CN212005786U

CN212005786U - Electromagnetic oven

Info

Publication number: CN212005786U
Application number: CN202020321396.0U
Authority: CN
Inventors: 朱泽春; 陈国栋
Original assignee: Joyoung Co Ltd
Current assignee: Shandong Jiuchuang Home Appliance Co ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-11-24
Anticipated expiration: 2030-03-16

Abstract

The utility model relates to the field of cooking appliances, in particular to an induction cooker, which comprises a shell and a panel covered on the shell; a coil panel is arranged in the shell, and a through hole is formed in the middle of the panel; the middle part of the coil panel is provided with a panel frame hole corresponding to the through hole; the wall of the tray frame hole extends upwards to enable the upper part of the tray frame hole to be contained in the through hole; the upper part of the spring supporting seat supports the temperature sensing piece so that the temperature sensing piece penetrates through the disc frame hole and can stretch up and down relative to the through hole; the bottom of the spring supporting seat is fixed on the coil panel. Because the upper part of the disc frame hole is contained in the through hole, the temperature sensing piece passes through the disc frame hole and can stretch up and down relative to the through hole, the hole cavity of the disc frame hole is used for placing the temperature sensing piece on one hand, and the hole wall of the disc frame hole on the other hand also realizes the left and right displacement of the temperature sensing piece, other fixing pieces do not need to be arranged to fix the temperature sensing piece, the structure is simple, and the assembly is rapid.

Description

Electromagnetic oven

Technical Field

The utility model relates to a cooking utensil field, concretely relates to electromagnetism stove.

Background

The electromagnetism stove is the most common one among the kitchen cooking utensil, and the temperature-sensing element of present electromagnetism stove all sets up the lower part at the panel basically, in the actual work in-process, can lead to the temperature of temperature-sensing to differ greatly with the pan actual temperature because the thermal-insulated hysteresis that leads to the temperature sensing of panel etc. to effectual temperature sensing accuse temperature can not lead to often pasting the pot when using the electromagnetism stove to cook, causes user experience not good.

SUMMERY OF THE UTILITY MODEL

For solving the above problem that prior art exists, the utility model provides an induction cooker, the middle part of coil panel is equipped with the plate rail hole that corresponds with the through-hole on the panel, the pore wall in plate rail hole upwards extends to make the upper portion in plate rail hole contain in the through-hole, the temperature sensing piece passes plate rail hole and can stretch out and draw back from top to bottom for the through-hole, the direct contact temperature sensing of the pan on temperature sensing piece and the panel has been realized, and because the upper portion in plate rail hole contains in the through-hole, the temperature sensing piece passes plate rail hole again and can stretch out and draw back from top to bottom for the through-hole, make the vestibule in plate rail hole be used for placing the temperature sensing piece on the one hand, the displacement about the temperature sensing piece has also been realized fixing to the pore wall in other side plate rail hole, need not to.

The utility model adopts the technical proposal that:

an induction cooker comprises a shell and a panel covered on the shell; a coil panel is arranged in the shell, and a through hole is formed in the middle of the panel; the middle part of the coil panel is provided with a panel frame hole corresponding to the through hole; the device is characterized by also comprising a temperature sensor component; the temperature sensor assembly comprises a spring supporting seat and a temperature sensing piece, and a lead wire extending downwards is arranged at the bottom of the temperature sensing piece; the wall of the tray frame hole extends upwards to enable the upper part of the tray frame hole to be contained in the through hole; the upper part of the spring supporting seat supports the temperature sensing piece so that the temperature sensing piece penetrates through the disc frame hole and can stretch up and down relative to the through hole; the bottom of the spring supporting seat is fixed on the coil panel.

Preferably, the coil disc is further provided with an annular step concentric with the disc frame hole; the height of the annular step is lower than that of the disk frame hole.

Preferably, the annular step is provided with a glue groove.

Preferably, the lower part of the spring support seat is provided with a guide rib for guiding the lead.

Preferably, the spring supporting seat is provided with a water leakage hole.

Preferably, a sealing ring is arranged between the through hole and the disc frame hole.

Preferably, the dish rack hole and the temperature sensing piece are in clearance fit.

Preferably, the lower part of the spring supporting seat is provided with a fixing hole, and the coil panel is provided with a locking hole corresponding to the fixing hole.

