WO2020220505A1 - 一种具有双液冷泵的手持便携式清洗机 - Google Patents

一种具有双液冷泵的手持便携式清洗机 Download PDF

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Publication number
WO2020220505A1
WO2020220505A1 PCT/CN2019/099765 CN2019099765W WO2020220505A1 WO 2020220505 A1 WO2020220505 A1 WO 2020220505A1 CN 2019099765 W CN2019099765 W CN 2019099765W WO 2020220505 A1 WO2020220505 A1 WO 2020220505A1
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WIPO (PCT)
Prior art keywords
pump
motor
dual liquid
cooling
washing machine
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PCT/CN2019/099765
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English (en)
French (fr)
Inventor
林有余
刘楷
蔡济波
范宝才
汪洋
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江苏苏美达五金工具有限公司
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Publication of WO2020220505A1 publication Critical patent/WO2020220505A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/08—Cooling; Heating; Preventing freezing

Definitions

  • the invention belongs to the technical field of hand-held washing machines, and in particular relates to a hand-held portable washing machine with dual liquid cooling pumps.
  • the high-pressure cleaner is a kind of equipment that uses water or a mixture of cleaning agents as the cleaning medium and uses high-pressure water to clean the surface of objects.
  • the high-pressure cleaner can be used to clean cars, courtyards, floors, railings, doors and windows, etc. It is more Efficient and convenient, its main components are spray gun and host.
  • the host includes motor, pump and battery or external power cord.
  • the spray gun and host are connected by a water inlet pipe.
  • the spray gun is responsible for forming water flows of different shapes according to actual needs, and the host is responsible for removing water from Municipal tap water or buckets are converted into high-pressure water flow and delivered to the spray gun. Commonly, the host is placed on the ground fixedly or movably. The host has a large volume and heavier weight.
  • the use process is carried out by the spray gun, and the scope of use is limited. There are still many inconveniences in operation.
  • the hand-held washing machine or hand-held high-pressure washing machine can be directly connected to an external water source through a water pipe, and the machine is held by hand to perform cleaning operations, and the convenience of movement is effectively solved.
  • further research and actual use have found that because the motors and pumps are all wrapped in a smaller casing, the casing is closer to the human body.
  • the high-speed operation of mechanical parts directly causes the motor and pump to generate a lot of heat, which causes the motor And the temperature of the pump body rises sharply, and the excessive temperature rise of the parts is often the main factor that causes the failure of the mechanical moving parts, and the high temperature can easily burn the human body. Therefore, how to reduce the temperature of the motor and the pump has become a problem that must be solved.
  • the fan blades bring the heat generated by the motor to the outer space of the casing.
  • the best solution to the existing technology of pump cooling is to add coolant in the pump plunger cavity to control the temperature of the pump.
  • the coolant exists in the sealed space and flows non-circularly, the temperature of the coolant will continue to rise as the heat accumulates, and the temperature of the pump is difficult to effectively control.
  • the pump should also be cooled more effectively so as to improve the experience during use and the service life of mechanical parts.
  • the purpose of the present invention is to overcome the shortcomings in the prior art and provide a handheld portable washing machine with a dual liquid-cooled pump, which can further improve the cooling capacity of the pump, thereby improving the service life of the components and the user experience.
  • the present invention discloses a hand-held portable washing machine with dual liquid cooling pumps, including:
  • a pump driven by a motor the pump has a pump inlet and a high-pressure outlet;
  • Shell the shell contains the pump and the motor
  • the pump includes:
  • At least one plunger At least one plunger
  • the swash plate is driven by the motor to drive the plunger to move in a straight line;
  • the pump housing has a sealed cavity that contains the plunger, swash plate and lubricating coolant;
  • the pump housing is provided with at least one cooling channel, a water inlet communicating with one end of the cooling channel, and a water outlet communicating with the other end of the cooling channel.
  • the water inlet is connected to an external water source, and the water outlet is connected to the pump water inlet.
  • an end cover is provided at one end of the pump housing close to the motor, and the end cover is connected with the motor.
