CN100384358C - food warmer - Google Patents

Abstract

Translated fromChinese

食品加热器，它涉及一种加热器。本发明解决了目前采用火焰加热方法加热食品存在费时、费力的问题；采用微波炉加热方法加热食品存在微波会对操作人员带来一定辐射，食品中的营养成分容易被破坏的问题；采用化学药剂方法加热食品，存在成本高，化学药剂易受潮失效，环境易污染的问题。本发明的壳体1上固定装有电机2，电机2的输出轴2-1通过联轴器3与转轴4相连接，转轴4上固定装有轴向转子铁芯7，轴向转子铁芯7上镶嵌有第一磁钢8，轴向转子铁芯7上端的转轴4上固定装有第一轴承9，第一轴承9的外端面上固定装有与壳体1固定连接的轴向上定子铁芯5，轴向上定子铁芯5上镶嵌有第一定子绕组6。本发明具有无污染、便于携带的优点。

A food heater relates to a heater. The invention solves the time-consuming and labor-intensive problems of using the flame heating method to heat food at present; the microwave heating method of microwave heating will bring certain radiation to the operator, and the nutritional components in the food are easily destroyed; the chemical agent method is adopted Heating food has the problems of high cost, easy moisture failure of chemical agents, and easy pollution of the environment. The housing 1 of the present invention is fixedly equipped with a motor 2, the output shaft 2-1 of the motor 2 is connected with the rotating shaft 4 through a coupling 3, and the rotating shaft 4 is fixedly equipped with an axial rotor core 7, and the axial rotor core 7 is inlaid with a first magnetic steel 8, the shaft 4 at the upper end of the axial rotor core 7 is fixed with a first bearing 9, and the outer end surface of the first bearing 9 is fixed with an axial shaft fixedly connected with the housing 1. The stator core 5 is embedded with the first stator winding 6 on the stator core 5 in the axial direction. The invention has the advantages of no pollution and portability.

Description

Translated fromChinese

食品加热器food warmer

技术领域：Technical field:

本发明涉及一种加热器，具体涉及一种食品加热器。The invention relates to a heater, in particular to a food heater.

背景技术：Background technique:

在人们的日常生活中，主要采用火焰加热方法、微波炉加热方法及化学药剂加热方法对食品进行加热。采用火焰加热方法加热食品存在费时、费力、污染环境，而且还要人为掌握食品加热温度的问题；采用微波炉加热方法加热食品存在微波会对操作人员带来一定的辐射，食品中的营养成分容易被破坏，电网易受干扰的问题；采用化学药剂方法加热食品，虽然可以达到无焰、无烟、方便的目的，但同时也会存在由于化学药剂一次性使用带来的成本高，化学药剂易受潮失效，并且要求在生产、运输、储存过程中严格密封，不易保管，使用后易造成环境污染的问题。In people's daily life, mainly adopt flame heating method, microwave oven heating method and chemical agent heating method to heat food. Using the flame heating method to heat food is time-consuming, laborious, polluting the environment, and the problem of artificially controlling the food heating temperature; using a microwave heating method to heat food, microwaves will bring a certain amount of radiation to the operator, and the nutrients in the food are easily destroyed. damage, and the power grid is susceptible to interference; using chemical agents to heat food, although it can achieve the purpose of no flame, no smoke, and convenience, but at the same time, there will be high costs due to the one-time use of chemicals, and the chemicals are easy to be affected by moisture. Ineffective, and require strict sealing in the process of production, transportation, and storage, it is not easy to keep, and it is easy to cause environmental pollution after use.

