Steamer with induction function, coffee machine

Abstract

The utility model discloses a steam stick with induction function, coffee machine belongs to coffee machine's technical field, among them, including first shell, second shell, temperature sensor, sealing sleeve, and first shell has installation cavity in, second shell is installed on first shell to sealing installation cavity, sealing sleeve is arranged in installation cavity to form steam passage, limit groove with installation cavity is separated, temperature sensor is installed in limit groove, and temperature sensor is at least partially worn in second shell outside, second shell has steam hole, steam hole is linked together with steam passage. Because temperature sensor is at least partially located in second shell outside, when temperature sensor is inserted into milk, the temperature of milk can be detected, sealing sleeve is used for sealing or insulating temperature sensor and steam passage, avoids the heat of steam passage to influence temperature sensor, thereby improves steam stick detection temperature's sensitivity, reduces detection error.

Description

Technical Field

[0001] This utility model relates to the technical field of coffee machines, and in particular to a steam wand and coffee machine with a sensor function. Background Technology

[0002] In the coffee machine industry, a steam wand is used to inject steam into milk, causing it to foam. The foamed milk is then mixed with coffee to create a better-tasting beverage. However, during the milk foaming process, the steam wand cannot detect the milk's temperature, so the operator cannot accurately know the heating temperature after the milk foam has been frothed.

[0003] Currently, people have developed steam rods that can output steam and detect temperature. Steam is used to foam and heat milk. However, when detecting milk temperature, the temperature sensor is easily affected by the steam, which makes the temperature detection inaccurate. Utility Model Content

[0004] The purpose of this invention is to improve the problem of inaccurate temperature detection in existing steam wands and to provide a steam wand and coffee machine with sensing function.

[0005] The technical solutions for achieving the above objectives include the following:

[0006] A steam rod includes: a first outer shell, a second outer shell, a temperature sensor, and a sealing sleeve. The first outer shell has a mounting cavity, and the second outer shell is mounted on the first outer shell and seals the mounting cavity.

[0007] The sealing sleeve is disposed in the installation cavity and separates the installation cavity to form a steam channel and a limiting groove. The temperature sensor is installed in the limiting groove and the temperature sensor is at least partially inserted outside the second outer shell.

[0008] The second outer casing has a steam vent that communicates with a steam channel.

[0009] In one embodiment, the sealing sleeve includes a first collar, a second collar, and a third collar, wherein the first collar and the second collar are fixed together, and the second collar is located on one side of the first collar. The limiting groove is formed inside the first collar, and the second collar forms the steam passage.

[0010] The third ring is connected to the first ring. Both the first and third rings are sleeved on the outside of the temperature sensor, and the third ring is at least partially disposed between the outer wall of the temperature sensor and the inner wall of the second housing.

[0011] In one embodiment, the temperature sensor includes a probe, a body, and a connecting wire, wherein the probe is mounted on a first end of the body, and the connecting wire is mounted on a second end of the body;

[0012] The first ring is fitted outside the main body, the third ring is fitted outside the probe, and the probe is at least partially located outside the second outer shell.

[0013] In one embodiment, the main body has a first positioning block, and the first collar has a first positioning groove that mates with the first positioning block;

[0014] The first outer shell has a positioning frame, the outer side of the positioning frame has a second positioning groove, and the first collar has a second positioning block that cooperates with the second positioning groove;

[0015] The inner side of the positioning frame abuts against the main body.

[0016] In one embodiment, the steam rod further includes a sealing ring, the first outer shell and the second outer shell are threadedly connected, the sealing ring is sleeved on the outside of the first outer shell, and the sealing ring abuts against the first outer shell and the second outer shell respectively.

[0017] In one embodiment, the steam rod further includes an outer tube and an inner tube. The outer tube is sleeved outside the inner tube and is threadedly connected to a first outer shell. The outer tube communicates with the mounting cavity, and the inner tube is at least partially located inside the mounting cavity, forming the steam channel inside the inner tube.

[0018] In one embodiment, the outer tube is bent, the inner tube has a shape corresponding to the shape of the outer tube, and the first outer shell is disposed at the lower end of the outer tube;

[0019] The outer tube includes a first tube body, a second tube body, and a third tube body, which are connected in sequence. A first bending angle is formed between the axis of the first tube body and the axis of the second tube body, and a second bending angle is formed between the axis of the second tube body and the axis of the third tube body.

[0020] The degree of the second bend angle is greater than that of the first bend angle.

[0021] In one embodiment, the steam rod further includes a rotating head and a support block. The support block is installed on the upper end of the outer sleeve and extends circumferentially along the outer sleeve. The rotating head includes a first hemisphere and a second hemisphere. Both the first and second hemispheres are installed on the support block and rotate in cooperation with it. The first and second hemispheres are fixedly connected.

[0022] In one embodiment, the temperature sensor and the steam vent outside the second housing are located on the same end of the second housing, and the steam vent and the temperature sensor are located far apart.

