CN210093589U - Heater of electric milk stirrer - Google Patents

Abstract

The utility model discloses an electronic heater that stirs milk ware, the heater includes oval basal disc, sets up many of oval basal disc lower surface generate heat the orbit layer, cover the through-hole that the orbit layer surface that generates heat the layer and establish oval basal disc center as heating element's thick film at the orbit layer surface that generates heat, is provided with and in the idle region on same diameter in the both sides of through-hole, and this idle region is radially extended to oval basal disc by the through-hole edge, and every orbit layer that generates heat is just to be concentric arc setting to the edge by the center of oval basal disc on the lower surface of oval basal disc the upper surface of oval basal disc is provided with support piece. The utility model discloses a heater simple structure, withstand voltage, thermal shock resistance are stronger, can guarantee the stability and the reliability of resistance layer structure, have solved the stirring sword simultaneously and have been difficult to dismantle and abluent problem.

Description

Heater of electric milk stirrer

Technical Field

The utility model belongs to the technical field of the heater, especially, relate to a heater of electronic milk ware that stirs.

Background

The thick film heater is a novel heating device formed by printing insulating medium, heating resistor, heat conductor and other materials on a substrate and sintering at high temperature by adopting a thick film screen printing process, and is widely applied to electric kettles, electric coffee kettles, electric milk mixers, electric water heaters, electric power generating boards, electric irons and the like. Compared with the traditional electric heating wire heater, the thick film heater has the characteristics of high power density, good heat conduction performance, large heat dissipation area and high safety performance.

The thick film heater used in the traditional milk whisk is not designed with a special stirring tool, so that the milk whisk can only stir alone, and cannot stir and heat simultaneously, therefore, the using effect is poor, and the requirements of people cannot be met; because the space that the thick film heater used is less for the heat exchange limitation of thick film heater is on a face of hot plate, the heating sets up on the heater with the stirring, be difficult to ensure the problem of the good work of stirring sword, the stirring sword is difficult to dismantle and abluent problem, and simultaneously, the temperature of central heating and the marginal heating temperature nonconformity often appear, it is not good to dispel the heat, the accumulational problem of heat appears, the heating that leads to whole heater is inhomogeneous, consequently, need design out the higher thick film heater who stirs the milk ware of a security.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a heater of electronic milk ware that stirs, the utility model discloses a heater simple structure, withstand voltage, thermal shock resistance are stronger, can guarantee the stability and the reliability of resistance layer structure, and the heat that produces when the resistance layer generates heat can be conducted fast on the insulation thick film heat-conducting layer, and the intensification time is fast, has saved the time of generating heat greatly, and the power of generating heat is stable; the surface of the functional film layer is provided with the protective film layer, which is beneficial to cleaning and protecting the whole heater, can quickly realize batch production, and can better control the precision and the stability. In order to realize the purpose, the utility model discloses a following technological effect:

according to an aspect of the utility model, a heater of electronic milk ware that stirs is provided, its characterized in that: the heater includes oval basal disc, sets up many of oval basal disc lower surface generate heat the orbit layer, cover and generate heat the orbit layer surface as heating element's thick film and generate heat the layer and establish the through-hole at oval basal disc center at the orbit layer that generates heat, be provided with in the both sides of through-hole and in the idle region on same diameter, this idle region is radially extended to oval basal disc by the through-hole edge, and every track layer that generates heat is just to be concentric arc setting by the center of oval basal disc to the edge on the lower surface of oval basal disc the upper surface of oval basal disc is provided with support piece.

Preferably, the hot track layer uses idle region to set up at the lower surface of oval-shaped base plate as axial symmetry, and the edge setting of oval-shaped base plate is just close oval shape along an outermost heating track layer to surround thick film heating layer in an outermost heating track layer.

Preferably, the thick film layer that generates heat has resistive layer, conductor layer, glass layer including printing the dielectric layer of oval basal disc lower surface and printing on the surface of dielectric layer be provided with electrode layer and power identification layer on the dielectric layer of the surface in the idle zone, this electrode layer and power identification layer are located the through-hole both sides, the head and the tail both ends of resistive layer are connected respectively the electrode layer, the dielectric layer is printed and is being close to the edge of through-hole with be close to between the edge of oval basal disc, the resistive layer sets up along every track layer that generates heat, and the tip of adjacent resistive layer passes through conductor layer series connection.

