A temperature measuring device and burner capable of automatically switching temperature control

Abstract

The present invention discloses a temperature measuring device and a burner capable of automatically switching temperature control. The temperature control system comprises: a probe bracket, the probe bracket having a mounting hole; a temperature probe, the temperature probe being inserted through the mounting hole and capable of switching between a temperature monitoring state and a temperature monitoring failure state; a sensing component, the sensing component being disposed below or above the probe bracket, and when the temperature probe moves downward and contacts the sensing component, the temperature probe is switched to a temperature monitoring failure state, or when the temperature probe moves downward and does not contact the sensing component, the temperature probe is switched to a temperature monitoring state. The temperature measuring device of the present invention has a simple structure and can realize automatic switching of temperature control states, thereby solving the problem of automatic flameout of an anti-dry-burning gas stove due to misoperation when a user uses a pointed pot, and improving the user experience.

Description

Technical Field

[0001] The invention relates to the technical field of burners, and in particular to a temperature measuring device capable of automatically switching temperature control and a burner. Background Art

[0002] At present, most of the anti-dry-burning gas stoves on the market have through holes in the middle of the burner heads, and the temperature sensor is fixed on the burner head through the through holes to avoid dry-burning. When a flat pan is placed on the stove, the temperature sensor's temperature sensing cap has a large contact area with the bottom of the pot, and the temperature detection accuracy of the bottom of the pot is high. However, when a pointed pot is placed on the stove, since the bottom of the pot is arc-shaped, the temperature sensor's temperature sensing cap has a small contact area with the bottom of the pot, and the temperature detection error of the bottom of the pot is large. During the cooking process, the dry-burning gas stove may malfunction and automatically shut down due to abnormal bottom temperature detection, affecting the user experience.

[0003] In addition, the anti-dry-burn gas stove is designed with a fixed structure retaining ring in the center inner fire cover. Since the height of the retaining ring cannot be automatically adjusted, the use conditions of the gas stove's anti-dry-burn burner are limited. For example: when using a pointed pot, the bottom of the pot will hit the heat retaining ring of the center inner fire cover, causing the pointed pot to be unstable or unable to be placed. Summary of the invention

[0004] The present invention aims to solve at least one of the problems existing in the existing related technologies to a certain extent. To this end, the present invention proposes a temperature measuring device that can automatically switch temperature control. The device has a simple structure and can automatically switch the temperature control state, thereby solving the problem of the anti-dry burning gas stove malfunctioning and automatically shutting down when the user uses a pointed pot, thereby improving the user experience.

[0005] The invention also provides a burner with the temperature measuring device.

[0006] According to the above-mentioned temperature measuring device capable of automatically switching temperature control, it is realized through the following technical solutions:

[0007] A temperature measuring device capable of automatically switching temperature control comprises: a probe bracket, the probe bracket having a mounting hole; a temperature probe, the temperature probe being inserted through the mounting hole and capable of switching between a temperature monitoring state and a temperature monitoring failure state; a sensing component, the sensing component being arranged below or above the probe bracket, and when the temperature probe moves downward and contacts the sensing component, the temperature probe is switched to a temperature monitoring failure state, or when the temperature probe moves downward and does not contact the sensing component, the temperature probe is switched to a temperature monitoring state.

[0008] In some embodiments, the temperature probe includes a temperature sensing cap, a support rod, an outer sleeve and an inner sleeve, the support rod is inserted into the mounting hole and is fastened to the probe bracket, the outer sleeve can be movably sleeved on the upper end outer surface of the support rod, the temperature sensing cap is provided on the top of the outer sleeve, the inner sleeve is respectively arranged in the support rod and the outer sleeve, and the upper end of the inner sleeve is connected to the outer sleeve, and the lower end extends to the bottom of the probe bracket; the sensing component is arranged below the probe bracket, and the inner sleeve selectively contacts the sensing component when it moves downward, or the sensing component is arranged between the probe bracket and the outer sleeve, and the outer sleeve selectively contacts the sensing component when it moves downward.