发明内容：Invention content:

本发明的目的是为解决目前采用火焰加热方法加热食品存在费时、费力、污染环境，食品加热温度不易掌握的问题；采用微波炉加热方法加热食品存在微波会对操作人员带来一定辐射，食品中的营养成分容易被破坏，电网易受干扰的问题；采用化学药剂方法加热食品，存在成本高，化学药剂易受潮失效，在生产、运输、储存过程中不易保管，使用后易造成环境污染的问题提供的一种食品加热器。它包括壳体1、电机2、联轴器3、转轴4、轴向上定子铁芯5、第一定子绕组6、轴向转子铁芯7、第一磁钢8、第一轴承9；壳体1的底座1-1上固定装有电机2，电机2的输出轴2-1通过联轴器3与转轴4相连接，转轴4上固定装有轴向转子铁芯7，轴向转子铁芯7上的轴向通孔7-1内镶嵌有第一磁钢8，轴向转子铁芯7上端的转轴4上固定装有第一轴承9，第一轴承9的外端面上固定装有与壳体1的侧壁固定连接的轴向上定子铁芯5，轴向上定子铁芯5下端面的环槽5-1内镶嵌有第一定子绕组6，轴向上定子铁芯5的下端面与轴向转子铁芯7的上端面之间具有间隙H1。The purpose of the present invention is to solve the problems of time-consuming, labor-intensive, environment-polluting, and difficult-to-control food heating temperature in the current method of heating food by flame heating method; the presence of microwaves in food heating by microwave oven will bring certain radiation to the operator, and the food in the food Nutrients are easily destroyed, and the power grid is easily disturbed; the use of chemical agents to heat food has high costs, and chemical agents are prone to moisture failure, difficult to keep during production, transportation, and storage, and easy to cause environmental pollution after use. Provided A food heater. It includes ahousing 1, amotor 2, acoupling 3, a rotatingshaft 4, anaxial stator core 5, a first stator winding 6, anaxial rotor core 7, a firstmagnetic steel 8, and afirst bearing 9; Themotor 2 is fixedly mounted on the base 1-1 of thehousing 1, the output shaft 2-1 of themotor 2 is connected with the rotatingshaft 4 through thecoupling 3, theaxial rotor core 7 is fixedly installed on the rotatingshaft 4, and the axial rotor The axial through hole 7-1 on theiron core 7 is inlaid with the firstmagnetic steel 8, and the rotatingshaft 4 at the upper end of the axialrotor iron core 7 is fixedly equipped with the first bearing 9, and the outer end surface of thefirst bearing 9 is fixedly installed. There is an axiallyupward stator core 5 fixedly connected to the side wall of thehousing 1, the first stator winding 6 is embedded in the ring groove 5-1 of the lower end surface of the axiallyupward stator core 5, and the axiallyupward stator core 5 There is a gap H1 between the lower end surface of 5 and the upper end surface of theaxial rotor core 7 .

本发明具有以下有益效果：一、本发明通过电机和联轴器将动力传递给转轴，并通过转轴带动轴向转子铁芯旋转。由于轴向转子铁芯上的轴向通孔内镶嵌有磁钢，轴向上定子铁芯下端面的环槽内镶嵌有第一定子绕组。当轴向转子铁芯旋转时，轴向上定子铁芯切割磁力线，使轴向上定子铁芯中的第一定子绕组产生感应电势，形成短路电流，轴向上定子铁芯中产生磁滞和涡流的热效应。利用磁滞、涡流和二次感应电流发热原理，使与壳体固定连接的轴向上定子铁芯发热，从而实现对食品底面的加热。二、由于本发明是利用磁滞、涡流和二次感应电流发热原理对食品进行加热的，因而使用本产品不会对操作人员带来任何伤害，电网不会受到干扰；同时也不会破坏食品中的营养成分。三、轴向上定子铁芯的下端面与轴向转子铁芯的上端面之间留有间隙H1，不仅可保证轴向转子铁芯旋转灵活、自如，而且还可使轴向上定子铁芯中的第一定子绕组产生较强的感应电势。四、采用电机作为驱动动力，通过自动调节电机的输出转速，即可对该食品加热器进行高温、中温、低温以及恒温温度的控制，控制十分方便。五、本产品具有结构简单、成本低、体积小、寿命长、无污染、效率高、便于携带的优点，使用本产品对食品进行加热可省时、省力、方便、快捷。The present invention has the following beneficial effects: 1. The present invention transmits power to the rotating shaft through the motor and the coupling, and drives the axial rotor core to rotate through the rotating shaft. Because the magnetic steel is embedded in the axial through hole on the axial rotor core, the first stator winding is embedded in the annular groove on the lower end surface of the stator core in the axial direction. When the axial rotor core rotates, the axial upper stator core cuts the magnetic force line, so that the first stator winding in the axial upper stator core generates an induced potential, forming a short-circuit current, and generates a magnetic hysteresis in the axial upper stator core and thermal effects of eddy currents. Utilizing the heating principle of hysteresis, eddy current and secondary induction current, the axial stator core fixedly connected with the housing is heated, thereby realizing the heating of the bottom surface of the food. 2. Since the present invention uses the heating principle of hysteresis, eddy current and secondary induction current to heat the food, the use of this product will not cause any harm to the operator, and the power grid will not be disturbed; at the same time, it will not damage the food nutrients in. 3. There is a gap H1 between the lower end surface of the axial stator core and the upper end surface of the axial rotor core, which not only ensures the flexible and free rotation of the axial rotor core, but also makes the axial stator core The first stator winding in the generator produces a strong induced potential. 4. Using the motor as the driving power, by automatically adjusting the output speed of the motor, the food heater can be controlled at high temperature, medium temperature, low temperature and constant temperature, and the control is very convenient. 5. This product has the advantages of simple structure, low cost, small size, long life, no pollution, high efficiency, and portability. Using this product to heat food can save time, effort, convenience and speed.

