Temperature measuring unit of frying pan of automatic cooker and driving device with temperature measuring unit

Abstract

The utility model discloses a temperature measuring unit of a frying pan of an automatic cooker and a driving device with the temperature measuring unit, and the temperature measuring unit comprises a temperature sensor which is tightly contacted with the outer wall of the frying pan and synchronously rotates with the frying pan, and a conductive slip ring which is used for exporting a signal collected by the temperature sensor, the conductive slip ring is installed in a hollow channel of a hollow pan shaft fixedly connected with a frying pan, the driving device comprises the pan shaft, a pan shaft motor, a shifting fork shaft and a shifting fork motor, and the temperature measuring assembly used for detecting the temperature of the frying pan is the temperature measuring unit. According to the utility model, the conductive slip ring is mounted through the hollow channel in the hollow pan shaft mounted below the frying pan, so that the structure is compact, the space utilization rate is high, the vertical height of the whole furnace core device in the cooking machine including the frying pan is effectively reduced, and the cooking machine is more miniaturized.

Description

Technical Field

[0001] The utility model relates to a frying pan of an intelligent cooking machine, in particular to a temperature measuring unit of the frying pan and a driving device using the temperature measuring unit. Background Art

[0002] The wok device of the current cooking machine is equipped with a temperature measuring device for detecting the temperature of the wok. The temperature measuring device usually includes a temperature sensor and a conductive slip ring. The temperature sensor is installed on the outer wall of the wok and is attached to the outer wall. A wok shaft is provided at the bottom of the wok. The driving motor drives the wok shaft to rotate so that the wok and the temperature sensor rotate synchronously. The signal line of the temperature sensor is led out through the conductive slip ring. The existing installation method of the conductive slip ring has the following disadvantages:

[0003] The conductive slip ring is installed below the wok shaft, which causes the overall height of the wok device to increase because it occupies a part of the vertical space. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a temperature measuring unit of a frying pan of a cooking machine which has a compact structure and can effectively reduce the overall height of the frying pan device, and a driving device with the unit.

[0005] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0006] Provided is a temperature measuring unit for a wok in an intelligent cooking machine, comprising a temperature sensor which is in close contact with the outer wall of the wok and rotates synchronously with the wok, and a conductive slip ring which derives a signal collected by the temperature sensor, wherein the conductive slip ring is installed in a hollow channel of a hollow wok shaft which is fixed to the wok.

[0007] Preferably, the rotor of the conductive slip ring is fixedly connected to the inner wall of the hollow channel, the signal line of the temperature sensor is electrically connected to the rotor, the lower end of the stator of the conductive slip ring protrudes downward to the lower end of the rotor and is fixed to the outer cover of the driving assembly of the frying pan through a snap connection structure, a pin connection structure, a male and female buckle connection structure or an adhesive connection structure, and the stator is electrically connected to the main control circuit of the cooking machine through a wire.

[0008] Preferably, the outer diameter of the conductive slip ring is 28 mm and the height is 35 mm.

[0009] The utility model also provides a driving device for a frying pan used in an intelligent cooking machine, comprising a pan shaft, a pan shaft motor, a fork shaft and a fork motor, and the temperature measuring component for detecting the temperature of the frying pan is the temperature measuring unit.

[0010] Preferably, a worm gear is sleeved on the outer wall of the pot shaft, and the worm gear is dynamically connected to the output end of the pot shaft motor through a worm.

[0011] Preferably, the pot shaft is a hollow shaft with a hollow channel, the fork shaft is placed in the hollow channel, the upper end of the fork shaft is connected to the fork in the frying pan, the lower end of the fork shaft is poweredly connected to the output end of the fork motor arranged below the pot shaft, an axial channel is provided in the stator of the conductive slip ring in the temperature measuring unit, and the stator is sleeved on the outer wall of the fork shaft with a gap therebetween.

[0012] The utility model utilizes the hollow channel in the hollow pot shaft installed below the frying pan to install the conductive slip ring, so that the structure is compact and the space utilization rate is high, and the vertical height of the entire furnace core device in the frying machine including the frying pan is effectively reduced, so that the frying machine is more miniaturized. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a three-dimensional view of a furnace core device of an intelligent cooking machine.

[0014] Figure 2 The utility model provides Figure 1 sectional view of .

[0015] Figure 3 The utility model provides Figure 1 's disassembled view.

[0016] Figure 4 The utility model provides Figure 3 Disassembled view at A in the middle.