[0009] In some embodiments, the sensing component includes a sensor and a support frame having a mounting cavity, the support frame is sleeved on the outer surface of the lower end of the inner sleeve and is located below the probe holder, the sensor is arranged in the mounting cavity and is located below the inner sleeve, and a distance H is left between the sensor and the bottom of the inner sleeve.

[0010] In some embodiments, the sensing component further includes an elastic member, a limiting portion located below the sensor is provided in the installation cavity, and the elastic member is disposed in the installation cavity and clamped between the sensor and the limiting portion.

[0011] In some embodiments, the sensing component includes a sensor and a support base, wherein the support base is disposed outside the support rod and between the jacket and the probe bracket, and the sensor is disposed on the support base and below the jacket, with a spacing H being left between the sensor and the bottom of the jacket.

[0012] In some embodiments, the support seat has a center hole, the support seat is sleeved on the outer surface of the support rod and connected to the probe bracket or the furnace head, and the sensor is installed on the top of the support seat or in the center hole.

[0013] In some embodiments, the sensing component further includes an elastic member sleeved on the outer surface of the support rod, the elastic member is clamped between the sensor and the top of the probe holder, or the support seat is provided with a positioning portion located below the sensor, and the elastic member is clamped between the sensor and the positioning portion.

[0014] In some embodiments, the sensing component includes a sensor and an elastic member, wherein the sensor is disposed between the outer sleeve and the probe bracket, and a distance H is left between the sensor and the bottom of the outer sleeve. The elastic member is sleeved on the outer surface of the support rod, and its opposite ends are respectively connected to the sensor and the probe bracket.

[0015] In some embodiments, the distance H is greater than 5 mm.

[0016] According to the burner provided above, it is realized by the following technical solution:

[0017] A burner comprises a burner body, wherein the burner body is provided with a central through hole, and further comprises a temperature measuring device capable of automatically switching temperature control as described above, wherein the temperature probe is installed at the central through hole and protrudes from the top of the central through hole, and the temperature probe is fixedly connected to the burner body via the probe bracket.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] The present invention adds a sensing component and, according to the different downward travels of the inner sleeve of the temperature probe caused by the frying pan and the pointed pot being placed on the pot, designs the temperature probe to contact the sensing component when the pointed pot is placed on the pot and automatically switch to a temperature monitoring failure state; and not contact the sensing component when the frying pan is placed on the pot and automatically switch to a temperature monitoring state. The present invention has a simple structure and can realize automatic switching of temperature control states, thus solving the problem of automatic flameout due to malfunction of the anti-dry burning gas stove when the user uses a pointed pot, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an exploded view of the burner in Example 1 of the present invention;

[0021] Figure 2 is a cross-sectional view of a burner in Example 1 of the present invention;

[0022] Figure 3 Figure 2 A partial enlarged view of part A;

[0023] Figure 4 is a cross-sectional view of a burner in Example 1 of the present invention;

[0024] Figure 5 Figure 4 A partial enlarged view of part B;

[0025] Figure 6 is a cross-sectional view of a burner in Example 1 of the present invention;

[0026] Figure 7 Figure 6 A partial enlarged view of part C. DETAILED DESCRIPTION

[0027] The following examples illustrate the present invention, but the present invention is not limited by these examples. Modifications to the specific embodiments of the present invention or equivalent replacement of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed by the present invention.

[0028] Example 1

[0029] refer to Figure 1-2 , this embodiment provides a temperature measuring device that can automatically switch temperature control, which is applied to a burner. The temperature measuring device includes a probe bracket 1, a temperature probe 2 and a sensing component 3. The probe bracket 1 has a mounting hole 101. The temperature probe 2 is inserted into the mounting hole 101, and the temperature probe 2 can switch between a temperature monitoring state and a temperature monitoring failure state. The sensing component 3 is arranged below or above the probe bracket 1. In this embodiment, taking the sensing component 3 being arranged below the probe bracket 1 as an example, when the temperature probe 2 moves downward and contacts the sensing component 3, the temperature probe 2 is switched to the temperature monitoring failure state, or when the temperature probe 2 moves downward and does not contact the sensing component 3, the temperature probe 2 is switched to the temperature monitoring state.