Preferably, the temperature sensing element comprises a heat-conducting shell and a thermistor encapsulated in the heat-conducting shell, and the thermistor is encapsulated in the heat-conducting shell through ceramic glue.

Preferably, the spring supporting seat comprises a top seat, a base and a spring; a first spring clamping groove is formed in the top seat, a second spring clamping groove is formed in the base, and the spring clamp is arranged between the first spring clamping groove and the second spring clamping groove; the upper part of the top seat is clamped with the outer wall of the upper part of the temperature sensing piece; the lower part of the base is connected with the coil panel.

The utility model has the advantages as follows:

1. the middle part of coil panel is equipped with the plate rail hole that corresponds with the through-hole on the panel, the pore wall in plate rail hole upwards extends and makes the upper portion of plate rail hole contain in the through-hole, the temperature sensing piece passes plate rail hole and can stretch out and draw back from top to bottom for the through-hole, the direct contact temperature sensing of pan on temperature sensing piece and the panel has been realized, and because the upper portion in plate rail hole contains in the through-hole, the temperature sensing piece passes plate rail hole again and can stretch out and draw back from top to bottom for the through-hole, make the vestibule of plate rail hole give the accommodation space of temperature sensing piece on the one hand, the pore wall in plate rail hole has also realized the displacement about the fixed temperature sensing piece on the other hand, need not to establish other.

2. The coil disc is also provided with an annular step concentric with the disc frame hole; the height of the annular step is lower than that of the coil frame hole, so that the annular step protruding out of the coil surface of the coil disc can be tightly fixed on the lower surface of the panel, and the upper part of the coil frame hole is contained in the through hole; the coil panel is fixedly connected with the shell on the one hand, and on the other hand is attached to the lower surface of the panel tightly, so that the stability of the coil panel is guaranteed, the coil panel is prevented from sinking along with the prolonging of the service life, the performance of the induction cooker is reduced, and the problem that the temperature sensing piece cannot be effectively sensed due to the fact that the position of the temperature sensing piece is prevented from moving downwards is solved.

3. A glue groove is arranged on the annular step; the glue groove is arranged, glue can be placed in the glue groove, so that the annular step of the electromagnetic coil disc is guaranteed to be tightly adhered and fixed on the lower surface of the panel, and the coil disc is fixedly connected to the shell, so that the fixing stability of the coil disc is dually guaranteed, and the phenomenon that the performance of the electromagnetic oven is reduced due to the fact that the coil disc sinks is prevented; on the other hand, the temperature sensing element is ensured to be at a fixed height, and the problem that the temperature sensing element cannot effectively sense temperature in real time due to sinking along with the coil panel is prevented from occurring.

4. The lower part of the elastic supporting seat is provided with a guiding rib for guiding the lead. The guide ribs are used for guiding the direction of the lead, and the lead is guaranteed to be smooth and free of winding and blocking. The problem that the wire is blocked due to the fact that the wire is wound inside the shell or blocked by other assemblies is solved, and therefore the temperature sensing piece cannot smoothly stretch up and down in the through hole or even cannot stretch out and draw back is solved.

5. The lower part of the spring supporting seat is provided with a water leakage hole. Because the temperature sensing piece is for the scalable removal of through-hole, must have the space between through-hole and the temperature sensing piece, during profit on the panel can get into the casing through the through-hole, be equipped with the hole that leaks in the lower part of spring support seat, can guide the rivers of profit to the shell bottom or appointed region effectively, prevent to damage the inside components and parts of casing, guarantee the stability and the life-span of electromagnetism stove.

6. And a sealing ring is arranged between the through hole and the disk rack hole. The sealing ring seals the gap between the through hole on the panel and the tray frame hole, so that oil and water are prevented from entering.

7. The dish rack hole is in clearance fit with the temperature sensing piece. Clearance fit guarantees that the temperature sensing piece can smoothly carry out the removal of direction from top to bottom in the plate rail hole, and then realizes that the temperature sensing piece can stretch out and draw back from top to bottom for the through-hole, prevents to cause the direction to remove the difficulty from top to bottom because plate rail hole and temperature sensing piece cooperation are too tight.

8. The lower part of the spring supporting seat is provided with a fixing hole, and the coil panel is provided with a locking hole corresponding to the fixing hole. The lower part of the spring supporting seat is in threaded connection with the coil disc through screws, and the stability of fixing of the supporting seat is guaranteed.