  • the pump casing includes a pump head and a pump casing that are connected back and forth to form a sealed cavity, and the cooling channel, the water inlet and the water outlet are all arranged on the pump casing.
  • an end cover is provided at one end of the pump housing close to the motor, and the end cover is connected with the motor.
  • a speed reduction mechanism is arranged between the pump and the motor, and the speed reduction mechanism is arranged in the end cover.
  • the reduction mechanism is a planetary gear reduction mechanism.
  • the water inlet is located at a position close to the motor, and the water outlet is located at a far position from the motor;
  • the outer surface of the cooling channel is provided with a number of heat conducting ribs I extending to the outer surface of the pump housing; when the cooling channel extends in the circumferential direction of the pump housing, the outer surface of the cooling channel There are several heat conducting ribs II extending to the outer surface of the pump casing.
  • the housing has an integrally connected receiving part and a holding part, the pump and the motor are arranged in the receiving part, the holding part extends obliquely in a direction away from the receiving part, and the holding part is provided with a power switch.
  • the handheld portable high-pressure cleaner also includes a battery pack, the rated voltage of the battery pack is 18-60V; the battery pack is arranged in the handheld part or detachably arranged in the waterproof compartment at the end of the handheld part, the waterproof compartment is provided with a waterproof compartment cover.
  • the hand-held portable high-pressure cleaner also includes a battery pack, the rated voltage of the battery pack is 18-60V; the battery pack is connected to the end of the hand-held part in a sealed plug-in connection.
  • the motor is a rare earth permanent magnet brushless motor.
  • the outer shell is a completely sealed shell with a waterproof rating of IPX7
  • the handheld portable washing machine is a handheld portable high-pressure washing machine
  • the maximum working pressure of the pump is not less than 2.5Mpa.
  • the weight of the handheld portable high-pressure cleaner does not exceed 4.2 kg.
  • the invention has the beneficial effects: while cooling the coolant inside the pump, it increases the cooling of the external flowing water, realizes the double liquid cooling of internal and external combination, circulation and non-circulation combination, completely solves the cooling problem of the pump body, and greatly improves the life of the pump. In addition, the scalding to the human body during use is avoided, and the use is safer.
  • Figure 1 is a front view of the structure of a preferred embodiment of the present invention.
  • Figure 2 is a front view of the structure of the motor pump unit in the embodiment shown in Figure 1;
  • FIG. 3 is a perspective view of the structure of the motor pump unit in the embodiment shown in FIG. 1;
  • Figure 4 is a perspective view of the structure of the pump housing in the embodiment shown in Figure 1;
  • Fig. 5 is a perspective view of the structure of the pump casing in the alternative of the embodiment shown in Fig. 1.
  • a handheld portable washing machine 22 with dual liquid-cooled pumps includes: a housing 20, a motor pump unit and a spray gun 21.
  • the motor pump unit includes a motor 5 and a pump 23 driven by the motor 5.
  • 23 has a pump water inlet 11 and a high-pressure water outlet 1; the high-pressure water outlet 1 is connected to a spray gun 21.
  • the housing 20 houses the pump 23 and the motor 5.
  • the pump 23 includes at least one plunger 13, a swash plate 14 and a pump housing 26.
  • the plunger 1 moves linearly in the plunger cavity, and its end in the sealed cavity 12 is in sliding contact with the surface of the swash plate 14.
  • the swash plate 14 is driven by the motor 5 to drive the plunger 13 to move in a straight line, and then acts on the spring. Lower reset to achieve reciprocating motion.
  • the pump housing 26 has a sealed cavity 12 that contains the plunger 13, the swash plate 14, and the lubricating coolant.
  • the pump housing 26 is provided with at least one cooling channel 7, a water inlet 6 connected to one end of the cooling channel 7, and a water outlet 8 connected to the other end of the cooling channel 7.
  • the water inlet 6 is connected to an external water source through a water inlet pipe 19, and the water outlet 8 passes through
  • the connecting pipe 10 is connected to the water inlet 11 of the pump.
  • the water flows through the water inlet pipe 19 into the cooling channel 7.