[0030] refer to Figure 2 In this embodiment, the temperature probe 2 includes a temperature sensing cap 21, a support rod 22, an outer sleeve 23, an inner sleeve 24 and a wire 25. The support rod 22 is inserted into the mounting hole 101, and the support rod 22 is fastened to the probe bracket 1 by screws. In this way, the temperature probe 2 can be stably and reliably mounted on the burner of the gas stove through the fastened support rod 22 and the probe bracket 1. The outer sleeve 23 can be movably sleeved on the upper end outer surface of the support rod 22, and the outer sleeve 23 can move up and down along the support rod 22. A temperature sensing cap 21 for contacting the bottom of the pot and detecting the temperature of the pot bottom is provided on the top of the outer sleeve 23.

[0031] The upper end of the inner sleeve 24 is arranged in the outer sleeve 23 and connected to the outer sleeve 23, so that the inner sleeve 24 can move up and down with the movement of the outer sleeve 23. The lower end of the inner sleeve 24 is passed through the support rod 22 and extends to the bottom of the probe bracket 1. The wire 25 is passed through the inner sleeve 24 and its upper end is connected to the temperature sensing cap 21, and its lower end is passed through the induction component 3 and electrically connected to the main controller of the gas stove. In this way, the temperature of the pot bottom detected by the temperature sensing cap 21 is transmitted to the main controller through the wire 25, so that the main controller can perform logical control according to the temperature of the pot bottom.

[0032] Specifically, the temperature probe 2 further includes a spring 26, which is disposed in the outer sleeve 23 and sleeved on the outer surface of the inner sleeve 24, and the upper end of the spring 26 is connected to or abuts against the upper end of the inner sleeve 24. When the pot is placed on the stove, the outer sleeve 23 and the inner sleeve 24 move downward and compress the spring 26; when the pot is moved away from the burner, the inner sleeve 24 is automatically pushed upward to reset under the preload force of the spring 26, and the movement of the inner sleeve 24 drives the outer sleeve 23 to move upward to the reset position synchronously, and the temperature sensing cap 21 moves upward to the reset position along with the outer sleeve 23.

[0033] refer to Figure 2-3 In this embodiment, the induction component 3 is arranged below the probe bracket 1, and the inner sleeve 24 selectively contacts the induction component 3 when the pot is placed on the pot and moves downward. According to whether the bottom of the pot is flat or arc-shaped, the pot is divided into a flat-bottomed pot and a pointed pot, which is also called a non-flat-bottomed pot.

[0034] According to the different downward travels of the inner sleeve 24 when the flat pan and the pointed pan are placed on the pot, the temperature probe 2 is designed so that when the flat pan is placed on the pot, the inner sleeve 24 moves downward due to the weight of the flat pan, and when the inner sleeve 24 moves down to the lowest position, it does not contact the sensing component 3. According to the characteristic that the sensing component 3 does not contact the inner sleeve 24, the temperature probe 2 is designed to automatically switch to the temperature monitoring state, at which time the temperature probe 2 detects the temperature of the bottom of the pot in real time. And the temperature probe 2 is designed so that when the pointed pan is placed on the pot, the inner sleeve 24 moves downward due to the weight of the flat pan, and when the inner sleeve 24 moves down to the lowest position, it contacts the sensing component 3. According to the characteristic that the sensing component 3 contacts the inner sleeve 24, the temperature probe 2 is designed to automatically switch to the temperature monitoring failure state, at which time the temperature probe 2 does not detect the temperature of the bottom of the pot.