[0017] In the figure: a frying pan 1; a rotary cover 11; a pan shaft motor 12; a fork shaft 13; a fork motor 14; a worm gear 15; a worm 16; a fork 17; a temperature sensor 2; an arc-shaped spring piece 21; a conductive slip ring 3; a rotor 31; a stator 32; a base 4; a hollow pan shaft 5; a first bearing 51; a second bearing 52; an outer cover 6; a top cover 61; an adapter plate 7; an outer shell 8; an inner shell 9; and a protective shell 91. DETAILED DESCRIPTION

[0018] 1. Temperature measurement unit

[0019] like Figures 1 to 4 As shown, the temperature measuring unit of the utility model is applied to the wok 1 of the intelligent cooking machine, and its function is to collect the temperature of the outer wall of the wok 1 by closely contacting the temperature measuring probe of the temperature sensor 2 therein with the outer wall of the wok 1, and transmit the collected temperature signal to the main control circuit of the cooking machine through the conductive slip ring 3.

[0020] The temperature measuring unit includes the temperature sensor 2 and a conductive slip ring 3 .

[0021] 1. Temperature sensor 2

[0022] The temperature sensor 2 includes the temperature measuring probe and a signal line electrically connected to the temperature measuring probe.

[0023] The temperature probe is fixedly connected to the upper end of the inner side of the arc-shaped spring piece 21, and the arc-shaped spring piece 21 is detachably mounted on a base 4 located below the wok 1 and coaxially arranged with the wok 1. The base 4 is divided into a cylindrical base and a positioning column arranged in the center of the base 4 and extending upward. The lower end of the arc-shaped spring piece 21 is installed in a recessed position on the base; an external thread is provided on the outer wall of the positioning column, and the positioning column passes upward through an axial through hole arranged at the bottom of the wok 1, and the periphery of the axial through hole overlaps the top surface of the base, and then the base 4 is detachably mounted by screwing a screw cap 11 with an internal thread on the positioning column. When the wok 1 is mounted on the base 4, the outer wall of the wok 1 contacts and presses the temperature probe, and the rebound force generated by the arc elasticity makes the outer wall of the wok 1 and the temperature probe fit tightly. Correspondingly, an axial channel is provided in the base 4 , and a through hole communicating with the channel is provided on the recessed position. The signal line enters the channel through the through hole downward along the inner side surface of the arc-shaped spring piece 21 and is electrically connected to the rotor 31 of the conductive slip ring 3 .

[0024] There are multiple temperature sensors 2 and they are evenly distributed in the circumferential direction of the base. The utility model preferably has two temperature sensors 2 .

[0025] The temperature sensor 2 is preferably a platinum resistance temperature sensor.

[0026] The driving assembly of the cooking machine is connected to the base 4 to drive the base 4 to carry the wok 1 to rotate around the axis of the wok 1, so that the temperature sensor 2 and the wok 1 rotate synchronously. The specific connection method of the driving assembly and the base 4 is as follows:

[0027] The driving assembly includes a hollow pot shaft 5 and a power member, both of which are accommodated in the cavity of an outer cover 6. The top of the outer cover 6 is open, and its cavity is divided into a left cavity and a right cavity which are interconnected and arranged side by side.

[0028] The inner contour of the left cavity is roughly cylindrical, the hollow pot shaft 5 is a round shaft and is coaxially arranged with the frying pan 1 and has an axial hollow passage. Preferably, the lower outer wall of the hollow pot shaft 5 is provided with a step for easy connection with the power member, the middle and lower part of the hollow pot shaft 5 is accommodated in the left cavity, and the first bearing 51 is sleeved on the outer wall below the step. The outer ring of the first bearing 51 is fixedly connected to the inner wall of the left cavity, and a gap is left between the lower end face of the hollow pot shaft 5 and the bottom of the left cavity to allow the hollow pot shaft 5 to rotate freely; the right cavity is used to install the power member, and the power member is dynamically connected to the outer wall located on the step, and the upper end of the hollow pot shaft 5 is inserted upward into the annular groove in the middle area of ​​the bottom of the base, and fixedly connected therebetween. Thus, the driving assembly is dynamically connected to the base 4.

[0029] In order to seal the opening of the outer cover 6, a top cover 61 is provided on the outer cover 6. The top cover 61 is divided into an integrally formed cover plate and a columnar shroud. The shape of the cover plate is adapted to the shape of the opening of the outer cover 6. The shroud is provided on the top surface of the cover plate. Windows coaxial with the hollow pot shaft 5 are provided through the cover plate and the shroud. The hollow pot shaft 5 is passed through the window. The cover plate is sealingly connected to the top end surface of the outer cover 6 to seal the opening of the outer cover 6. At the same time, the shroud seals and encloses the hollow pot shaft 5 exposed on the outer cover 6 therein. The hollow pot shaft 5 and the top cover 61 are connected via a second bearing 52. At this time, the top surface of the shroud is opposite to the bottom surface of the base and a gap is left between the two to allow the base to rotate freely. A sealing ring is also provided between the window and the hollow pot shaft 5 to prevent water from entering the outer cover 6 through the gap between the window and the hollow pot shaft 5.