Preferably, the spacing distance between the resistance layers in each heating trace layer is not more than 0.8mm, the thickness of the dielectric layer is not more than 100 μm, and the thickness of the resistance layer is not more than 20 μm.

Preferably, the supporting member is a cap-shaped body made of stainless steel material, the supporting member protrudes upward from the edge of the through hole, and the open end of the supporting member and the through hole are fixed by welding.

In a further preferable mode of the above solution, the supporting member is a solid cylinder made of stainless steel, the supporting member protrudes from the inside of the through hole to the outside, the cross section of the lower end of the supporting member is a concave curved surface protruding to the protruding direction, and the lower end of the supporting member is fixed to the edge of the through hole by welding.

Preferably, a set of lugs which are symmetrical with each other by taking the through hole as the center are arranged on the edges of the two sides of the oval base plate.

Preferably, the outer edge of the lower surface of the oval base plate is further provided with an encapsulating layer, and the encapsulating layer is arranged between the outer edge of the thick film heating layer and the outer edge of the oval base plate.

To sum up, because the utility model adopts the above technical scheme, the utility model discloses following technological effect has:

(1) the utility model discloses an oval basal disc adopts stainless steel substrate and prepares each functional film layer in one side, the coefficient of heat conductivity is high, small, compact structure, it is withstand voltage, thermal shock resistance is stronger, can bear 3800V's insulating high-pressure test, print dielectric layer and resistance layer on the substrate layer in proper order, the resistance layer that generates heat uses series resistance structure, the resistance body distributes rationally, it is even to generate heat, the thermal effect is high, safety and reliability, long service life, the surface of functional film layer is equipped with glass layer protective film, be favorable to cleaning and protecting whole heater, the production technology is simple, low cost, can realize the mass production fast;

(2) the utility model discloses a thickness of resistance layer is less than the thickness of dielectric layer, and dielectric layer coefficient of heat conductivity is high, can guarantee the stability and the reliability of resistance layer structure, and the heat that produces when the resistance layer generates heat can conduct fast on the dielectric layer, and the intensification time is fast, has saved the time of generating heat greatly, and the power of generating heat is stable.

(3) The utility model discloses a traditional dish that generates heat of taking the stirring sword of effective solution of heater is equipped with the structure that parts such as bearing housing and bearing retainer plate lead to complicated, the installation inconvenient, manufacturing cost is high, be difficult to ensure the problem of the good work of stirring sword to solved the stirring sword and be difficult to dismantle and abluent problem.

Drawings

Fig. 1 is a schematic structural view of a heater of an electric milk mixer of the present invention;

FIG. 2 is a schematic view of the bottom surface explosion structure of the oval base plate of the present invention;

FIG. 3 is a schematic view of the bottom structure of the oval base plate of the present invention;

FIG. 4 is a schematic cross-sectional view of a heater of an electric milk mixer according to a first embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a heater of an electric milk mixer according to a second embodiment of the present invention;

FIG. 6 is a simple schematic view of the electric milk stirrer of the present invention;

in the drawing, an oval substrate 1, a heating track layer 2, a thick film heating layer 3, a support cap 4, a lug 5, an encapsulating layer 6, a through hole 10, a dielectric layer 30, a resistance layer 31, a conductor layer 32, a glass layer 33, a concave curved surface 40, a stirring cup body 100, a stirring cylinder body 101, a base 102, a direct current motor 103, a magnetic ring 103a, a control panel 104, a stirring seat 105, a stirring knife 105a and a conducting strip 106.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and by referring to preferred embodiments. It should be understood, however, that the numerous specific details set forth in the specification are merely set forth to provide a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.