[0035] It can be seen that the temperature measuring device of this embodiment, by adding a sensing component 3, and according to the different downward travels of the inner sleeve 24 of the temperature probe 2 when the flat pan and the pointed pot are placed, the temperature probe 2 is designed to contact the sensing component 3 when the pointed pot is placed, and automatically switch to the temperature monitoring failure state, and not contact the sensing component 3 when the flat pan is placed, and automatically switch to the temperature monitoring state. The structure is simple, and the temperature control state can be automatically switched, which solves the problem of the anti-dry burning gas stove malfunctioning and automatically shutting down when the user uses the pointed pot, and improves the user experience.

[0036] refer to Figure 3 In this embodiment, the sensor assembly 3 includes a sensor 31 and a support frame 32 having a mounting cavity 321. The support frame 32 is sleeved on the outer surface of the lower end of the inner sleeve 24 and is located below the probe bracket 1. The sensor 31 is arranged in the mounting cavity 321 and is located below the inner sleeve 24. A spacing H is left between the sensor 31 and the bottom of the inner sleeve 24. In addition, the sensor 31 is connected to the main controller of the gas stove.

[0037] Specifically, the first downward movement stroke of the inner sleeve 24 under the weight of the pan is less than the second downward movement stroke of the inner sleeve 24 under the weight of the pointed pan, and the first downward movement stroke < spacing H ≤ second downward movement stroke. More specifically, the spacing H is greater than 5mm. When hot, the spacing H can also be greater than any one of 6mm, 7mm, 8mm, 9mm and 10mm. Therefore, by reasonably designing the installation position of the sensor 31 (i.e., spacing H), it is ensured that the inner sleeve 24 contacts the sensor 31 when the pointed pan is placed on the pan, and the main controller of the gas stove controls the temperature probe 2 to automatically switch to the temperature monitoring failure state according to the contact signal, thereby avoiding the problem of the anti-dry burning gas stove malfunctioning and automatically shutting down when using the pointed pan. The inner sleeve 24 does not contact the sensor 31 when the pan is placed on the pan, and the main controller of the gas stove controls the temperature probe 2 to automatically switch to the temperature monitoring state according to the non-contact signal, thereby realizing real-time detection of the bottom temperature of the pot and avoiding safety accidents caused by dry burning of the pot.

[0038] refer to Figure 1-3 Specifically, the support frame 32 includes a horizontal section and a vertical section connected in an L shape, and a mounting cavity 321 is provided in the vertical section that runs through the top and bottom thereof, and the vertical section can be designed to not abut or abut the bottom of the probe bracket 1. Regarding the fixing of the support frame 32, the vertical section can be fixedly connected to the probe bracket 1, and / or the horizontal section can be fixedly connected to the bottom shell of the gas stove, so that the support frame 32 itself is reliably fixed.

[0039] Specifically, the sensor 31 may be fixedly disposed in the mounting cavity 321 of the support frame 32 , or the sensor 31 may be designed to be movably disposed in the mounting cavity 321 of the support frame 32 up and down.

[0040] refer to Figure 3 , this embodiment takes the example that the sensor 31 can be movably arranged in the installation cavity 321 up and down. Specifically, the sensor component 3 also includes an elastic member 33, and a limiting portion 322 located below the sensor 31 is provided in the installation cavity 321. The elastic member 33 is arranged in the installation cavity 321, and it is clamped between the sensor 31 and the limiting portion 322. Therefore, by adding the elastic member 33, with the help of the deformation ability of the elastic member 33, when different types of pointed pots are placed on the pot, the second downward movement stroke of the inner sleeve 24 under the gravity of the pointed pot can be adaptively adjusted, and the inner sleeve 24 can be ensured to reliably contact the sensor 31, thereby improving the adaptability and versatility. In addition, when the pointed pot is moved, the pre-tightening force of the elastic member 33 can push the sensor 31 to reset.

[0041] Specifically, the installation cavity 321 is divided into upper and lower ends along the vertical direction, and the horizontal cross-sectional area of ​​the upper half is larger than that of the lower half, so that a limit portion 322 is formed at the connection between the upper half and the lower half.