  • the heat generated by the operation of the internal mechanical parts of the pump 23 during operation will be transferred to the pump housing 26 through the lubricating coolant, and then to the cooling channel 7, and finally
  • the cooling water flowing inside is taken away, realizing more efficient heat dissipation.
  • an end cover 4 is provided at one end of the pump housing 14 close to the motor 5, and the end cover 4 is connected to the motor 5, and the fixed connection between the pump 23 and the motor 5 is realized through the end cover 4. Since the connecting parts are bolts or screws, the separation of the two can be facilitated.
  • the pump housing 26 includes a pump head 2 and a pump housing 3 that are connected back and forth to form a sealed cavity 12.
  • the cooling channel 7, the water inlet 6 and the water outlet 8 are all provided on the pump housing 3.
  • An end cover 4 is provided at one end of the pump housing 3 close to the motor 5, and the end cover 4 is connected with the motor 5. This not only facilitates the connection between the pump 23 and the motor 5, but also facilitates the installation of the internal components of the pump 23, that is, various valves and plungers 13 are installed in the pump head 2, and a swash plate 14 is installed in the pump housing 3.
  • a deceleration mechanism 24 is provided between the pump 23 and the motor 5, the end cover 4 has a cylindrical structure and therefore has a housing cavity, and the deceleration mechanism 24 is provided in the housing cavity of the end cover 4.
  • the reduction mechanism 24 is a planetary gear reduction mechanism.
  • the water inlet 6 is located at the proximal position from the motor 5 and the water outlet 8 is located at the far end from the motor 5.
  • the outer surface of the cooling channel 7 is provided with several edges The heat conducting ribs I15 extending in the circumferential direction to the outer surface of the pump housing 26.
  • the outer surface of the cooling channel 7 is provided with a number of heat conducting ribs II29 extending to the outer surface of the pump housing 26 in the axial direction.
  • the pump housing 3 can also have cooling channels 19 in two extending directions at the same time. As shown in FIG. 5, the cooling channel 19 extending in the circumferential direction is provided at one end of the pump housing 3 close to the motor 5, which is essentially provided at this end. The annular groove on the end surface is sealed by the end cover 4 when the end is connected to the end cover 4 to form a cooling channel 19 for cooling water to flow inside.
  • the cooling channel 19 extending in the axial direction can communicate with the cooling channel 19 extending in the circumferential direction and the water outlet 8.
  • the housing 20 has an integrally connected receiving portion 27 and a holding portion 16.
  • the pump 5 and the motor 5 are arranged in the receiving portion 3.
  • the holding portion 16 extends obliquely in a direction away from the receiving portion 3, and the holding portion 16 is provided with a power switch 18.
  • the power switch 18 is connected in the power supply circuit to realize the start-stop control of the whole machine.
  • the washing machine can be self-powered.
  • the handheld high-pressure washing machine 22 also includes a battery pack 17 whose rated voltage is 18-60V; the battery pack 17 is designed In the hand-held part 16 or detachably provided in the waterproof compartment 28 at the end of the hand-held part 16, the waterproof compartment 28 is provided with a waterproof compartment cover 25.
  • the waterproof compartment cover 25 can adopt a sliding manner to realize the opening and closing of the waterproof compartment 28, and can also adopt a pivoting manner to realize the opening and closing of the waterproof compartment 28, so as to facilitate the taking and placing of the battery pack 17.
  • the battery pack 17 is connected to the end of the handle 16 in a sealed plug-in connection.
  • the handle 16 is provided with contacts, and the corresponding part of the battery pack 17 is also provided with contacts. After the battery pack 17 is inserted in place, the two The contacts of the user are connected to form a complete power supply circuit, while meeting the waterproof requirements.
  • the motor 5 is a rare earth permanent magnet brushless motor, which has stronger power and can increase the working pressure of the pump 23.
  • the housing 20 does not need any air inlet and outlet openings, and the housing 20 can be made completely sealed, and its waterproof level meets the requirements of the handheld high-pressure washer IPX7, and the maximum working pressure of the pump 23 is not less than 2.5 Mpa, so as to achieve stronger cleaning ability, and achieve quietness.
