CN105091350A - High-efficiency energy-saving electric heater for PTC liquid of new energy vehicle and automatic controlling method - Google Patents

High-efficiency energy-saving electric heater for PTC liquid of new energy vehicle and automatic controlling method Download PDF

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CN105091350A
CN105091350A CN 201510593005 CN201510593005A CN105091350A CN 105091350 A CN105091350 A CN 105091350A CN 201510593005 CN201510593005 CN 201510593005 CN 201510593005 A CN201510593005 A CN 201510593005A CN 105091350 A CN105091350 A CN 105091350A
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ptc
liquid
electric heater
heater
energy
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CN 201510593005
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Chinese (zh)
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郑进军
徐雪波
王辉
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镇江东方电热科技股份有限公司
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Abstract

The invention discloses a high-efficiency energy-saving electric heater for PTC liquid of a new energy vehicle. The high-efficiency energy-saving electric heater comprises an upper-portion casing for containing controlling components, a PTC heater core connected with the upper-portion casing, a container for containing and circulating an antifreezing solution and a lower-portion casing. The container is formed by a plurality of aluminum tubes which are arranged at intervals, and a liquid inlet pipe and a liquid outlet pipe are formed by aluminum header pipes at the two ends of the aluminum tubes; the PTC heater core is inserted in a gap between the aluminum tubes; and the lower-portion casing is arranged on the container in a sleeving manner and is fixed to the upper-portion casing; and the inlet pipe and the outlet pipe penetrate the lower-portion casing. Meanwhile, the invention provides an automatic controlling method of the electric heater for the PTC liquid. The electric heater has the beneficial effects that the structure of the electric heater for the PTC liquid of the vehicle is improved, the heat exchange efficiency is improved, and the purposes of quick heating and energy conservation are achieved; the possibility of leakage of the antifreezing solution is greatly reduced; the electric heater is durable; an existing gear adjusting method can be replaced with an automatic controlling method for power adjustment; stepless regulation of electronic automatic control is achieved; and soft start is also achieved.

Description

高效节能的新能源汽车PTC液体电加热器及自动控制方法 New energy vehicles PTC electric heater and liquid automatic control method for energy-efficient

技术领域 FIELD

[0001] 本发明涉及汽车PTC液体电加热器,特别是适用于新能源汽车的PTC液体电加热器,以及其自动控制方法。 [0001] The present invention relates to electric liquid heater PTC cars, in particular for new liquid energy vehicles PTC electric heater, as well as automatic control method.

背景技术 Background technique

[0002] 汽车PTC液体电加热器,是通过加热循环流动的防冻液来提升车厢内的空气温度、维持电池温度或为其它提供所需热源的多用途电加热器,在严寒的冬季,是汽车空调采暖系统和电池加热保温系统的最重要电加热源,也是汽车达到除霜法规要求和确保电池充放电安全的重要部件。 [0002] Cars liquid PTC electric heater, heating by antifreeze circulating air to raise the temperature in the compartment, to maintain the temperature of the battery or an electric heater to provide the desired purpose as other heat source, in the cold of winter, car the most important electrical insulation system battery heating and air-conditioning heating system heat source, but also to achieve defrosting automobile regulations and ensuring safety critical components of battery charge and discharge.

[0003] 由于新能源汽车都是在高电压条件下工作,而且电量消耗和充放电安全都是重要的指标,因此对PTC液体式电加热器的节能要求很高,它除了要求有一般PTC液体式电加热器的加热功能外,更重要的是要能够实现智能化精确控制,要具有理想的温度控制功能,要具有电源防反、过压保护、欠压保护、超温保护、过流保护、限流保护、功率调节、软启动、通讯等功能。 [0003] Due to the new energy vehicles are operated at high voltage conditions, and the charge-discharge power consumption and safety are important indicators, thus very high energy requirements PTC electric heater of a liquid, it is generally required in addition to the liquid PTC an outer electric heater heating function, and more important is to be able to realize the intelligent control precisely, to have a desired temperature control, to have anti-anti-power, overvoltage, undervoltage, over-temperature protection, overcurrent protection , current limiting protection, power conditioning, soft start, communications and other functions.