[0023] This utility model also proposes a coffee machine, including a control circuit board and a steam wand with sensing function as described above. The temperature sensor of the steam wand is electrically connected to the control circuit board. When the temperature value sensed by the temperature sensor exceeds a preset threshold, the temperature sensor drives the circuit of the control circuit board to disconnect.

[0024] The technical solution provided by this utility model has the following advantages and effects:

[0025] During installation, the second outer shell can be disassembled, a temperature sensor placed inside the mounting cavity, and then the second outer shell reinstalled. A sealing sleeve is placed inside the mounting cavity, separating it to form a limiting groove and a steam channel. The limiting groove restricts the temperature sensor, improving its stability within the mounting cavity. The steam channel connects to a steam generator or steam pipe; steam from the pipe is output into the steam channel and then through a steam hole into the milk. Since the temperature sensor is at least partially located outside the second outer shell, it can detect the milk's temperature when immersed in it. The sealing sleeve seals or isolates the temperature sensor from the steam channel, preventing heat from the steam channel from affecting the temperature sensor, thereby improving the sensitivity of the steam rod's temperature detection and reducing detection errors. Attached Figure Description

[0026] The accompanying drawings illustrate specific examples of the technical solutions described in this utility model, and together with the detailed embodiments, form part of the specification, serving to explain the technical solutions, principles, and effects of this utility model.

[0027] Unless otherwise specified or defined, the same reference numerals in different figures represent the same or similar technical features, and different reference numerals may be used to represent the same or similar technical features.

[0028] Figure 1 This is a schematic diagram of the structure of the steam rod in one embodiment of the present invention;

[0029] Figure 2 This is an exploded view of the steam rod in one embodiment of the present invention.

[0030] Figure 3 This is a cross-sectional view of the steam rod in one embodiment of the present invention;

[0031] Figure 4 This is one embodiment of the present invention. Figure 3 Enlarged view of point A;

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Steam rod; 1. Outer tube; 101. Support block; 102. First tube body; 103. Second tube body; 104. Third tube body; 105. First bend angle; 106. Second bend angle; 2. Rotating head; 201. First hemisphere; 202. Second hemisphere; 3. First outer shell; 31. Positioning frame; 311. Mounting cavity; 32. Sealing sleeve; 321. Third collar; 322. First collar; 323. Second collar; 324. Second positioning block; 4. Second outer shell; 41. Steam hole; 42. Sealing ring; 5. Temperature sensor; 51. Probe; 52. Main body; 521. First positioning block; 53. Connecting wire; 6. Inner tube; 61. Steam passage. Detailed Implementation

[0034] To facilitate understanding of this utility model, the specific embodiments of this utility model will be described in more detail below with reference to the accompanying drawings.

[0035] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0036] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0037] It should be noted that when a component is considered "fixed" to another component, it can be directly fixed to the other component or there can be an intervening component; when a component is considered "connected" to another component, it can be directly connected to the other component or there can be an intervening component; when a component is considered "mounted" on another component, it can be directly mounted on the other component or there can be an intervening component; when a component is considered "placed" on another component, it can be directly placed on the other component or there can be an intervening component.

[0038] This utility model proposes a steam rod 100 with sensing function, such as Figures 1 to 4 As shown, the device includes a first outer shell 3, a second outer shell 4, a temperature sensor 5, and a sealing sleeve 32. The first outer shell 3 has an installation cavity 311. The second outer shell 4 is installed on the first outer shell 3 and seals the installation cavity 311. The sealing sleeve 32 is disposed in the installation cavity 311 and separates the installation cavity 311 to form a steam channel 61 and a limiting groove. The temperature sensor 5 is installed in the limiting groove, and the temperature sensor 5 is at least partially inserted outside the second outer shell 4. The second outer shell 4 has a steam hole 41, which communicates with the steam channel 61.

[0039] Specifically, the second outer shell 4 is mounted on the first outer shell 3 and is used to seal the mounting cavity 311. During installation, the second outer shell 4 can be disassembled, the temperature sensor 5 placed in the mounting cavity 311, and then the second outer shell 4 can be reinstalled. The sealing sleeve 32 is disposed in the mounting cavity 311, separating the mounting cavity 311 to form a limiting groove and a steam channel 61. The limiting groove is used to limit the temperature sensor 5 and improve the stability of the temperature sensor 5 in the mounting cavity 311. The steam channel 61 is used to connect a steam device or a steam pipe. The steam from the steam pipe is output into the steam channel 61 and output into the milk through the steam hole 41. Since the temperature sensor 5 is at least partially located outside the second outer shell 4, the temperature of the milk can be detected when the temperature sensor 5 is inserted into the milk. The sealing sleeve 32 is used to seal or isolate the temperature sensor 5 from the steam channel 61, preventing the heat from the steam channel 61 from affecting the temperature sensor 5, thereby improving the sensitivity of the steam rod 100 in detecting temperature and reducing detection error.

