting pipe 45 and the sixth connecting pipe 46 respectively. The first one-way valve 51 is conducted along the fifth connecting pipe 45 toward the direction of the noise reduction heat dissipation box 1, and the second one-way valve 52 is conducted along the sixth connecting pipe 46 toward the direction away from the noise reduction heat dissipation box 1.

[0054] During operation, tap water is filtered through the pre-filter 31 and then enters the booster pump 2. After being pressurized by the booster pump, a portion of the water directly flows into the reverse osmosis filter 32, and the other portion of the water flows back into the first connecting pipe 41 through the fifth connecting pipe 45, the cooling channel of the noise reduction heat sink 1, and the sixth connecting pipe 46 and mixes with the water in the first connecting pipe 41. The pure water produced by the reverse osmosis filter 32 flows through the post-filter 33 along the third connecting pipe 43 and then flows out from the water outlet. The waste water produced by the reverse osmosis filter 32 flows into the sewer through the fourth connecting pipe 44.

[0055] The noise reduction heat dissipation box 1 reduces the noise transmitted from the inside thereof, and optimizes the user experience. The water flowing through the cooling channel of the noise reduction heat dissipation box 1 absorbs the heat generated by the booster pump 2 and takes the heat out of the noise reduction heat dissipation box 1, thereby achieving effective heat dissipation of the booster pump 2. The water that absorbs the heat flows back to the first connecting pipe 41 and mixes with the water therein, thereby increasing the temperature of the water entering the booster pump 2, and then finally increasing the temperature of the water entering the reverse osmosis filter element 32, thereby avoiding the low water temperature affecting the filtering performance of the reverse osmosis filter element, extending the service life of the reverse osmosis filter element, and increasing the output of pure water.

[0056] In another feasible embodiment, different from the second embodiment, the outlet of the cooling channel of the noise reduction heat sink 1 is connected to the pipe section of the first connecting pipe 41 located downstream of the pre-filter element 31 through the sixth connecting pipe 46 .

[0057] In some other feasible embodiments, different from the embodiments of the above-mentioned water purifiers, only the first one-way valve 51 may be provided without the second one-way valve 52, or only the second one-way valve 52 may be provided without the first one-way valve 51, or neither the first one-way valve 51 nor the second one-way valve 52 may be provided.

[0058] In some other feasible embodiments, different from the second embodiment, the fifth connecting pipe 45, the sixth connecting pipe 46, the first non-return valve 51 and the second non-return valve 52 are not provided, and the cooling channel of the noise reduction heat dissipation box 1 is connected in series to the first connecting pipe 41, the second connecting pipe 42 or the third connecting pipe 43. When the cooling channel of the noise reduction heat dissipation box 1 is connected in series to the second connecting pipe 42, the inlet of the cooling channel is connected to the outlet of the booster pump 2, and the outlet of the cooling channel is connected to the inlet of the reverse osmosis filter element 32. When the water pressurized by the booster pump 2 flows through the cooling channel, it absorbs the heat generated by the booster pump 2 and heats up. The heated water flows to the inlet of the reverse osmosis filter element 32, so that the temperature of the water entering the reverse osmosis filter element 32 is increased, so that the reverse osmosis filter element 32 can maintain good filtering performance, eliminate the adverse effects of low temperature on the filtering performance of the reverse osmosis filter element 32, and increase the output of pure water.

[0059] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A noise reduction and heat dissipation box for a booster pump of a water purifier, characterized in that: The noise reduction and heat dissipation box comprises a shell, the inner cavity of the shell is used to install the booster pump, the shell comprises a heat conduction layer, a heat dissipation layer and a noise reduction layer, the heat conduction layer, the heat dissipation layer and the noise reduction layer are sequentially distributed from the inside to the outside along the thickness direction of the shell, and a cooling channel connected to the outside of the shell is arranged between the inner wall and the outer wall of the heat dissipation layer; The heat-conducting layer is used to conduct the heat generated by the boost pump to the heat dissipation layer, and the heat dissipation layer is used to transport the heat to the outside of the housing with the help of the fluid flowing in the cooling channel.

2. The noise reduction heat dissipation box according to claim 1, characterized in that: The noise reduction layer is a sound insulation material layer.

3. The noise reduction heat dissipation box according to claim 1, characterized in that: The noise reduction layer comprises a substrate, and a sealed cavity is formed between an inner wall and an outer wall of the substrate.

4. The noise reduction heat dissipation box according to claim 3, characterized in that: The noise reduction layer further includes a sound insulation material layer located between the inner wall of the substrate and the outer wall of the heat dissipation layer and bonded to both, and / or A layer of sound insulation material is attached to the outer wall of the substrate.

5. The noise reduction heat dissipation box according to claim 2 or 4, characterized in that: The sound insulation material layer is made of sound insulation cotton.

6. The noise reduction heat dissipation box according to claim 1, characterized in that: The heat conducting layer is made of copper, aluminum or graphite.

7. A water purifier, characterized in that: The water purifier comprises the noise reduction and heat dissipation box according to any one of claims 1 to 6.

8. The water purifier according to claim 7, characterized in that: The inlet of the cooling channel is communicated with the wastewater outlet of the reverse osmosis filter element of the water purifier.

9. The water purifier according to claim 7, characterized in that: The inlet of the cooling channel is communicated with the outlet of the booster pump, and the outlet of the cooling channel is communicated with the inlet of the reverse osmosis filter element of the water purifier.

10. The water purifier according to claim 7, characterized in that: The water purifier also includes a reflux pipe, the inlet end and the outlet end of the reflux pipe are respectively connected to the outlet of the boost pump and the water inlet pipe of the boost pump, the cooling channel is connected in series to the reflux pipe, and a one-way valve is also connected in series to the reflux pipe, and the one-way valve is connected in the direction from the inlet end to the outlet end of the reflux pipe.

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