[0004] PTC液体电加热器本身的结构,对热效率高低和是否节能也有重要的影响。 [0004] PTC electric liquid heater structure itself, also has an important influence on the thermal efficiency and the energy efficiency level. 现有的新能源汽车PTC液体电加热器结构,如附图1-3所示,PTC加热芯体1-1连于容纳控制元器件的上部1-2,PTC加热芯体1-1放入做为盛放防冻液的下壳1-3里,下壳1-3的一组对侧分别开设有液体进口(IGBT组装方向)1-4、出口1-5,下壳1-3内部与PTC加热芯体1_1表面之间直接形成了液体通道1-6,防冻液由进口1-4、通道1-6、出口1-5形成流动方向。 Existing liquid new energy vehicles PTC electric heater structure as shown in FIGS. 1-3, 1-1 PTC heating the core is connected to the upper portion of the control components housed 1-2, 1-1 PTC heating into the core as antifreeze accommodating the lower case 1-3 years, a set of side lower case are 1-3 defines a liquid inlet (IGBT assembling direction) 1-4, 1-5 the outlet, the interior of the shell 1-3 PTC heating core is formed directly between the liquid passage 1-6 1_1 surface, formed by the inlet flow direction of antifreeze 1-4, passage 1-6, 1-5 exit. 由此可见:1、上部1-2与下壳1-3之间的密封面要可靠,因为防冻液不断经受冷热交换,密封面产生泄漏点的可能性增大;2、液体通道1-6比较宽大,加热升温速度慢。 Thus: 1, between the upper seal surface of the lower case 1-3 to 1-2 reliable because constantly subjected to cold and hot antifreeze, possibility of leak of the sealing surface is increased; 2, liquid passage 1- 6 relatively large, slow heating temperature.

发明内容 SUMMARY

[0005] 发明目的:针对上述问题,本发明的目的是提供一种适用于新能源汽车的高效传热、节能的PTC液体电加热器,同时提供一种对电加热器的自动控制方法,能够智能化精确控制。 [0005] Object of the invention: the above problems, an object of the present invention is to provide a heat transfer efficiency suitable for new energy vehicles, energy saving electric heater PTC liquid, while there is provided a method for automatic control of the electric heater can be intelligent precise control.

[0006] 技术方案:一种高效节能的新能源汽车PTC液体电加热器,包括容纳控制元器件的上部壳体、与所述上部壳体相连的PTC加热器芯体、盛放和流通防冻液的容器、下部壳体,所述容器由若干铝扁管间隙排列构成,所述铝扁管两端由铝集流管形成液体进口管道、出口管道,所述PTC加热器芯体插在所述铝扁管之间的间隙中,所述下部壳体套在所述容器外部并与所述上部壳体固定,所述进口管道、所述出口管道穿过所述下部壳体。 [0006] Technical Solution: an energy efficient new energy vehicles PTC electric liquid heater comprising an upper housing accommodating the control components, PTC heater core coupled to said upper housing, and circulation bloom antifreeze container, a lower portion of the housing, the container arrangement by a plurality of flat aluminum tubes constituting the gap, the flat aluminum tube is formed at both ends of a liquid inlet duct of an aluminum header, an outlet pipe, the PTC heater is inserted in the core the gap between the flat aluminum tube, the lower sleeve in a housing with the exterior of the container and an upper housing secured to the inlet conduit, the outlet duct through the lower housing.

[0007] 电加热器提供给防冻液流通的容器是独立的,与PTC加热器芯体或其他部件没有直接接触,容器没有泄漏风险,即使防冻液不断地经受冷热交换,也耐用防漏;同时每个铝扁管形成的流通通道是独立的,流量固定,由相邻的PTC加热器芯体加热,不会因流量变化产生加热不均、快慢不一的影响;而且铝扁管形成的流通通道是偏窄形的,相邻的PTC加热器芯体加热使其升温速度明显加快,在同样的防冻液容器体积下,这种铝扁管设置的数量相对增多,即可以形成更多的流通通道,受热面积显著增加,提高了升温速度。 [0007] The electric heater provided to the antifreeze circulation vessel are independent, there is no direct contact with the PTC heater core or other components of the container without the risk of leakage, even when subjected to continuous cold and hot antifreeze, also leakproof and durable; while the flow passage flat tube formed of aluminum are each independently of the flow rate is fixed, the PTC heater is heated by an adjacent core, the flow rate change will not produce uneven heating, the influence of varying speed; and flat aluminum tube formed is narrow flow channels are shaped, adjacent to the PTC heater core is heated and allowed to warm significantly faster at the same antifreeze vessel volume, the number of such flat aluminum tube disposed relative increase, i.e., may be formed more flow passage, the heated area increases significantly, increase the rate of temperature increase.