As shown in fig. 1, 2 and 3, the heater of the electric milk stirrer according to the present invention comprises an oval base plate 1, a plurality of heating track layers 2 disposed on the lower surface of the oval base plate 1, a thick film heating layer 3 covering the surface of the heating track layers 2 as a heating element, and a through hole 10 disposed in the center of the oval base plate 1, wherein free areas 11 are disposed on both sides of the through hole 10 and have the same diameter, the temperature of the center part is high during heating, heat can be conducted through the free areas 11, so as to control the speed of heat conduction and heat dissipation, the free areas 11 radially extend from the edge of the through hole 10 to the oval base plate 1, each heating track layer 2 is disposed on the lower surface of the oval base plate 1 from the center of the oval base plate 1 to the edge in a concentric arc shape, a support member 4 is disposed on the upper surface of the oval base plate 1, the two side edges of the oval base plate 1 are provided with the lugs 5 which are centrosymmetric by the through holes 10, the sizes of the lugs 5 on the two sides are the same or different, the direction identification, the fixed installation and the clamping are convenient, and the lugs are not easy to move. Oval basal disc 1's lower surface outward flange still is provided with encapsulated layer 6, and encapsulated layer 6 generates heat layer 3 to the thick film and surrounds isolation heating, makes the heat concentrate on oval basal disc 1 within encapsulated layer 6, and this encapsulated layer 6 sets up between the outward flange on thick film heating layer 3 and oval basal disc 1's outward flange, heat trace layer 2 uses idle area 11 to set up the lower surface at oval basal disc 1 as axial symmetry, and the edge setting of oval basal disc 1 is followed and is close oval shape to the outermost track layer 2 that generates heat to generate heat layer 3 with the thick film and surround in outermost track layer 2 that generates heat.

As shown in fig. 1, 2 and 3, the thick film heating layer 3 includes a dielectric layer 30 printed on the lower surface of the oval substrate 1, and a resistive layer 31, a conductive layer 32 and a glass layer 33 printed on the surface of the dielectric layer 30, the dielectric layer 30 is made of ceramic insulating heat-conducting material or other insulating heat-conducting material, the glass layer 33 is a borosilicate glass film, an electrode layer 34 and a power identification layer 35 are arranged on the dielectric layer 30 on the surface in the idle region 11, the electrode layer 34 and the power identification layer 35 are respectively located on two sides of the through hole 10, the head and tail ends of the resistive layer 31 are respectively connected to the electrode layer 34, the electrode layer 34 in the idle region 11 is used as a bonding pad at the N and L ends of the mains supply access end, and a sufficient spacing distance (not less than 2mm) is reserved between the two electrode layers (contact points or bonding pads) to ensure that no short circuit occurs when, the danger of preventing electric arc is mutually generated, so that the safety is higher, and the uniformity and the stability of the detected temperature can be ensured; the power data on the power indicia zone 28 is such that each heater has a fixed indicia thereon, for example, the text identified by the power indicia layer 35 is: 120V/500W, rated current is 1A, and the power identification layer 35 can be more conveniently installed and safely used; the dielectric layer 30 is printed between the edge close to the through hole 10 and the edge close to the elliptical base plate 1, the resistance layers 31 are arranged in each heating track layer 2, the end parts of the adjacent resistance layers 31 are connected in series through the conductor layers 32, and the conductor layers 32 are in arc transition connection with the adjacent resistance layers 31, so that the structure is attractive; the conductor layer 32 is printed and coated with silver paste, so that the conductivity of the conductor layer 32 is improved, heat accumulation is reduced, the heat conductivity is improved, the conductor layer can be connected in series to form the required resistance according to requirements, and the resistance heating value of the required resistance layer 31 is selected. The spacing distance between the resistance layers 31 in each heating track layer 2 is not more than 0.8mm, the thickness of the dielectric layer 30 is not more than 100 μm, the thickness of the resistance layer 31 is not more than 20 μm, the thickness of the oval base disc 1 is 0.8 mm-2 mm, and the oval base disc 1 is a stainless steel substrate or a ceramic substrate.