[0030] The top edge of the outer cover 6 is provided with a plurality of mounting holes. Correspondingly, an adapter plate 7 is provided on the outer wall of the surrounding tube. The middle area of ​​the bottom surface of the adapter plate 7 is provided with a plurality of mounting posts. The outer cover 6 and the adapter plate 7 are fixed together by locking the mounting posts with the corresponding mounting holes. The outer area of ​​the bottom surface of the adapter plate 7 is fixedly connected to the bottom of the outer shell 8 which is enclosed outside the wok 1 and coaxially arranged with the wok 1. The bottom of the outer shell 8 is provided with a through opening in which the outer cover 6 can be accommodated. In addition, an inner shell 9 is installed on the adapter plate 7 and enclosed outside the wok 1. The inner shell 9 is coaxial with the wok 1 and is used to install a magnetic heating coil (not shown in the figure) for heating the wok 1. The bottom of the inner shell 9 is provided with an axial hole. The periphery of the axial hole is fixedly connected with the adapter plate 7. The hole wall of the axial hole is directly opposite to the surrounding tube with a gap therebetween. The top edges of the inner shell 9 and the outer shell 8 are sealed and fixedly connected.

[0031] Thus, the outer cover 6 supports the components including the frying pan 1, the temperature measuring unit, the base 4 and the driving assembly, and transfers the load of the above components to the outer shell 8 through the adapter plate 7, and then the outer shell 8 transfers the load to the frame of the cooking machine.

[0032] The shell 8 is mounted on the frame by a left support shaft and a right support shaft symmetrically arranged on the outer wall of the shell 8, so that the stove core device of the cooking machine including the wok 1, the temperature measuring unit, the base 4, the driving assembly, the inner shell 9 and the outer shell 8 is installed as a whole in the cooking cavity of the cooking machine, and a machine door is hinged on the frame, and the machine door can close the front opening of the cooking cavity to form a closed space for the cooking cavity to form a closed space, in which the wok 1 is used for cooking.

[0033] 2. Conductive slip ring 3

[0034] The utility model is characterized in that the conductive slip ring 3 is installed in the hollow channel and is coaxially arranged with the hollow pot shaft 5, thereby making the layout compact and effectively reducing the vertical height occupied by the furnace core device in the inner cavity of the cooking machine without affecting the transmission function of the hollow pot shaft 5, making the cooking machine more miniaturized.

[0035] The conductive slip ring 3 comprises a stator 32 and a rotor 31 . The outer diameter of the conductive slip ring 3 (ie the outer diameter of the rotor 31 ) used in the present invention is preferably 28 mm, and the height is preferably 35 mm.

[0036] The upper end of the rotor 31 is fixedly connected to the bottom of the base; to facilitate the installation of the stator 32, the lower end of the stator 32 protrudes downward to the bottom of the rotor 31. Specifically, the lower end of the stator 32 is provided with a ring edge extending radially outward, and the ring edge is connected to a column barrel integrally formed with it and penetrating up and down, the ring edge is connected to the upper inner circumferential wall of the column barrel, and the lower end of the column barrel is connected to the outer cover 6 through a snap connection structure, a bayonet connection structure, a male and female buckle connection structure or an adhesive connection structure. The utility model preferably adopts a snap connection structure composed of a card block and a bayonet: the card block is multiple, which is a square card block arranged on the lower end surface of the column barrel, the number of the card blocks is preferably two and symmetrically arranged, the number of the bayonet is the same as the number of the card block, the card block is arranged on the hole wall of the central hole at the bottom of the outer cover 6, the central hole is coaxial with the hollow pot shaft 5, and the card block can be adapted downward and inserted in the corresponding bayonet.

[0037] The signal line of the temperature sensor 2 is electrically connected to the rotor 31 , and the stator 32 is electrically connected to the main control circuit via a wire, thereby realizing a signal connection between the temperature sensor 2 and the main control circuit.

[0038] 2. Driving device of frying pan 1

[0039] like Figures 1 to 4 As shown, the driving device is used to drive the wok 1 in the cooking machine to rotate, and a temperature measuring component is provided on the outer wall of the wok 1, and the temperature measuring component is used to detect the temperature of the outer wall of the wok 1. The temperature measuring component adopts the temperature measuring unit in the above-mentioned "1. Temperature measuring unit", and the driving device adopts the driving component of the above-mentioned "1. Temperature measuring unit". The wok 1, the temperature measuring component and the driving device are all components of the wok 1 device of the cooking machine, and the wok 1 device adopts the furnace core device in the above-mentioned "1. Temperature measuring unit".