[0008] 所述铝扁管截面为单孔或多孔不规则形状,流通间隙为0.5〜50mm。 [0008] The flat aluminum tube section is irregular or porous single hole, flow gap 0.5~50mm.

[0009] 所述PTC加热器芯体与所述铝扁管采用粘胶并通过夹具固定后加温固化。 [0009] The PTC heater core and the aluminum flat tube with viscose and cured by heating after the fixing jig.

[0010] 所述PTC加热器芯体与所述铝扁管采用聚酰亚胺绝缘膜或氧化铝瓷片或硅胶片绝缘隔开。 [0010] The PTC heater core and the aluminum flat tube using a polyimide film or an aluminum oxide ceramic insulating partition or insulating silicone sheet.

[0011] 所述铝扁管与所述铝集流管焊接或铆接连接或一体成型制成。 [0011] The aluminum flat tube and the header aluminum welding or riveting, or are integrally formed connector.

[0012] —种上述的高效节能的新能源汽车PTC液体电加热器自动控制方法,调整控制器占空比来调节PTC加热器芯体发热功率以及实现控制器软启动:通过不间断地实时检测PTC液体电加热器进出口水温,以判断需要增大或减小PTC加热器芯体发热功率,从而调整控制器占空比增大或减小,实现无级调节PTC液体电加热器发热功率;通过逐步增大控制器占空比以增大电流,实现调节控制器启动冲击电流的大小。 [0012] - new liquid energy vehicles PTC electrical automatic control method of the above energy-efficient heater, the controller adjusting the duty cycle to regulate the heating power of the PTC heater core and achieving soft start controller: continuously detecting in real time PTC electric heater and export of liquid water, to determine the need to increase or decrease the heating power of the PTC heater core, thereby adjusting the duty cycle of the controller increases or decreases, stepless adjustable electric liquid heater PTC heating power; by gradually increase the duty cycle to increase the current controller, the controller starts adjustment to achieve the size of surge current.

[0013] 有益效果:与现有技术相比,本发明的优点是通过改进汽车PTC液体电加热器的结构,提高换热效率,从而达到快速加热和节能的目的,同时极大地减小了防冻液泄漏的可能性,经久耐用;对功率调节的自动控制方法摒弃了现有档位调节的方式,实现了电子自动控制的无级调节,并达到了软启动的目的。 [0013] The beneficial effects: Compared with the prior art, advantages of the present invention is by improving the structure of an automobile electric heater PTC liquid, improve heat transfer efficiency, so as to achieve rapid heating and energy saving, while greatly reduced antifreeze the possibility of liquid leakage, durable; automatic control method for power regulation abandoned the conventional gear-regulating manner, to achieve a stepless adjustment of the electronic automatic control, and achieve the purpose of the soft start.

附图说明 BRIEF DESCRIPTION

[0014] 图1为汽车PTC液体式电加热器的结构主视图; [0014] FIG. 1 is a liquid-type electric heater PTC automotive front view structure;

[0015] 图2为图1的仰视图; [0015] FIG. 2 is a bottom view of FIG. 1;

[0016] 图3为图1的AA剖视图; [0016] FIG. 3 is a cross-sectional view AA of Figure 1;

[0017] 图4为本发明的结构主视图; [0017] FIG 4 a front view of the structure of the present invention;

[0018] 图5为图4的俯视图; [0018] FIG. 5 is a top view of FIG 4;

[0019] 图6为图3的BB剖视图。 [0019] FIG. 6 is a cross-sectional view BB of FIG. 3.