When the heater of the utility model is applied to the electric milk stirring device, with the combination of the figure 1, the figure 2, the figure 3, the figure 4 and the figure 6, the electric milk whisk comprises a heater, a stirring cylinder 101, a base 102, a direct current motor 103 and a control panel 104, wherein the direct current motor 103 and the control panel are arranged on the base 102, the heater comprises an oval base plate 1, a plurality of heating track layers 2 arranged on the lower surface of the oval base plate 1, a thick film heating layer 3 covering the surfaces of the heating track layers 2 and serving as a heating element, and a through hole 10 arranged at the center of the oval base plate 1, wherein idle areas 11 with the same diameter are arranged on two sides of the through hole 10, the idle area 11 radially extends to the oval base plate 1 from the edge of the through hole 10, each heating track layer 2 is concentrically arranged on the lower surface of the oval base plate 1 from the center to the edge of the oval base plate 1 in an arc shape, and a support piece 4 is arranged on the upper surface of the oval base plate 1; the supporting member 4 protrudes upwards from the through hole 10, the lower end of the supporting member 4 is welded, sealed and fixed with the through hole 10, the upper surface of the oval base plate 1 is welded with the lower end of the stirring cylinder 101 to form a stirring cup body 100, the oval base plate 1 is used as a cup bottom, the supporting member 4 is positioned at the center of the stirring cup body 100, the outer wall of the supporting member 4 is sleeved with a stirring seat 105, the top end of the stirring seat 105 is provided with a stirring knife 105a, the inner wall of the stirring seat 105 is provided with a magnetic ring (not shown),

as a preferred embodiment of the present invention, referring to fig. 1, fig. 2, fig. 3, fig. 5 and fig. 6, the supporting member 4 is a cap-shaped body made of stainless steel material, the supporting member 4 protrudes upward from the edge of the through hole 10, the open end of the supporting member 4 is fixedly connected to the through hole 10 by welding, the output shaft of the dc motor 103 is inserted upward from the through hole 10 to the top end inside the cap cavity of the supporting member 4, so that the stirring cup 100 and the elliptical base plate 1 are supported on the base 102, the magnetic ring 103a is disposed at the end of the output shaft of the dc motor 103, two conductive sheets 106 are disposed outside the base 102, the conductive sheets 106 and the dc motor 103 are electrically connected to the control panel 104, respectively, when the whole stirring cup 100 is placed on the base 102, the two conductive sheets 106 are in contact with the two electrode layers 34, and the dc motor 103 rotates after being powered on, the magnetic ring 103a at the tail end of the output shaft of the direct current motor 103 is used as an N pole, the magnetic ring on the inner wall of the stirring seat 105 is used as an S pole, when the output shaft of the direct current motor 103 drives the magnetic ring 103a to rotate, under the action of magnetic force, the stirring seat 105 is driven to do circular motion on the outer wall of the support piece 4, the stirring knife 105a is driven to rotate to realize a smooth rotating and stirring function, at the moment, the thick film heating layer 3 is conductive and generates heat, the milk stirring device is heated and stirred, and therefore the direct contact between the output shaft of the direct current motor and a stirring material is avoided. The problem of traditional take the dish that generates heat of stirring sword be equipped with parts such as bearing housing and bearing retainer plate and lead to that the structure is complicated, the installation is inconvenient, manufacturing cost is high, be difficult to ensure the good work of stirring sword is effectively solved to the problem that the stirring sword is difficult to dismantle and wash has been solved.