附图说明：Description of drawings:

图1是本发明的总体剖面结构示意图；图2是轴向上定子铁芯5与第一定子绕组6装配在一起的主视剖面结构示意图，图3是图2的仰视结构示意图，图4是轴向下定子铁芯11与第二定子绕组12装配在一起的主视剖面结构示意图，图5是图4的俯视结构示意图，图6是轴向转子铁芯7与第一磁钢8装配在一起的主视剖面结构示意图，图7是图6的俯视结构示意图，图8是径向定子铁芯14与第三定子绕组15装配在一起的主视剖面结构示意图，图9是图8的A-A剖面结构示意图，图10是径向转子铁芯13与第二磁钢16装配在一起的主视剖面结构示意图，图11是图10的B-B剖面结构示意图。Fig. 1 is a schematic diagram of the overall sectional structure of the present invention; Fig. 2 is a schematic diagram of a front sectional structure in which thestator core 5 and thefirst stator winding 6 are assembled together in the axial direction; Fig. 3 is a schematic diagram of the bottom view of Fig. 2; Fig. 4 It is a front view sectional structure schematic diagram of axiallylower stator core 11 and second stator winding 12 assembled together, FIG. 5 is a top view structural schematic diagram of FIG. 7 is a schematic diagram of a top view of FIG. 6, and FIG. 8 is a schematic diagram of a front section of aradial stator core 14 assembled with a third stator winding 15. FIG. A-A sectional structure schematic diagram, FIG. 10 is a front view sectional structural schematic diagram of theradial rotor core 13 assembled with the secondmagnetic steel 16, and FIG. 11 is a B-B sectional structural schematic diagram of FIG. 10 .

具体实施方式：Detailed ways:

具体实施方式一：结合图1说明本实施方式，本实施方式由壳体1、电机2、联轴器3、转轴4、轴向上定子铁芯5、第一定子绕组6、轴向转子铁芯7、第一磁钢8、第一轴承9组成；壳体1的底座1-1上固定装有电机2，电机2的输出轴2-1通过联轴器3与转轴4相连接，转轴4上固定装有轴向转子铁芯7，轴向转子铁芯7上的轴向通孔7-1内镶嵌有第一磁钢8，轴向转子铁芯7上端的转轴4上固定装有第一轴承9，第一轴承9的外端面上固定装有与壳体1的侧壁固定连接的轴向上定子铁芯5，轴向上定子铁芯5下端面的环槽5-1内镶嵌有第一定子绕组6，轴向上定子铁芯5的下端面与轴向转子铁芯7的上端面之间具有间隙H1。Specific Embodiment 1: This embodiment is described in conjunction with FIG. 1. This embodiment consists of ahousing 1, amotor 2, acoupling 3, a rotatingshaft 4, anaxial stator core 5, a first stator winding 6, and an axial rotor. Theiron core 7, the firstmagnetic steel 8, and the first bearing 9 are composed; the base 1-1 of thehousing 1 is fixed with amotor 2, and the output shaft 2-1 of themotor 2 is connected with therotating shaft 4 through acoupling 3, An axialrotor iron core 7 is fixedly installed on the rotatingshaft 4, and a firstmagnetic steel 8 is inlaid in the axial through hole 7-1 on the axialrotor iron core 7, and the rotatingshaft 4 at the upper end of the axialrotor iron core 7 is fixedly installed. There is a first bearing 9, the outer end surface of the first bearing 9 is fixedly equipped with an axiallyupward stator core 5 fixedly connected to the side wall of thehousing 1, and the ring groove 5-1 on the lower end surface of the axiallyupward stator core 5 The first stator winding 6 is embedded therein, and there is a gap H1 between the lower end surface of thestator core 5 in the axial direction and the upper end surface of therotor core 7 in the axial direction.