[0040] The driving device further comprises a pot shaft, a pot shaft motor 12, a fork shaft 13 and a fork motor 14. The pot shaft is the hollow pot shaft 5 mentioned above, that is, the pot shaft is a hollow shaft and has the hollow channel.

[0041] 1. Pot shaft and pot shaft motor 12

[0042] The driving device also includes a worm gear transmission mechanism, which is the above-mentioned power member. The worm gear transmission mechanism used in the utility model has the advantages of stable transmission and long service life compared with the gear rack transmission mechanism used in the prior art.

[0043] The worm wheel 15 in the worm gear transmission mechanism is placed in the left cavity of the outer cover 6 and is sleeved on the outer wall of the pot shaft. Preferably, the worm wheel 15 and the pot shaft are integrally formed, and the worm 16 in the worm gear transmission mechanism is installed in the right cavity of the outer cover 6. A through hole is opened on one side wall of the right cavity. The pot shaft motor 12 is fixedly connected to the side wall and its output end passes through the through hole to be dynamically connected to the worm 16.

[0044] 2. Shift fork shaft 13 and shift fork motor 14

[0045] The fork shaft is connected to the fork set in the wok 1, and the fork motor 14 drives the fork shaft 13 to rotate to make the fork 17 rotate in the wok 1, so as to flip and stir the ingredients in the wok, so that the ingredients are heated evenly. The fork motor 14 preferably drives the fork 17 to rotate relative to the wok 1 in the same speed and opposite direction, the same direction but different speeds, or opposite directions but different speeds, so as to improve the stir-frying effect and make the ingredients heated more evenly.

[0046] In order to install the fork shaft 13 in the hollow channel of the pot shaft, an axial channel is provided in the stator 32 of the conductive slip ring 3, the upper end of the fork shaft 13 passes through the rotary cover 11 upwards and is connected with the fork 17 in a quick disassembly manner, the lower end of the fork shaft 13 passes through the hole of the base 4 downwards and is placed in the axial channel, and the fork shaft 13 and the inner wall of the hole and the axial channel are spaced from each other. The fork motor is fixed to the bottom of the outer cover 6, and the output shaft of the fork motor 14 passes through the central hole on the outer cover 6 and is connected with the lower end of the fork shaft 13.

[0047] A protective shell 91 for sealing the opening of the housing 8 is fixedly connected to the bottom of the housing 8 , and the bottom of the fork motor 14 is in contact with the inner surface of the bottom of the protective shell 91 .

Claims

1. A temperature measuring unit for a wok in an intelligent cooking machine, comprising a temperature sensor that is in close contact with the outer wall of the wok and rotates synchronously with the wok, and a conductive slip ring that derives a signal collected by the temperature sensor, characterized in that: The conductive slip ring is installed in the hollow channel of the hollow pot shaft fixedly connected to the frying pan.

2. The temperature measuring unit of the wok in the intelligent cooking machine according to claim 1, characterized in that: The rotor of the conductive slip ring is fixedly connected to the inner wall of the hollow channel, the signal line of the temperature sensor is electrically connected to the rotor, the lower end of the stator of the conductive slip ring protrudes downward to the lower end of the rotor and is fixed to the outer cover of the driving assembly of the frying pan through a snap connection structure, a pin connection structure, a male and female buckle connection structure or an adhesive connection structure, and the stator is electrically connected to the main control circuit of the cooking machine through a wire.

3. The temperature measuring unit of the wok in the intelligent cooking machine according to claim 2, characterized in that: The outer diameter of the conductive slip ring is 28 mm and the height is 35 mm.

4. A driving device for a frying pan used in an intelligent cooking machine, comprising a pan shaft, a pan shaft motor, a fork shaft and a fork motor, characterized in that: The temperature measuring component for detecting the temperature of the wok is the temperature measuring unit described in any one of claims 1 to 3.

5. The driving device of the frying pan used in the intelligent cooking machine according to claim 4, characterized in that: A worm wheel is sleeved on the outer wall of the pot shaft, and the worm wheel is connected to the output end of the pot shaft motor through a worm.

6. The driving device of the wok used in the intelligent cooking machine according to claim 5, characterized in that: The pot shaft is a hollow shaft with a hollow channel, the fork shaft is placed in the hollow channel, the upper end of the fork shaft is connected to the fork in the frying pan, and the lower end of the fork shaft is connected to the output end of the fork motor arranged below the pot shaft. An axial channel is provided in the stator of the conductive slip ring in the temperature measuring unit, and the stator is sleeved on the outer wall of the fork shaft with a gap left therebetween.

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