9. The temperature sensing piece comprises a heat conduction shell and a thermistor packaged in the heat conduction shell, and the thermistor is packaged in the heat conduction shell through ceramic glue. The thermistor is packaged by ceramic glue, the ceramic has excellent heat conducting performance and insulating performance, and the long-term temperature resistance value of the ceramic is higher than 350 ℃, so that the temperature sensing accuracy of the temperature sensing piece is ensured, and the accurate and stable sensing of the temperature can be realized even when the temperature sensing piece is placed in a high-temperature environment with the temperature within 350 ℃. When the induction cooker is in a dry-burning state, the temperature of the induction cooker sometimes reaches 300 ℃ or even higher, and the temperature resistance value of the temperature sensing element which is commonly packaged is usually less than 300 ℃ and is in a failure state; this problem does not occur with ceramic packages.

The following are specifically mentioned: the long-term temperature resistance value referred to herein refers to the maximum service temperature at which the material retains its mechanical properties as a substrate after prolonged exposure to heat. Namely the maximum service temperature at which the physical properties, physical states and the like of the glass are not changed in a long-term heated state.

10. The spring supporting seat comprises a top seat, a base and a spring; a first spring clamping groove is formed in the top seat, a second spring clamping groove is formed in the base, and the spring clamp is arranged between the first spring clamping groove and the second spring clamping groove; the upper part of the top seat is clamped with the outer wall of the upper part of the temperature sensing piece; the lower part of the base is connected with the coil panel. The spring supporting top seat and the temperature sensing piece can be realized by arranging the spring clamping groove I on the top seat, arranging the spring clamping groove II on the base, clamping the spring between the top seat and the base through the spring, and clamping the temperature sensing piece on the upper part of the top seat; when the force applied to the temperature sensing piece is removed, if the cooker is removed, the spring restores the original shape, and the corresponding temperature sensing piece moves upwards, so that the temperature sensing piece stretches relative to the through hole.

Drawings

Fig. 1 is a schematic sectional view of the electromagnetic oven of the present invention.

Fig. 2 is a schematic structural diagram of the connection of the panel, the temperature sensor assembly and the coil panel of the present invention.

Fig. 3 is a schematic diagram of the explosion structure of the panel, the temperature sensing element, the sealing ring and the coil panel of the present invention.

Fig. 4 is a schematic diagram of the front structure of the coil panel of the present invention.

Fig. 5 is a schematic diagram of a back structure of the coil panel of the present invention.

Fig. 6 is a schematic structural diagram of the base of the present invention.

Fig. 7 is a schematic structural view of the upper portion of the base of the present invention.

In the figure: 100-shell, 200-panel, 300-coil panel, 400-temperature sensor component, 210-through hole, 220-sealing ring, 310-coil frame hole, 320-annular step, 330-locking hole, 410-spring supporting seat, 420-temperature sensing piece, 430-lead, 321-glue groove, 411-top seat, 412-spring, 413-base, 414-guiding rib, 415-water leakage hole, 416-fixing hole, 421-heat conducting shell, 422-thermistor, 4111-spring clamping groove I, 4131-spring clamping groove II.

Detailed Description

The present invention will be further described with reference to the following specific embodiments, but the present invention is not limited to these specific embodiments. It will be recognized by those skilled in the art that the present invention encompasses all alternatives, modifications, and equivalents as may be included within the scope of the claims.

Example one

The induction cooker shown in fig. 1-7 comprises a housing 100 and a panel 200 covering the housing 100; the coil panel 300 is arranged in the casing 100, and the middle part of the panel 200 is provided with a through hole 210; a tray hole 310 corresponding to the through hole 210 is formed in the middle of the coil tray 300; also included is a temperature sensor assembly 400; the temperature sensor assembly 400 includes a spring support 410 and a temperature sensing element 420, wherein the bottom of the temperature sensing element 420 has a wire 430 extending downward; the wall of the tray hole 310 extends upward such that the upper portion of the tray hole 310 is accommodated in the through hole 210; the upper part of the spring support seat 410 supports the temperature sensing element 420 so that the temperature sensing element 420 passes through the bobbin bracket hole 310 and can extend and retract up and down relative to the through hole 210; the bottom of the spring support 410 is fixed to the coil disk 300. Because the upper part of the disk frame hole 310 is contained in the through hole 210, the temperature sensing piece 420 passes through the disk frame hole 310 and can stretch up and down relative to the through hole 210, on one hand, the hole cavity of the disk frame hole 310 provides a space for accommodating the temperature sensing piece 420, on the other hand, the hole wall of the disk frame hole 310 also realizes the effect of fixing the left and right displacement of the temperature sensing piece 420, and further, other fixing pieces do not need to be arranged to fix the temperature sensing piece, the structure is simple, and the assembly is rapid.