具体实施方式 detailed description

[0020] 下面结合附图和具体实施例,进一步阐明本发明,应理解这些实施例仅用于说明本发明而不用于限制本发明的范围,在阅读了本发明之后,本领域技术人员对本发明的各种等价形式的修改均落于本申请所附权利要求所限定的范围。 [0020] conjunction with the accompanying drawings and the following specific examples further illustrate the invention, it should be understood that these embodiments are illustrative only and the present invention is not intended to limit the scope of the present invention, after reading this disclosure, those skilled in the art of the present invention various modifications are equivalents fall within the present application as defined in the appended claims scope.

[0021] 如附图4-6所示,一种高效节能的新能源汽车PTC液体电加热器,包括容纳控制元器件的上部壳体1、与上部壳体I相连的PTC加热器芯体2、盛放和流通防冻液的容器、下部壳体3。 [0021] As shown in figures 4-6, an energy efficient new energy vehicles PTC electric liquid heater comprising a housing accommodating an upper portion of the control units. 1, PTC heater core coupled to the upper housing body 2 I , bloom and antifreeze circulation vessel, the lower housing 3.

[0022] 容器是提供给防冻液流通循环的部件,由若干铝扁管4排列构成,铝扁管4截面为单孔或方形、圆形、多边形等多孔不规则形状,流通间隙为0.5〜50_,相邻的铝扁管4之间留有间隙,铝扁管4两端由铝集流管分别汇合,形成液体进口管道5、出口管道6,防冻液由进口管道5进入,然后分流进入各铝扁管4内,再由出口管道6流出,每个铝扁管4都是一个独立的流通通道,流量互不影响,受热互不影响,形状有利于快速升温。 [0022] The container member is provided to the antifreeze circulation cycle constituted by a plurality of flat tubes 4 arranged in aluminum, an aluminum flat tube 4 is a single-hole or a square cross-section, circular, polygonal, irregular porous, flow gap 0.5~50_ , 4 left between adjacent flat aluminum tube gap, both ends of the aluminum flat tubes 4 merge from aluminum headers respectively to form a liquid inlet pipe 5, an outlet conduit 6, antifreeze enters the inlet duct 5, and then split into the respective aluminum flat tubes 4, and flows out from the outlet pipe 6, each of the aluminum flat tube 4 is an independent flow path, the flow rate independently of each other, is heated independently of each other, a shape conducive to rapid heating. 该容器本身即是一个独立的部件,防冻液不会与PTC加热器芯体或其他部件产生直接接触,容器无需与其他部件进行密封,耐用防漏。 The container itself is a separate member, antifreeze no direct contact with the PTC heater core or other components, without the need for sealed containers, and other durable leakage preventing member.

[0023] PTC加热器芯体2插在铝扁管4之间的间隙中。 [0023] PTC heater core 2 is inserted in the gap between the aluminum flat tube 4. 下部壳体3套在容器外部并与上部壳体I固定,进口管道5、出口管道6穿过下部壳体3。 A lower housing 3 and upper housing sleeve fixed to I outside the container, an inlet pipe 5 and outlet pipe 6 through the lower housing 3.

[0024] PTC加热器芯体2与铝扁管4采用粘胶并通过夹具固定后加温固化,采用聚酰亚胺绝缘膜或氧化铝瓷片或硅胶片等其他绝缘材料隔开,确保水电分离。 [0024] PTC heater core 2 and the aluminum flat tube 4 through the use of glue and clamp fixing heat-curing using other insulating materials polyimide insulating film or an alumina silica ceramic sheet or the like spaced to ensure hydropower separation. 铝扁管4与铝集流管焊接或铆接连接或一体成型制成,具有良好的整体性,减少泄漏点。 Aluminum flat aluminum tube 4 and the header connector welding or riveting, or are integrally formed with good integrity, reduce the leakage point.

[0025] 由于汽车水箱容量有限,大多约为5L,防冻液反复加热冷却,如果不加以控制,对汽车会产生不良影响。 [0025] Due to the limited capacity of the tank cars, mostly about 5L, antifreeze repeated heating and cooling, if not controlled, will have adverse effects on the automobile. 而且汽车PTC液体电加热器工作中会产生冲击电流,如果没有相关的控制电路,大的冲击电流对电池、母线会产生不良影响,造成行车安全隐患,因此需要控制电流缓慢上升。 Liquid PTC electric heater and the car will have an impact current work, if there is no associated control circuitry, a large inrush current to the battery, the bus will have a negative impact, resulting in traffic safety problems, it is necessary to control the current to rise slowly.