具体实施方式二：结合图1说明本实施方式，本实施方式与具体实施方式一的不同点是：本实施方式还增加有第二轴承10、轴向下定子铁芯11、第二定子绕组12；第二轴承10固定装在轴向转子铁芯7下端的转轴4上，第二轴承10的外端面上固定装有与壳体1的侧壁固定连接的轴向下定子铁芯11，轴向下定子铁芯11上端面的环槽11-1内镶嵌有第二定子绕组12，轴向下定子铁芯11的上端面与轴向转子铁芯7的下端面之间具有间隙H2。为了提高食品底面的加热温度，在轴向转子铁芯7的下端面的转轴4上装有轴向下定子铁芯11，并且在轴向下定子铁芯11上端面的环槽11-1内镶嵌有第二定子绕组12，当轴向转子铁芯7旋转时，轴向下定子铁芯11切割磁力线，轴向下定子铁芯11中的第二定子绕组12产生感应电势形成短路电流，使轴向下定子铁芯11中产生磁滞和涡流的热效应，利用磁滞、涡流和二次感应电流发热原理，使与壳体1固定连接的轴向下定子铁芯11发热，从而完成对食品底面的加热；并由轴向转子铁芯7的转速控制轴向下定子铁芯11的温度；同时，为了使轴向转子铁芯7旋转灵活、自如，使轴向下定子铁芯11中的第二定子绕组12产生较强的感应电势，将轴向下定子铁芯11的上端面与轴向转子铁芯7的下端面之间留有间隙H2。Specific embodiment 2: This embodiment is described with reference to FIG. 1 . The difference between this embodiment andspecific embodiment 1 is: this embodiment also adds a second bearing 10 , an axiallylower stator core 11 , and a second stator winding 12 The second bearing 10 is fixedly installed on the rotatingshaft 4 at the lower end of the axialrotor iron core 7, and the outer end surface of the second bearing 10 is fixedly equipped with an axial lowerstator iron core 11 fixedly connected with the side wall of thehousing 1. The second stator winding 12 is embedded in the annular groove 11 - 1 on the upper end surface of thedownward stator core 11 , and there is a gap H2 between the upper end surface of the axialdownward stator core 11 and the lower end surface of theaxial rotor core 7 . In order to increase the heating temperature of the bottom surface of the food, an axial lowerstator iron core 11 is installed on the rotatingshaft 4 on the lower end surface of the axialrotor iron core 7, and is embedded in the annular groove 11-1 on the upper end surface of the axial lowerstator iron core 11. There is a second stator winding 12. When theaxial rotor core 7 rotates, the axiallower stator core 11 cuts the magnetic force lines, and the second stator winding 12 in the axiallower stator core 11 generates an induced potential to form a short-circuit current, making the shaft The thermal effect of hysteresis and eddy current is generated in the downwardstator iron core 11. Using the heating principle of hysteresis, eddy current and secondary induced current, the axial lowerstator iron core 11 fixedly connected with thehousing 1 generates heat, thereby completing the heating of the bottom surface of the food. and the temperature of the loweraxial stator core 11 is controlled by the rotating speed of theaxial rotor core 7; at the same time, in order to make theaxial rotor core 7 rotate flexibly and freely, the first axiallower stator core 11 The second stator winding 12 generates a strong induced potential, leaving a gap H2 between the upper end surface of the axiallower stator core 11 and the lower end surface of theaxial rotor core 7 .