  • the weight of the handheld portable high pressure washer 22 does not exceed 4.2 kg, preferably, the weight of the handheld portable high pressure washer 22 does not exceed 3 kg.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

一种具有双液冷泵的手持便携式清洗机，包括：由电机（5）驱动的泵（23），泵具有泵进水口（11）和高压出水口（1）；外壳（20），外壳密封包裹泵（23）和电机（5）；泵包括：至少一个柱塞（13）；斜盘（14），斜盘受电机的驱动而带动柱塞沿直线运动；泵壳体（26），泵壳体具有一密封腔（12），密封腔容纳柱塞、斜盘和润滑冷却剂；泵壳体设有至少一个冷却通道（7）、一连通冷却通道一端的进水口（6）和一连通冷却通道另一端的出水口（8），进水口（6）连接外部水源，出水口（8）连接泵进水口（11）。该清洗机可在泵内部冷却剂冷却的同时增加外部流动水冷却，实现内外结合、循环和非循环结合的双重液冷，使泵体冷却问题得到彻底解决，泵的寿命大大提高，此外还避免了使用过程中对人体造成烫伤的情况，使用起来更为安全。

Description

一种具有双液冷泵的手持便携式清洗机 技术领域
本发明属于手持式清洗机技术领域，具体涉及一种具有双液冷泵的手持便携式清洗机。
背景技术
高压清洗机是一种以水或添加有清洗剂的混合液为清洗介质，利用高压水流实现物体表面清洗的设备，高压清洗机可用来清洗汽车、庭院、地面、栏杆、门窗等，使用起来较为高效和方便，其主要组成有喷枪和主机，主机包括电机、泵和电池或外接电源线，喷枪和主机间通过进水管连接，喷枪负责根据实际需要形成不同形状的水流，而主机负责将水从市政自来水或水桶中转换成高压水流输送至喷枪中，常见的为主机在地面上固定放置或可移动放置，主机体积较大、重量较重，使用过程通过喷枪进行工作，使用范围受到一定限制，操作起来仍然存在很多不方便的地方。
手持式清洗机或手持式高压清洗机可以通过水管直接连接外部水源，用手握持机器进行清洗作业，移动便利性得到有效解决。但进一步研究和实际使用发现，由于电机、泵全部包裹在较小的机壳内，机壳离人体较近，在使用过程中，机械部件高速运转直接导致电机和泵产生大量的热量，造成电机和泵体温度急剧升高，而部件温升过高往往是造成机械运动部件失效等的主要因素，并且高温还会容易烫伤人体，因此如何降低电机和泵的温度成为必须解决的难题，电机往往通过风叶强制冷却，风叶将电机产生的热量带到机壳外部空间，对于泵的冷却现有技术最好解决方案就是在泵柱塞腔内添加冷却液，使泵的温度得到一定控制，但由于冷却液存在于密封空间内并且非循环流动，随着热量集聚冷却液温度仍然会继续上升，泵的温度难以有效控制。
由此可见，除了需要对电机进行冷却外，泵也应当得到更有效的冷却从而提升使用过程中的体验度和机械部件的使用寿命。
发明内容
本发明的目的在于克服现有技术中的不足，提供一种具有双液冷泵的手持便携式清洗机，能够进一步提高泵的冷却能力，从而提升部件的使用寿命和使用者的体验度。
为解决现有技术问题，本发明公开了一种具有双液冷泵的手持便携式清洗机，包括：
由电机驱动的泵，泵具有泵进水口和高压出水口；
外壳，外壳容纳泵和电机；
泵包括：
至少一个柱塞；
斜盘，斜盘受电机的驱动而带动柱塞沿直线运动；
泵壳体，泵壳体具有一密封腔，密封腔容纳柱塞、斜盘和润滑冷却剂；
泵壳体设有至少一个冷却通道、一连通冷却通道一端的进水口和一连通冷却通道另一端的出水口，进水口连接外部水源，出水口连接泵进水口。