The coil disc 300 is further provided with an annular step 320 concentric with the disc holder hole 310; the height of the annular step 320 is lower than the height of the disc holder hole 310; the annular step 320 is provided with a glue groove 321. So that the annular step 320 protruding the disc surface of the coil disc 300 can be closely fixed to the lower surface of the faceplate 200 while the upper portion of the bobbin hole 310 is accommodated in the through hole 210; the coil panel 300 is fixedly connected to the housing 100, and is tightly attached to the lower surface of the panel 200, so that the stability of the coil panel 300 is ensured, the problem of performance degradation of the induction cooker caused by the sinking of the coil panel 300 along with the prolonging of the service life is prevented, and the problem of ineffective temperature sensing caused by the downward movement of the temperature sensing element 420 caused by the sinking of the coil panel 300 is prevented. By placing the glue in the glue groove 321, the annular step 320 of the coil panel 300 is ensured to be tightly adhered and fixed on the lower surface of the panel 200, and the coil panel 300 is also fixedly connected on the casing 100, so that the stability of fixing the coil panel is doubly ensured.

The lower part of the spring support seat 410 is provided with a guide rib 414 for guiding the lead 430; in this embodiment, the guiding rib 414 is an arc rib, and is mainly used to guide the wire 430 from one side of the arc rib to be placed on the other side of the arc rib, and guide the direction of the wire 430, so as to ensure that the wire 430 is smooth and free from winding and seizing. The wire 430 is prevented from being wound or blocked by other components inside the casing 100, so that the wire is prevented from being blocked, and the wire 430 is connected to the temperature sensing element 420, so that the temperature sensing element 420 cannot smoothly extend up and down in the through hole 210, even cannot extend and retract, and the bottom surface of the cookware on the panel cannot be attached tightly, so that the temperature sensing cannot be carried out effectively and accurately.

The spring support seat 410 is provided with a water leakage hole 415. Because temperature sensing piece 420 can stretch out and draw back the removal from top to bottom for through-hole 210, must have the space between through-hole 210 and the temperature sensing piece 420, during oil water on the panel 200 can get into casing 100 through-hole 210, is equipped with water leakage hole 415 in the lower part of spring supporting seat 410, can guide oil water to flow to casing 100 bottom or appointed region through water leakage hole 415 effectively, prevents to damage the inside components and parts of casing, guarantees the stability and the life-span of electromagnetism stove.

A sealing ring 220 is provided between the through hole 210 and the tray hole 310. The packing 220 seals a gap between the through hole 210 of the panel 200 and the tray hole 310, preventing oil and water from entering through the gap. The dish rack hole 310 is in clearance fit with the temperature sensing piece 420; the temperature sensing member 420 can be smoothly moved up and down in the tray frame hole 310, so that the temperature sensing member 420 can be extended and retracted up and down relative to the through hole 210, and difficulty in moving up and down due to over-tight fit between the tray frame hole and the temperature sensing member is prevented.

The lower portion of the spring support 410 is provided with a fixing hole 413, and the coil panel 300 is provided with a locking hole 330 corresponding to the fixing hole 413. The lower portion of the spring support 410 can be screwed on the coil plate by screws passing through the fixing holes 413 and the locking holes 330, so as to ensure the stability of the connection and fixation of the spring support 410.