具体实施方式三：结合图1说明本实施方式，本实施方式与具体实施方式一、具体实施方式二的不同点是：本实施方式还增加有径向转子铁芯13、径向定子铁芯14、第三定子绕组15、第二磁钢16、支架17；径向转子铁芯13固定装在轴向下定子铁芯11与联轴器3之间的转轴4上，径向转子铁芯13的外圆周端面的通孔13-1内镶嵌有第二磁钢16，径向转子铁芯13的内腔中装有径向定子铁芯14，径向定子铁芯14的外圆周端面的环槽14-1内镶嵌有第三定子绕组15，径向定子铁芯14分别与轴向上定子铁芯5的外圆周端面和轴向下定子铁芯11的外圆周环槽固定连接，径向定子铁芯14的外圆周端面与径向转子铁芯13的内圆周端面之间具有间隙H3，壳体1的上端面和径向定子铁芯14的上端面固定装有支架17。本实施方式能对食品多方位进行加热，增加了径向转子铁芯13和径向定子铁芯14，并且在径向转子铁芯13中镶嵌有第二磁钢16，在径向定子铁芯14中镶嵌有第三定子绕组15，当径向转子铁芯13旋转时，径向定子铁芯14切割磁力线，径向定子铁芯14中的第三定子绕组15产生感应电势形成短路电流，使径向定子铁芯14中产生磁滞和涡流的热效应，利用磁滞、涡流和二次感应电流发热原理，在完成对食品底面加热的同时，完成对食品侧面(径向)的加热，径向定子铁芯14的温度由径向转子铁芯13的转速控制，对温度要求较高的食品加热可以采用定温加热；同时，为了使径向转子铁芯13旋转灵活、自如，使径向定子铁芯14中的第三定子绕组15产生较强的感应电势，将径向定子铁芯14的外圆周端面与径向转子铁芯13的内圆周端面之间留有间隙H3。Specific embodiment 3: This embodiment is described in conjunction with FIG. 1 . The difference between this embodiment andspecific embodiment 1 andspecific embodiment 2 is that this embodiment also adds aradial rotor core 13 and aradial stator core 14. , the third stator winding 15, the secondmagnetic steel 16, thebracket 17; theradial rotor core 13 is fixed on the rotatingshaft 4 between the axiallylower stator core 11 and theshaft coupling 3, theradial rotor core 13 The secondmagnetic steel 16 is inlaid in the through hole 13-1 of the outer circumferential end face of the radialrotor iron core 13, and the radialstator iron core 14 is housed in the inner cavity of the radialrotor iron core 13, and the ring of the outer circumferential end face of the radialstator iron core 14 The third stator winding 15 is embedded in the slot 14-1, and theradial stator core 14 is fixedly connected with the outer circumferential end surface of the axiallyupper stator core 5 and the outer circumferential groove of the axiallylower stator core 11 respectively. There is a gap H3 between the outer circumferential end surface of thestator core 14 and the inner circumferential end surface of theradial rotor core 13 , and abracket 17 is fixedly mounted on the upper end surface of thehousing 1 and the upper end surface of theradial stator core 14 . This embodiment can heat food in multiple directions, adding a radialrotor iron core 13 and a radialstator iron core 14, and a secondmagnetic steel 16 is embedded in the radialrotor iron core 13, and a secondmagnetic steel 16 is embedded in the radial stator iron core. 14 is inlaid with a third stator winding 15. When theradial rotor core 13 rotates, theradial stator core 14 cuts the magnetic field lines, and the third stator winding 15 in theradial stator core 14 generates an induced potential to form a short-circuit current, so that The thermal effects of hysteresis and eddy current are generated in theradial stator core 14, and the heating principle of hysteresis, eddy current and secondary induced current is used to heat the bottom surface of the food while heating the side (radial) of the food. The temperature of thestator core 14 is controlled by the rotating speed of theradial rotor core 13, and heating at a constant temperature can be used for heating foods with higher temperature requirements; meanwhile, in order to make theradial rotor core 13 rotate flexibly and freely, the radial stator core The third stator winding 15 in thecore 14 generates a strong induced potential, leaving a gap H3 between the outer circumferential end surface of theradial stator core 14 and the inner circumferential end surface of the radialrotor iron core 13 .