进一步地，泵壳体靠近电机的一端设有端盖，端盖与电机连接。
进一步地，泵壳体包括前后连接以形成密封腔的泵头和泵壳，冷却通道、进水口和出水口均设于泵壳上。
进一步地，泵壳靠近电机的一端设有端盖，端盖与电机连接。
进一步地，泵和电机之间设有减速机构，减速机构设于端盖内。
进一步地，减速机构为行星齿轮减速机构。
进一步地，进水口位于距离电机的近端位置，出水口位于距电机的远端位置；
当冷却通道沿平行于泵壳体的轴线方向延伸时，冷却通道外表面设有若干延伸至泵壳体外表面的导热筋I；当冷却通道沿泵壳体的圆周方向延伸时，冷却通道外表面设有若干延伸至泵壳体外表面的导热筋II。
进一步地，外壳具有一体连接的收容部和手持部，泵和电机设于收容部内，手持部沿背离收容部的方向倾斜延伸，手持部上设有电源开关。
进一步地，手持便携式高压清洗机还包括电池包，电池包的额定电压为18～60V；电池包设于手持部内或可分离地设于手持部端部的防水仓内，防水仓设有防水仓盖。
进一步地，手持便携式高压清洗机还包括电池包，电池包的额定电压为18～60V；电池包与手持部的端部密封插拔连接。
进一步地，电机为稀土永磁无刷电机。
进一步地，外壳为完全密封的壳体，其防水等级达到IPX7，手持便携式清洗机为手持便携式高压清洗机，泵的最大工作压力不低于2.5Mpa。
进一步地，手持便携式高压清洗机的重量不超过4.2kg。
本发明具有的有益效果：在泵内部冷却剂冷却的同时增加外部流动水冷却，实现内外结合、循环和非循环结合的双重液冷，使泵体冷却问题得到彻底解决，泵的寿命大大提高，此外还避免了使用过程中对人体造成烫伤的情况，使用起来更为安全。
附图说明
图1为本发明一个优选实施例的结构主视图；
图2为图1所示实施例中电机泵单元的结构主视图；
图3为图1所示实施例中电机泵单元的结构立体图；
图4为图1所示实施例中泵壳的结构立体图；
图5为图1所示实施例的替代体中泵壳的结构立体图。
附图标记：
1高压出水口；2泵头；3泵壳；4端盖；5电机；6进水口；7冷却通道；8出水口；9接头；10连接管；11泵进水口；12密封腔；13柱塞；14斜盘；15导热筋I；16手持部；17电池包；18电源开关；19进水管；20外壳；21喷枪；22手持便携式高压清洗机；23泵；24减速机构；25防水仓盖；26泵壳体；27收容部；28防水仓；29导热筋II；图中箭头所指示方向为水流方向。
具体实施方式
下面结合附图对本发明作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。
如图1至5所示，一种具有双液冷泵的手持便携式清洗机22，包括：外壳20、电机泵单元和喷枪21，电机泵单元包括电机5和由电机5驱动的泵23，泵23具有泵进水口11和高压出水口1；高压出水口1连接喷枪21。外壳20容纳泵23和电机5。
泵23包括至少一个柱塞13、一斜盘14和一泵壳体26。柱塞1在柱塞腔内直线运动，其在密封腔12内的一端与斜盘14的盘面滑动接触，斜盘14受电机5的驱动而带动柱塞13沿直线运动，后又在弹簧作用下复位从而实现往复运动。泵壳体26具有一密封腔12，密封腔12容纳柱塞13、斜盘14和润滑冷却剂。
泵壳体26设有至少一个冷却通道7、一连通冷却通道7一端的进水口6和一连通冷却通道7另一端的出水口8，进水口6通过进水管19连接外部水源，出水口8通过连接管10连接泵进水口11。水流经过进水管19进入冷却通道7中，泵23在运行过程中由于内部机械部件运转而产生的热量会通过润滑冷却剂传导至泵壳体26上，然后再传导至冷却通道7上，最后被其内流动的冷却水带走，实现更高效率的散热。
作为典型的连接方式，泵壳体14靠近电机5的一端设有端盖4，端盖4与电机5连接，通过端盖4实现泵23与电机5之间的固定连接。由于连接件为螺栓或螺钉，因此可以方便两者的分离。