[0026] —种上述的高效节能的新能源汽车PTC液体电加热器自动控制方法,调整控制器占空比来调节PTC加热器芯体发热功率以及实现控制器软启动,具体来说:通过不间断地实时检测PTC液体电加热器进出口水温,以判断需要增大或减小PTC加热器芯体发热功率,从而调整控制器占空比增大或减小,实现无级调节PTC液体电加热器发热功率;通过逐步增大控制器占空比以增大电流,实现调节控制器启动冲击电流的大小。 [0026] - new liquid energy vehicles PTC electric heater of the above method of automatic control of energy efficient, the controller adjusting the duty cycle to regulate the heating power of the PTC heater core and achieving soft start controller, specifically: by not intermittently real-time detection PTC electric heater export liquid temperature to determine need to increase or decrease the heating power of the PTC heater core, thereby adjusting the duty cycle of the controller increases or decreases, stepless adjustable electric liquid heating PTC is the heating power; gradually increased by the duty cycle to increase the current controller, the controller starts adjustment to achieve the size of surge current.

[0027] 现有新能源汽车PTC液体电加热器是采用温控器和传感器控制,功率调节为档位调节。 [0027] The PTC liquid prior new energy vehicles is the use of an electric heater and a sensor thermostat control for the power adjustment gear-regulating. 国外对于实现控制器软启动,采用的是控制PTC加热器芯体的数量逐步增加启动,来避免冲击电流。 Foreign achieving soft start controller, uses a number of controlling PTC heater core increases gradually start to avoid rush current. 本发明采用电子自动控制,实现对PTC液体电加热器的自我控制,能够智能化精确控制。 The present invention uses an electronic automatic control, self-control of the electric heater PTC liquid can be precisely controlled intelligent. 同时具备基本的电源防反、过压保护、欠压保护、超温保护、过流保护、限流保护、通讯等功能。 Along with basic anti-anti-power, overvoltage protection, undervoltage protection, over-temperature protection, overcurrent protection, current limiting protection, communications and other functions.

Claims (6)