具体实施方式四：结合图1说明本实施方式，本实施方式与具体实施方式一、具体实施方式二的不同点是：本实施方式的轴向转子铁芯7的上端面与轴向上定子铁芯5的下端面之间的间隙H1和轴向下定子铁芯11的上端面与轴向转子铁芯7的下端面之间的间隙H2相等，轴向转子铁芯7的上端面与轴向上定子铁芯5的下端面之间的间隙H1和轴向下定子铁芯11的上端面与轴向转子铁芯7的下端面之间的间隙H2为0.5～1mm。采用上述的技术方案，不仅可保证轴向转子铁芯7转动灵活，同时还可保证轴向上定子铁芯5上的第一定子绕组6和轴向下定子铁芯11上的第二定子绕组12产生相一致的感应电势，形成相同的短路电流，使轴向上定子铁芯5和轴向下定子铁芯11产生相同的磁滞和涡流的热效应。Embodiment 4: This embodiment is described in conjunction with FIG. 1 . The difference between this embodiment andEmbodiment 1 andEmbodiment 2 is that the upper end surface of theaxial rotor core 7 of this embodiment is connected to the axially upward stator iron core. The gap H1 between the lower end surface of thecore 5 and the gap H2 between the upper end surface of the axiallylower stator core 11 and the lower end surface of theaxial rotor core 7 are equal, and the upper end surface of theaxial rotor core 7 is aligned with the axial The gap H1 between the lower end surface of theupper stator core 5 and the gap H2 between the upper end surface of the axiallylower stator core 11 and the lower end surface of theaxial rotor core 7 are 0.5-1 mm. The above-mentioned technical scheme can not only ensure the flexible rotation of theaxial rotor core 7, but also ensure the first stator winding 6 on the axiallyupper stator core 5 and the second stator winding 6 on the axiallylower stator core 11. Thewinding 12 generates the same induced potential, forms the same short-circuit current, and causes the axiallyupper stator core 5 and the axiallylower stator core 11 to generate the same hysteresis and thermal effect of eddy current.

具体实施方式五：结合图1说明本实施方式，本实施方式与具体实施方式三的不同点是：本实施方式的径向定子铁芯14的外圆周端面与径向转子铁芯13的内圆周端面之间的间隙H3为0.5～1mm。径向定子铁芯14与径向转子铁芯13之间的间隙H3在此数值范围内选取，不仅可保证径向转子铁芯13转动灵活、自如，还可使径向定子铁芯14中的第三定子绕组15产生极强的感应电势，使径向定子铁芯14产生与轴向上定子铁芯5和轴向下定子铁芯11相同的磁滞和涡流的热效应。Embodiment 5: This embodiment is described in conjunction with FIG. 1 . The difference between this embodiment andEmbodiment 3 is: the outer circumferential end face of theradial stator core 14 of this embodiment and the inner circumference of theradial rotor core 13 The gap H3 between the end faces is 0.5-1 mm. The gap H3 between theradial stator core 14 and theradial rotor core 13 is selected within this value range, which can not only ensure the flexible and free rotation of theradial rotor core 13, but also make the gap H3 in theradial stator core 14 The third stator winding 15 generates a very strong induced potential, causing theradial stator core 14 to produce the same thermal effect of hysteresis and eddy current as the axiallyupper stator core 5 and the axiallylower stator core 11 .

具体实施方式六：结合图2、图3说明本实施方式，本实施方式的第一定子绕组6的线圈首尾相连并沿轴向上定子铁芯5的下端面环形分布。可保证轴向上定子铁芯5中产生均匀的磁滞和涡流的热效应，使轴向上定子铁芯5的受热面温度均匀一致。其它组成及连接关系与具体实施方式一相同。Embodiment 6: This embodiment is described with reference to FIG. 2 and FIG. 3 . In this embodiment, the coils of the first stator winding 6 are connected end-to-end and arranged in a ring along the lower end surface of thestator core 5 in the axial direction. It can ensure uniform magnetic hysteresis and eddy current thermal effect in thestator core 5 in the axial direction, so that the temperature of the heating surface of thestator core 5 in the axial direction is uniform. Other components and connections are the same as those in the first embodiment.