作为上述连接方式的一个替代例，泵壳体26包括前后连接以形成密封腔12的泵头2和泵壳3，冷却通道7、进水口6和出水口8均设于泵壳3上。泵壳3靠近电机5的一端设有端盖4，端盖4与电机5连接。这样不仅能够方便泵23与电机5的连接，而且还便于泵23内 部件的安装，即泵头2内安装各种阀和柱塞13，泵壳3内安装斜盘14。
为了提高泵23的工作压力，因此可以提高电机5输出的扭矩。具体地，泵23和电机5之间设有减速机构24，端盖4为圆柱状结构因此具有一收容腔，减速机构24设于端盖4的收容腔内。减速机构24为行星齿轮减速机构。
进水口6位于距离电机5的近端位置，出水口8位于距电机5的远端位置。如图4所示，当冷却通道19沿平行于泵壳体26的轴线方向延伸时，为了更好地将泵壳3的热量传导至冷却通道19上时，冷却通道7外表面设有若干沿圆周方向延伸至泵壳体26外表面的导热筋I15。当冷却通道19沿泵壳体26的圆周方向延伸时，冷却通道7外表面设有若干沿轴向延伸至泵壳体26外表面的导热筋II29。泵壳3上也可同时具有两种延伸方向的冷却通道19，如图5所示，沿圆周方向延伸的冷却通道19设于泵壳3的靠近电机5的一端，其实质为设于该端端面上的环形槽，当该端与端盖4连接时被端盖4密封从而形成供冷却水在其内部流动的冷却通道19。沿轴向延伸的冷却通道19可连通沿圆周方向延伸的冷却通道19和出水口8。
外壳20具有一体连接的收容部27和手持部16，泵5和电机5设于收容部3内，手持部16沿背离收容部3的方向倾斜延伸，手持部16上设有电源开关18。电源开关18连接在供电电路中实现整机的启停控制。
为了提高清洗机的应用范围，减少外部线缆，清洗机可采用自供电方式，具体地，手持高压清洗机22还包括电池包17，电池包17的额定电压为18～60V；电池包17设于手持部16内或可分离地设于手持部16端部的防水仓28内，防水仓28设有防水仓盖25。防水仓盖25可以采取滑动式方式实现防水仓28的开合，也可以采取枢接方式实现防水仓28的开合，以便于电池包17的取放。作为替代方案，电池包17与手持部16的端部密封插拔连接，具体地，手持部16设有触点，电池包17对应部位也设有触点，电池包17插接到位后，两者的触点相连形成完整的供电回路，同时满足防水要求。
电机5为稀土永磁无刷电机，无刷电机具有更强的动力，能够提升泵23的工作压力。
当电机5为非风冷电机时，外壳20上不需要任何进出风口，可将外壳20做成完全密封，其防水等级达到手持高压清洗机IPX7的要求，泵23的最大工作压力不低于2.5Mpa，从而达到更强的清洗能力，并且做到静音。
为了降低手持使用的疲劳感，手持便携式高压清洗机22的重量不超过4.2kg，优选地，手持便携式高压清洗机22的重量不超过3kg。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和变形，这些改进和变形也应 视为本发明的保护范围。

Claims (13)

  1. 一种具有双液冷泵的手持便携式清洗机(22)，包括：
    由电机(5)驱动的泵(23)，所述泵(23)具有泵进水口(11)和高压出水口(1)；
    外壳(20)，所述外壳(20)容纳所述泵(23)和所述电机(5)；
    所述泵(23)包括：
    至少一个柱塞(13)；
    斜盘(14)，所述斜盘(14)受所述电机(5)的驱动而带动所述柱塞(13)沿直线运动；
    泵壳体(26)，所述泵壳体(26)具有一密封腔(12)，所述密封腔(12)容纳所述柱塞(13)、所述斜盘(14)和润滑冷却剂；其特征在于，