  1. 1.一种高效节能的新能源汽车PTC液体电加热器,其特征在于:包括容纳控制元器件的上部壳体(I)、与所述上部(I)壳体相连的PTC加热器芯体(2)、盛放和流通防冻液的容器、下部壳体(3),所述容器由若干铝扁管(4)间隙排列构成,所述铝扁管(4)两端由铝集流管形成液体进口管道(5)、出口管道¢),所述PTC加热器芯体(2)插在所述铝扁管(4)之间的间隙中,所述下部壳体(3)套在所述容器外部并与所述上部壳体(I)固定,所述进口管道(5)、所述出口管道(6)穿过所述下部壳体(3)。 An energy efficient new energy vehicles PTC electric liquid heater comprising: a housing accommodating an upper control (I) component, and the PTC heater core upper portion (I) coupled to the housing ( 2), and circulation antifreeze accommodating container, the lower housing (3), said container (4) arranged in a gap of several aluminum flat tubes, the flat aluminum tube (4) is formed at both ends of an aluminum manifold the liquid inlet pipe (5), outlet conduit ¢), the PTC heater core (2) interposed in a gap between the (4) of the flat aluminum tube, the lower housing (3) in said sleeve and the outer container housing (I) with the fixed upper portion of the inlet duct (5), said outlet conduit (6) through said lower casing (3).
  2. 2.根据权利要求1所述的高效节能的新能源汽车PTC液体电加热器,其特征在于:所述铝扁管(4)截面为单孔或多孔不规则形状,流通间隙为0.5〜50_。 The energy-efficient new energy vehicles according to a PTC electric heater as claimed in claim liquid, wherein: the flat aluminum tube (4) is a single-hole or porous irregular cross-section shape, the flow gap 0.5~50_.
  3. 3.根据权利要求1所述的高效节能的新能源汽车PTC液体电加热器,其特征在于:所述PTC加热器芯体(2)与所述铝扁管(4)采用粘胶并通过夹具固定后加温固化。 The energy-efficient new energy vehicles according to a PTC electric heater as claimed in claim liquid, wherein: the PTC heater core (2) and the flat aluminum tube (4) and by using the adhesive jig after fixation heat curing.
  4. 4.根据权利要求1所述的高效节能的新能源汽车PTC液体电加热器,其特征在于:所述PTC加热器芯体(2)与所述铝扁管(4)采用聚酰亚胺绝缘膜或氧化铝瓷片或硅胶片绝缘隔开。 The energy-efficient new energy vehicles according to a PTC electric heater as claimed in claim liquid, wherein: the PTC heater core (2) and the flat aluminum tube (4) The polyimide insulating silica gel or alumina ceramic film or an insulating sheet spaced.
  5. 5.根据权利要求1所述的高效节能的新能源汽车PTC液体电加热器,其特征在于:所述铝扁管(4)与所述铝集流管焊接或铆接连接或一体成型制成。 The new energy vehicles PTC electric heater energy efficient liquid according to claim 1, wherein: the flat aluminum tube (4) is connected to the aluminum header welding or riveting, or are integrally formed.
  6. 6.—种权利要求1所述的高效节能的新能源汽车PTC液体电加热器自动控制方法,其特征在于:调整控制器占空比来调节PTC加热器芯体发热功率以及实现控制器软启动:通过不间断地实时检测PTC液体电加热器进出口水温,以判断需要增大或减小PTC加热器芯体发热功率,从而调整控制器占空比增大或减小,实现无级调节PTC液体电加热器发热功率;通过逐步增大控制器占空比以增大电流,实现调节控制器启动冲击电流的大小。 New energy vehicles PTC electric liquid heater automatic control of energy efficient method of claim 1 6.- kind claim, wherein: the controller to adjust the duty cycle to regulate the heating power of the PTC heater core and achieving soft start controller : continuously detected in real time by the electric heater PTC export liquid temperature to determine need to increase or decrease the heating power of the PTC heater core, thereby adjusting the duty cycle of the controller increases or decreases, stepless adjustment PTC An electric liquid heater heating power; gradually increased by the duty cycle to increase the current controller, the controller starts adjustment to achieve the size of surge current.
CN 201510593005 2015-09-17 2015-09-17 High-efficiency energy-saving electric heater for PTC liquid of new energy vehicle and automatic controlling method CN105091350A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070236883A1 (en) * 2006-04-05 2007-10-11 Javier Ruiz Electronics assembly having heat sink substrate disposed in cooling vessel
CN202648125U (en) * 2012-03-30 2013-01-02 陈苏红 Integrated heater for electrically heating hybrid vehicle and heating engine coolant
CN103344034A (en) * 2013-07-18 2013-10-09 东风汽车公司 High-voltage PTC liquid heater for automobile air conditioner system
CN204100538U (en) * 2014-08-04 2015-01-14 广东美的集团芜湖制冷设备有限公司 Heat exchange assembly and air conditioner
CN204547670U (en) * 2015-04-20 2015-08-12 河南工业职业技术学院 Electric automobile hot-water heating heater
CN204963232U (en) * 2015-09-17 2016-01-13 镇江东方电热科技股份有限公司 Energy -efficient new energy automobile PTC liquid electric heater

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070236883A1 (en) * 2006-04-05 2007-10-11 Javier Ruiz Electronics assembly having heat sink substrate disposed in cooling vessel
CN202648125U (en) * 2012-03-30 2013-01-02 陈苏红 Integrated heater for electrically heating hybrid vehicle and heating engine coolant
CN103344034A (en) * 2013-07-18 2013-10-09 东风汽车公司 High-voltage PTC liquid heater for automobile air conditioner system
CN204100538U (en) * 2014-08-04 2015-01-14 广东美的集团芜湖制冷设备有限公司 Heat exchange assembly and air conditioner
CN204547670U (en) * 2015-04-20 2015-08-12 河南工业职业技术学院 Electric automobile hot-water heating heater
CN204963232U (en) * 2015-09-17 2016-01-13 镇江东方电热科技股份有限公司 Energy -efficient new energy automobile PTC liquid electric heater

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