具体实施方式七：结合4、图5说明本实施方式，本实施方式的第二定子绕组12的线圈首尾相连并沿轴向下定子铁芯11的上端面环形分布。可保证轴向下定子铁芯11中产生均匀的磁滞和涡流的热效应，使轴向下定子铁芯11的受热面温度均匀一致，并且与轴向上定子铁芯5协同作用，从而保证了被加热食品的底面温度一致。其它组成及连接关系与具体实施方式二相同。Embodiment 7: This embodiment is described with reference to FIG. 4 and FIG. 5 . The coils of the second stator winding 12 in this embodiment are connected end to end and arranged in a ring along the upper end surface of thestator core 11 axially. It can ensure uniform hysteresis and eddy current thermal effect in the loweraxial stator core 11, make the temperature of the heating surface of the loweraxial stator core 11 uniform, and cooperate with the upperaxial stator core 5, thereby ensuring The temperature of the bottom surface of the heated food is consistent. Other components and connections are the same as those in the second embodiment.

具体实施方式八：结合图6、图7说明本实施方式，本实施方式的第一磁钢8沿轴向转子铁芯7的上端面均匀分布。可保证轴向上定子铁芯5和轴向下定子铁芯11均匀切割磁力线。其它组成及连接关系与具体实施方式一相同。Embodiment 8: This embodiment is described with reference to FIG. 6 and FIG. 7 . The firstmagnetic steel 8 of this embodiment is evenly distributed along the upper end surface of therotor core 7 in the axial direction. It can ensure that the axiallyupper stator core 5 and the axiallylower stator core 11 evenly cut the magnetic lines of force. Other components and connections are the same as those in the first embodiment.

具体实施方式九：结合图10、图11说明本实施方式，本实施方式的第二磁钢16沿径向转子铁芯13的外圆周端面均匀分布。可保证径向定子铁芯14均匀切割磁力线。其它组成及连接关系与具体实施方式三相同。Embodiment 9: This embodiment is described with reference to FIG. 10 and FIG. 11 . The secondmagnetic steel 16 of this embodiment is evenly distributed along the outer circumferential end surface of therotor core 13 in the radial direction. It can ensure that theradial stator core 14 evenly cuts the magnetic lines of force. Other components and connections are the same as those in the third embodiment.

具体实施方式十：结合图8、图9说明本实施方式，本实施方式的第三定子绕组15的线圈首尾相连并沿径向定子铁芯14的外圆周端面环形分布。可保证径向定子铁芯14中产生均匀的磁滞和涡流的热效应，使径向定子铁芯14的侧壁温度均匀一致，从而达到了从多方位加热食品的目的。Embodiment 10: This embodiment is described with reference to FIG. 8 and FIG. 9 . The coils of the third stator winding 15 in this embodiment are connected end-to-end and distributed in a ring along the outer circumferential end surface of thestator core 14 in the radial direction. It can ensure uniform magnetic hysteresis and eddy current thermal effect in theradial stator core 14, so that the temperature of the side wall of theradial stator core 14 is uniform, thereby achieving the purpose of heating food from multiple directions.

使用时，将要加热的食品放在轴向上定子铁芯5的上端面上即可，温度由电机2的转速控制。镶嵌在轴向上定子铁芯5的下端面环槽5-1内的第一定子绕组6的线圈、镶嵌在轴向下定子铁芯11的上端面环槽11-1内的第二定子绕组12的线圈及镶嵌在径向定子铁芯14的外圆周端面环槽14-1内的第三定子绕组15的线圈均由铜线绕制而成或由铜板冲压而成，并首尾焊接成短路状态。When in use, the food to be heated can be placed on the upper end surface of thestator iron core 5 in the axial direction, and the temperature is controlled by the rotating speed of themotor 2 . The coil of the first stator winding 6 embedded in the lower end surface ring groove 5-1 of the axiallylower stator core 5, and the second stator coil embedded in the upper end surface ring groove 11-1 of the axiallylower stator core 11 The coil of the winding 12 and the coil of the third stator winding 15 embedded in the outer circumferential end face ring groove 14-1 of theradial stator core 14 are all wound by copper wire or stamped by copper plate, and welded end to end. short circuit condition.