As another embodiment of the present invention, in order to effectively reduce the stirring speed, the supporting member 4 is a solid cylinder made of stainless steel, the supporting member 4 protrudes upward from the inside of the through hole 10, the cross section of the lower end of the supporting member 4 is a concave curved surface 40 toward the protruding direction, the lower end of the supporting member 4 is fixed to the edge of the through hole 10 by welding, the supporting member 4 is fixed to the through hole 10 of the elliptical base plate 1 by laser welding, the surface of the laser welding is smooth, the output shaft of the dc motor 103 is inserted upward from the through hole 10 into the concave curved surface 40 of the supporting member 4, so that the stirring cup 100 and the elliptical base plate 1 are supported on the base 102, the magnetic ring 103a is disposed at the end of the output shaft of the dc motor 103, the magnetic ring 103a is inserted into the concave curved surface 40, two conductive pieces 106 are disposed outside the base 102, the conducting strips 106 and the direct current motor 103 are respectively electrically connected with the control panel 104, a single chip microcomputer controller is arranged on the control panel 104, the direct current motor and a working power supply are controlled to be switched on and off through the single chip microcomputer controller, when the whole stirring cup body 100 is placed on the base 102, the two conducting strips 106 are respectively in contact connection with the two electrode layers 34, the direct current motor 103 rotates after being electrified, the magnetic ring 103a at the tail end of the output shaft of the direct current motor 103 is used as an N pole, and the magnetic ring on the inner wall of the stirring seat 105 is used as an S pole, because the space distance between the magnetic ring 103a in the concave curved surface 40 and the magnetic ring on the inner wall of the stirring seat 105 is large, the space area induced by the magnetic force is small, the generated magnetic force is weak, when the output shaft of the direct current motor 103 drives the magnetic ring 103a to rotate, under the action of the magnetic, stirring seat 105 pivoted speed is slower to speed when driving stirring sword 105a and rotating and realizing smooth and easy rotatory stirring function is also slower, meanwhile, the thick film generates heat layer 3 will electrically conduct and generate heat, thereby heats and stirring control stirring the milk ware, thereby has avoided direct current motor's output shaft and stirring material direct contact like this, has also effectively reduced the speed of stirring, the utility model discloses a heater simple structure, simple to operate, low in manufacturing cost to it is difficult to dismantle and abluent problem to have solved the stirring sword.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. The utility model provides a heater of electronic stirring ware which characterized in that: the heater includes oval basal disc (1), sets up many track layers (2) that generate heat of oval basal disc (1) lower surface, cover and generate heat track layer (2) surface as heating element's thick film and generate heat layer (3) and establish through-hole (10) at oval basal disc (1) center, be provided with and in idle region (11) on same diameter in the both sides of through-hole (10), this idle region (11) are radially extended to oval basal disc (1) by through-hole (10) edge, every track layer (2) that generate heat is just to being concentric arc setting to the edge by the center of oval basal disc (1) on the lower surface of oval basal disc (1) the upper surface of oval basal disc (1) is provided with support piece (4).

2. The heater of the electric milk stirrer according to claim 1, wherein: the heat trace layer (2) is arranged on the lower surface of the oval base plate (1) in an axisymmetric manner by taking the idle area (11) as an idle area, and the outermost heat trace layer (2) is arranged along the edge of the oval base plate (1) and is close to an oval shape, so that the thick film heat layer (3) is surrounded in the outermost heat trace layer (2).

3. A heater of an electric milk whisk according to claim 1 or 2, wherein: thick film heating layer (3) have resistive layer (31), conductor layer (32), glass layer (33) including printing dielectric layer (30) of oval basal disc (1) lower surface and printing on the surface of dielectric layer (30) be provided with electrode layer (34) and power identification layer (35) on dielectric layer (30) of the surface in idle area (11), this electrode layer (34) and power identification layer (35) are located through-hole (10) both sides, the head and the tail both ends of resistive layer (31) are connected respectively electrode layer (34), dielectric layer (30) are printed and are being close to the edge of through-hole (10) with be close to between the edge of oval basal disc (1), set up in resistive layer (31) along every heating track layer (2), conductor layer (32) series connection is passed through to the tip of adjacent resistive layer (31).

4. A heater of an electric milk mixer according to claim 3, characterized in that: the spacing distance between the resistance layers (31) in each heating track layer (2) is not more than 0.8mm, the thickness of the dielectric layer 30 is not more than 100 μm, and the thickness of the resistance layer 31 is not more than 20 μm.

5. A heater of an electric milk whisk according to claim 1 or 2, wherein: the supporting piece (4) is a cap-shaped body made of stainless steel materials, the supporting piece (4) protrudes upwards from the edge of the through hole (10), and the opening end of the supporting piece (4) is fixed with the through hole (10) through welding.

6. A heater of an electric milk whisk according to claim 1 or 2, wherein: the supporting piece (4) is a solid cylinder made of stainless steel materials, the supporting piece (4) protrudes upwards from the inside of the through hole (10), the cross section of the lower end of the supporting piece (4) is a concave curved surface (40) towards the protruding direction, and the lower end of the supporting piece (4) is fixed with the edge of the through hole (10) through welding.

7. The heater of the electric milk stirrer according to claim 1, wherein: a group of lugs (5) which are symmetrical with each other by taking the through hole (10) as the center are arranged on the edges of the two sides of the oval base plate (1).

8. The heater of the electric milk stirrer according to claim 1, wherein: the outer edge of the lower surface of the oval base plate (1) is also provided with an encapsulating layer (6), and the encapsulating layer (6) is arranged between the outer edge of the thick film heating layer (3) and the outer edge of the oval base plate (1).

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