[0042] refer to Figure 1-2This embodiment also provides a burner, including a burner body 4, the burner body 4 is provided with a central through hole 401, and also includes a temperature measuring device capable of automatically switching temperature control as described above, the temperature probe 2 is installed at the central through hole 401, and its upper end protrudes from the top of the central through hole 401, and the temperature probe 2 is firmly connected to the burner body 4 through the probe bracket 1. Thus, the temperature probe 2 is firmly and reliably connected to the burner body 4 through the probe bracket 1, and the temperature measuring device has a simple structure and can automatically switch the temperature control state, thereby solving the problem of the automatic flameout of the anti-dry burning gas stove when the user uses a pointed pot, and improving the user experience.

[0043] Example 2

[0044] refer to Figure 4-5 , the difference between this embodiment and the first embodiment is that the structure and installation position of the induction component 3 are different. Specifically, the induction component 3 includes an induction component 31 and a support seat 34. The support seat 34 is arranged outside the support rod 22 and is located between the bottom of the jacket 23 and the top of the probe bracket 1. The induction component 31 is arranged on the support seat 34 and is located below the jacket 23. A spacing H is left between the induction component 31 and the bottom of the jacket 23. It can be seen that the induction component 31 is installed between the bottom of the jacket 23 and the top of the probe bracket 1 through the support seat 34, so that the temperature control is automatically switched according to the different downward travels of the jacket 23 when the pointed pot or the flat pan is placed on the pot, ensuring that the jacket 23 does not contact the induction component 31 when the flat pan is placed on the pot, so that the temperature probe 2 automatically switches to the temperature monitoring state, and the bottom temperature of the flat pan is detected in real time. When the pointed pot is placed on the pot, the jacket 23 contacts the induction component 31, so that the temperature probe 2 automatically switches to the temperature monitoring failure state, avoiding the problem of the anti-dry burning gas stove malfunctioning and automatically shutting down when the user uses the pointed pot, thereby improving the user experience.

[0045] In this embodiment, the support seat 34 has a center hole 341. During installation, the support seat 34 is sleeved on the outer surface of the support rod 22 and connected to the probe bracket 1 or the burner head of the burner body. The sensor 31 is installed on the top of the support seat 34 or in the center hole 341.

[0046] The sensing assembly 3 further includes an elastic member 33, which is sleeved on the outer surface of the support rod 22, and the elastic member 33 can be designed to be clamped between the sensor 31 and the top of the probe bracket 1. Of course, it can also be designed that the support seat 34 is provided with a positioning portion 342 located below the sensor 31, and the elastic member 33 is clamped between the sensor 31 and the positioning portion 342. This embodiment takes the elastic member 33 clamped between the sensor 31 and the positioning portion 342 as an example.

[0047] Example 3

[0048] refer to Figure 6-7The difference between this embodiment and the second embodiment lies in the structure of the sensing component 3. Specifically, the sensing component 3 includes a sensor 31 and an elastic member 33. The sensor 31 is arranged between the bottom of the outer jacket 23 and the top of the probe bracket 1, and a distance H is left between the sensor 31 and the bottom of the outer jacket 23. The elastic member 33 is sleeved on the outer surface of the support rod 22, and the opposite ends of the elastic member 33 are respectively connected to the sensor 31 and the probe bracket 1. Therefore, by connecting the opposite ends of the elastic member 33 to the sensor 31 and the probe bracket 1, the support seat 34 can be omitted, so that the overall structure of the sensing component 3 is simpler and the cost is lower.

[0049] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A temperature measuring device capable of automatically switching temperature control, characterized in that: include: A probe bracket (1), the probe bracket (1) having a mounting hole (101); A temperature probe (2), the temperature probe (2) being inserted into the mounting hole (101), and the temperature probe (2) being capable of switching between a temperature monitoring state and a temperature monitoring failure state; A sensing component (3), wherein the sensing component (3) is arranged below or above the probe bracket (1), and when the temperature probe (2) moves downward and contacts the sensing component (3), the temperature probe (2) is switched to a temperature monitoring failure state, or when the temperature probe (2) moves downward and does not contact the sensing component (3), the temperature probe (2) is switched to a temperature monitoring state.