In this embodiment, in order to ensure that the temperature sensor assembly 400 is safely and effectively fixed in the casing 100 and can extend and retract up and down relative to the through hole 210, the spring support seat 410 includes a top seat 411, a base 413 and a spring 412; a first spring clamping groove 4111 is formed in the top seat 411, a second spring clamping groove 4131 is formed in the base 413, and the spring 412 is clamped between the first spring clamping groove 4111 and the second spring clamping groove 4131; the upper part of the top seat 411 is clamped with the outer wall of the upper part of the temperature sensing element 420; the lower portion of the base 413 is connected to the coil disk 300. The first spring clamping groove 4111 is formed in the top seat 411, the second spring clamping groove 4131 is formed in the base 413, the spring 412 is clamped between the top seat 411 and the base 413, and the temperature sensing piece 420 is clamped on the upper portion of the top seat 411, so that the spring 412 can support the top seat 411 and the temperature sensing piece 420, when downward force is applied to the temperature sensing piece 420, for example, when a pot is placed, the spring 412 is compressed, the temperature sensing piece 420 moves downward, and the upper surface of the temperature sensing piece 420 can be tightly attached to the lower surface of the pot to sense temperature; when the force applied to the temperature sensing element is released, such as when the pot is removed, the spring 412 is restored to its original shape, and the corresponding temperature sensing element 420 moves upward, thereby extending and retracting the temperature sensing element relative to the through hole.

Example two:

as shown in fig. 1-7, in the present embodiment, the temperature sensing element 420 includes a heat conductive casing 421 and a thermistor 422 encapsulated in the heat conductive casing 421, and the thermistor 422 is encapsulated in the heat conductive casing 421 through ceramic glue. The thermistor 422 is packaged by ceramic glue, the ceramic has excellent heat conducting property and insulating property, and the temperature resistance of the ceramic is still higher than 350 ℃ after long-term use, so that the accuracy of temperature sensing of the temperature sensing piece 420 is ensured, and accurate and stable sensing of the temperature can be realized even in a high-temperature state of about 350 ℃. When the induction cooker is in a dry-burning state, the temperature of the induction cooker sometimes reaches 300 ℃ or even higher, and the temperature resistance value of the temperature sensing element which is commonly packaged is usually less than 300 ℃ and is in a failure state; this problem does not occur with ceramic packages.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing has been a detailed description of the preferred embodiments and principles of the present invention, and it will be apparent to those skilled in the art that variations may be made in the specific embodiments based on the concepts of the present invention, and such variations are considered as within the scope of the present invention.

Claims

1. An induction cooker comprises a shell and a panel covered on the shell; a coil panel is arranged in the shell, and a through hole is formed in the middle of the panel; the middle part of the coil panel is provided with a panel frame hole corresponding to the through hole; the device is characterized by also comprising a temperature sensor component; the temperature sensor assembly comprises a spring supporting seat and a temperature sensing piece, and a lead wire extending downwards is arranged at the bottom of the temperature sensing piece; the wall of the tray frame hole extends upwards to enable the upper part of the tray frame hole to be contained in the through hole; the upper part of the spring supporting seat supports the temperature sensing piece so that the temperature sensing piece penetrates through the disc frame hole and can stretch up and down relative to the through hole; the bottom of the spring supporting seat is fixed on the coil panel.

2. The induction cooker according to claim 1, wherein the coil disk is further provided with an annular step concentric with the disk rack hole; the height of the annular step is lower than that of the disk frame hole.

3. The induction cooker according to claim 2, wherein said annular step is provided with a glue groove.

4. The induction cooker according to claim 1, wherein a lower portion of said spring support base is provided with a guide rib for guiding said wire.

5. The induction cooker according to claim 1, wherein said spring support base is provided with water leakage holes.

6. The induction cooker according to claim 1, wherein a seal ring is provided between said through hole and said dish frame hole.

7. The induction cooker of claim 1, wherein said grill opening is a clearance fit with said temperature sensing element.

8. The induction cooker according to claim 1, wherein a fixing hole is formed at a lower portion of said spring support base, and a locking hole corresponding to said fixing hole is formed at said coil disk.

9. The induction cooker according to claim 1, wherein said temperature sensing element comprises a heat conducting casing and a thermistor encapsulated in said heat conducting casing, said thermistor being encapsulated in said heat conducting casing by ceramic glue.

10. The induction cooker of claim 1, wherein said spring support comprises a top, a bottom and a spring; a first spring clamping groove is formed in the top seat, a second spring clamping groove is formed in the base, and the spring clamp is arranged between the first spring clamping groove and the second spring clamping groove; the upper part of the top seat is clamped with the outer wall of the upper part of the temperature sensing piece; the lower part of the base is connected with the coil panel.