Claims (10)

1. food heater, it comprises housing (1), motor (2), shaft coupling (3), rotating shaft (4), axially goes up stator core (5), first stator winding (6), axial rotor iron core (7), first magnet steel (8), clutch shaft bearing (9); The base (1-1) that it is characterized in that housing (1) upward fixedly is equipped with motor (2), the output shaft (2-1) of motor (2) is connected with rotating shaft (4) by shaft coupling (3), rotating shaft (4) is gone up axial rotor iron core (7) fixedly is housed, be inlaid with first magnet steel (8) in the axially extending bore (7-1) on the axial rotor iron core (7), the rotating shaft (4) of axial rotor iron core (7) upper end is gone up clutch shaft bearing (9) fixedly is housed, the axial stator core (5) of going up of fixedlying connected with the sidewall of housing (1) fixedly is housed on the outer face of clutch shaft bearing (9), axially go up in the annular groove (5-1) of lower surface of stator core (5) and be inlaid with first stator winding (6), axially go up between the upper surface of the lower surface of stator core (5) and axial rotor iron core (7) and have gap (H1).

2. food heater according to claim 1 is characterized in that it also comprises second bearing (10), axially descends stator core (11), second stator winding (12); Second bearing (10) is installed in the rotating shaft (4) of axial rotor iron core (7) lower end, the axial stator core (11) down of fixedlying connected with the sidewall of housing (1) fixedly is housed on the outer face of second bearing (10), axially down be inlaid with second stator winding (12) in the annular groove (11-1) of the upper surface of stator core (11), axially descend between the lower surface of the upper surface of stator core (11) and axial rotor iron core (7) to have gap (H2).

3. food heater according to claim 2 is characterized in that it also comprises radial rotor iron core (13), radial stator iron core (14), the 3rd stator winding (15), second magnet steel (16), support (17); Radial rotor iron core (13) is installed on axially in the rotating shaft (4) between stator core (11) and the shaft coupling (3) down, be inlaid with second magnet steel (16) in the through hole (13-1) of the excircle end face of radial rotor iron core (13), radial stator iron core (14) is housed in the inner chamber of radial rotor iron core (13), be inlaid with the 3rd stator winding (15) in the annular groove (14-1) of the excircle end face of radial stator iron core (14), radial stator iron core (14) is fixedlyed connected with the axial excircle annular groove of stator core (11) down with the excircle end face of axially going up stator core (5) respectively, have gap (H3) between the inner periphery end face of the excircle end face of radial stator iron core (14) and radial rotor iron core (13), support (17) fixedly is equipped with in the upper surface of the upper surface of housing (1) and radial stator iron core (14).

4. food heater according to claim 2, gap (H1) between the upper surface that it is characterized in that axial rotor iron core (7) and the lower surface of axially going up stator core (5) and axially down the gap (H2) between the lower surface of the upper surface of stator core (11) and axial rotor iron core (7) equate, the gap (H1) between the lower surface of the upper surface of axial rotor iron core (7) and axial upward stator core (5) and axial under gap (H2) between the lower surface of the upper surface of stator core (11) and axial rotor iron core (7) be 0.5～1mm.

5. food heater according to claim 3 is characterized in that the gap (H3) between the inner periphery end face of the excircle end face of radial stator iron core (14) and radial rotor iron core (13) is 0.5～1mm.

6. food heater according to claim 1, the coil that it is characterized in that first stator winding (6) join end to end and the lower surface annular spread of stator core (5) vertically.

7. food heater according to claim 2, the coil that it is characterized in that second stator winding (12) join end to end and descend the upper surface annular spread of stator core (11) vertically.

8. food heater according to claim 1 is characterized in that first magnet steel (8) evenly distributes the upper surface of rotor core (7) vertically.

9. food heater according to claim 3, it is characterized in that second magnet steel (16) radially the excircle end face of rotor core (13) evenly distribute.

10. food heater according to claim 3, the coil that it is characterized in that the 3rd stator winding (15) join end to end and the excircle end face annular spread of stator core (14) radially.

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