    所述泵壳体(26)设有至少一个冷却通道(7)、一连通所述冷却通道(7)一端的进水口(6)和一连通所述冷却通道(7)另一端的出水口(8)，所述进水口(6)连接外部水源，所述出水口(8)连接所述泵进水口(11)。
  2. 根据权利要求1所述一种具有双液冷泵的手持便携式清洗机(22)，其特征在于：所述泵壳体(26)靠近所述电机(5)的一端设有端盖(4)，所述端盖(4)与所述电机(5)连接。
  3. 根据权利要求1所述一种具有双液冷泵的手持便携式清洗机(22)，其特征在于：所述泵壳体(26)包括前后连接以形成所述密封腔(12)的泵头(2)和泵壳(3)，所述冷却通道(7)、进水口(6)和出水口(8)均设于所述泵壳(3)上。
  4. 根据权利要求3所述一种具有双液冷泵的手持便携式清洗机(22)，其特征在于：所述泵壳(3)靠近所述电机(5)的一端设有端盖(4)，所述端盖(4)与所述电机(5)连接。
  5. 根据权利要求2或4所述一种具有双液冷泵的手持便携式清洗机(22)，其特征在于：所述泵(23)和所述电机(5)之间设有减速机构(24)，所述减速机构(24)设于所述端盖(4)内。
  6. 根据权利要求5所述一种具有双液冷泵的手持便携式清洗机(22)，其特征在于：所述减速机构(24)为行星齿轮减速机构。
  7. 根据权利要求1至4任一所述一种具有双液冷泵的手持便携式清洗机(22)，其特征在于：所述进水口(6)位于距离所述电机(5)的近端位置，所述出水口(8)位于距所述电机(5)的远端位置；
    当所述冷却通道(19)沿平行于所述泵壳体(26)的轴线方向延伸时，所述冷却通道(7)外表面设有若干延伸至所述泵壳体(26)外表面的导热筋I(15)；当所述冷却通道(19)沿所述泵壳体(26)的圆周方向延伸时，所述冷却通道(7)外表面设有若干延伸至所述泵壳 体(26)外表面的导热筋II(29)。
  8. 根据权利要求1所述一种具有双液冷泵的手持便携式清洗机(22)，其特征在于：所述外壳(20)具有一体连接的收容部(27)和手持部(16)，所述泵(5)和所述电机(5)设于所述收容部(3)内，所述手持部(16)沿背离所述收容部(3)的方向倾斜延伸，所述手持部(16)上设有电源开关(18)。
  9. 根据权利要求8所述一种具有双液冷泵的手持便携式清洗机(22)，其特征在于：所述手持便携式高压清洗机(22)还包括电池包(17)，所述电池包(17)的额定电压为18～60V；所述电池包(17)设于所述手持部(16)内或可分离地设于所述手持部(16)端部的防水仓(28)内，所述防水仓(28)设有防水仓盖(25)。
  10. 根据权利要求8所述一种具有双液冷泵的手持便携式清洗机(22)，其特征在于：所述手持便携式高压清洗机(22)还包括电池包(17)，所述电池包(17)的额定电压为18～60V；所述电池包(17)与所述手持部(16)的端部密封插拔连接。
  11. 根据权利要求1所述一种具有双液冷泵的手持便携式清洗机(22)，其特征在于：所述电机(5)为稀土永磁无刷电机。
  12. 根据权利要求1所述一种具有双液冷泵的手持便携式清洗机(22)，其特征在于：所述外壳(20)为完全密封的壳体，其防水等级达到IPX7，所述手持便携式清洗机(22)为手持便携式高压清洗机，所述泵(23)的最大工作压力不低于2.5Mpa。
  13. 根据权利要求1所述一种具有双液冷泵的手持便携式清洗机(22)，其特征在于：所述手持便携式高压清洗机的重量不超过4.2kg。
PCT/CN2019/099765 2019-04-29 2019-08-08 一种具有双液冷泵的手持便携式清洗机 WO2020220505A1 (zh)

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