2. A temperature measuring device capable of automatically switching temperature control according to claim 1, characterized in that: The temperature probe (2) comprises a temperature sensing cap (21), a support rod (22), an outer sleeve (23) and an inner sleeve (24); the support rod (22) is inserted into the mounting hole (101) and is fixedly connected to the probe bracket (1); the outer sleeve (23) is movably sleeved on the outer surface of the upper end of the support rod (22); the temperature sensing cap (21) is arranged on the top of the outer sleeve (23); the inner sleeve (24) is respectively arranged in the support rod (22) and the outer sleeve (23); the upper end of the inner sleeve (24) is connected to the outer sleeve (23), and the lower end extends to the bottom of the probe bracket (1); The sensing component (3) is arranged below the probe support (1), and the inner sleeve (24) selectively contacts the sensing component (3) when moving downward, or the sensing component (3) is arranged between the probe support (1) and the outer sleeve (23), and the outer sleeve (23) selectively contacts the sensing component (3) when moving downward.

3. A temperature measuring device capable of automatically switching temperature control according to claim 2, characterized in that: The sensing component (3) comprises a sensor (31) and a support frame (32) having a mounting cavity (321); the support frame (32) is sleeved on the outer surface of the lower end of the inner sleeve (24) and is located below the probe bracket (1); the sensor (31) is arranged in the mounting cavity (321) and is located below the inner sleeve (24); and a spacing H is left between the sensor (31) and the bottom of the inner sleeve (24).

4. A temperature measuring device capable of automatically switching temperature control according to claim 3, characterized in that: The sensing component (3) further comprises an elastic member (33), a limiting portion (322) located below the sensor (31) is provided in the installation cavity (321), and the elastic member (33) is arranged in the installation cavity (321) and is clamped between the sensor (31) and the limiting portion (322).

5. A temperature measuring device capable of automatically switching temperature control according to claim 2, characterized in that: The sensing assembly (3) comprises a sensor (31) and a support seat (34); the support seat (34) is arranged outside the support rod (22) and between the outer cover (23) and the probe bracket (1); the sensor (31) is arranged on the support seat (34) and below the outer cover (23); a spacing H is left between the sensor (31) and the bottom of the outer cover (23).

6. A temperature measuring device capable of automatically switching temperature control according to claim 5, characterized in that: The support seat (34) has a central hole (341), the support seat (34) is sleeved on the outer surface of the support rod (22) and connected to the probe bracket (1) or the furnace head, and the sensor (31) is installed on the top of the support seat (34) or in the central hole (341).

7. A temperature measuring device capable of automatically switching temperature control according to claim 5, characterized in that: The sensing component (3) further comprises an elastic member (33) sleeved on the outer surface of the support rod (22), wherein the elastic member (33) is clamped between the sensor (31) and the top of the probe bracket (1). Alternatively, the support seat (34) is provided with a positioning portion (342) located below the sensor (31), and the elastic member (33) is clamped between the sensor (31) and the positioning portion (342).

8. A temperature measuring device capable of automatically switching temperature control according to claim 2, characterized in that: The sensing component (3) comprises a sensor (31) and an elastic member (33); the sensor (31) is arranged between the outer sleeve (23) and the probe bracket (1); a distance H is left between the sensor (31) and the bottom of the outer sleeve (23); the elastic member (33) is sleeved on the outer surface of the support rod (22), and its opposite ends are respectively connected to the sensor (31) and the probe bracket (1).

9. A temperature measuring device capable of automatically switching temperature control according to any one of claims 3 to 8, characterized in that: The spacing H is greater than 5 mm.

10. A burner, comprising a burner body (4), the burner body (4) being provided with a central through hole (401), characterized in that: It also comprises a temperature measuring device capable of automatically switching temperature control as claimed in any one of claims 1 to 9, wherein the temperature probe (2) is installed at the central through hole (401) and protrudes from the top of the central through hole (401), and the temperature probe (2) is fixedly connected to the burner body (4) via the probe bracket (1).

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