[0040] Furthermore, the temperature sensor 5 is installed at the center of the second outer shell 4, and multiple steam holes 41 are distributed around the temperature sensor 5, which can improve the efficiency of milk frothing and more accurately sense the temperature of the cow. Structurally, there is also a sealing sleeve 32 to wrap the temperature sensor 5, so that it is completely isolated from the steam in the steam channel 61, preventing the steam temperature from interfering with the temperature sensor 5's sensing of milk temperature. The steam channel 61 leads directly to the steam holes 41, and the structure has no multiple parts connecting or bends, preventing milk from remaining in corners and gaps. At the same time, the structure of the second outer shell 4 is also simple, and it can be disassembled from the first outer shell 3, making it easy to clean and leaving the area clean and tidy after use.

[0041] In this embodiment, the sealing sleeve 32 is made of heat-insulating material and has a strong heat insulation effect.

[0042] Preferably, the sealing sleeve 32 includes a first sleeve ring 322, a second sleeve ring 323, and a third sleeve ring 321. The first sleeve ring 322 is fixed to the second sleeve ring 323, and the second sleeve ring 323 is located on one side of the first sleeve ring 322. A limiting groove is formed in the first sleeve ring 322, and the second sleeve ring 323 forms a steam passage 61. The third sleeve ring 321 is connected to the first sleeve ring 322. Both the first sleeve ring 322 and the third sleeve ring 321 are sleeved on the outside of the temperature sensor 5, and the third sleeve ring 321 is at least partially disposed between the outer wall of the temperature sensor 5 and the inner wall of the second outer casing 4.

[0043] Specifically, the first ring 322 is used to fix the temperature sensor 5, and the second ring 323 is used to form the steam channel 61 or fix the inner pipe 6 for outputting steam. The first ring 322, the second ring 323, and the third ring 321 are an integral structure. The second ring 323 is located on one side of the first ring 322, so that the steam channel 61 is parallel to the temperature sensor 5. The third ring 321 is also sleeved on the outside of the temperature sensor 5. The third ring 321 is at least partially disposed between the outer wall of the temperature sensor 5 and the inner wall of the second outer shell 4. The third ring 321 is used to insulate the temperature of the steam channel 61. Moreover, the steam channel 61 is connected to the steam hole 41. The temperature of the steam channel 61 will affect the temperature of the second outer shell 4, and the third ring 321 will also insulate the temperature of the second outer shell 4, further preventing the temperature sensor 5 from detecting the temperature inaccurately.

[0044] Preferably, the temperature sensor 5 includes a probe 51, a body 52, and a connecting wire 53. The probe 51 is mounted on the first end of the body 52, and the connecting wire 53 is mounted on the second end of the body 52. ​​A first sleeve 322 is fitted over the body 52, and a third sleeve 321 is fitted over the probe 51. The probe 51 is at least partially located outside the second outer casing 4. Specifically, the probe 51 is used to contact the milk, and the body 52 is used to convert the temperature of the probe 51 into an electrical signal, which is transmitted to the control circuit board via the connecting wire 53 and displayed on the screen. The user can preset the temperature value through the operating program. When the temperature sensor 5 of the steam rod 100 detects that the preset temperature value has been reached, the program can stop the machine from working.

[0045] Furthermore, the first ring 322 and the third ring 321 also have a sealing function. When the probe 51 is inserted into the milk, the third ring 321 prevents the milk from entering the limiting groove. When the milk enters the mounting cavity 311 through the steam hole 41, the second outer shell 4 can be removed to clean the steam channel 61 and the mounting cavity 311.

[0046] Preferably, the main body 52 has a first positioning block 521 on its exterior, and the first collar 322 has a first positioning groove that mates with the first positioning block 521; the first outer shell 3 has a positioning frame 31 inside, the outer side of the positioning frame 31 has a second positioning groove, and the first collar 322 has a second positioning block 324 that mates with the second positioning groove; the inner side of the positioning frame 31 abuts against the main body 52. ​​Specifically, the first positioning block 521 engages with the first positioning groove, which plays a positioning role in the installation and fixation of the main body 52, improving assembly efficiency and the stability of the first collar 322 when it is fitted outside the main body 52; the second positioning block 324 engages with the second positioning groove, which positions and installs the first collar 322, improving the stability of the first collar 322 after it mates with the positioning frame 31; moreover, the inner side of the positioning frame 31 also abuts against the main body 52, further improving the stability of the main body 52 within the mounting cavity 311.

[0047] In some embodiments, the steam rod 100 further includes a sealing ring 42. The first outer shell 3 and the second outer shell 4 are threadedly connected. The sealing ring 42 is sleeved on the outside of the first outer shell 3 and abuts against both the first outer shell 3 and the second outer shell 4. Specifically, since the sealing ring 42 is sleeved on the outside of the first outer shell 3, when the first outer shell 3 and the second outer shell 4 are connected, the sealing ring 42 abuts against both the first outer shell 3 and the second outer shell 4. The sealing ring 42 is used to seal the gap between the first outer shell 3 and the second outer shell 4, improve the sealing performance of the mounting cavity 311, and prevent steam from leaking from the gap in the steam passage 61.

[0048] In some embodiments, to improve the operational adaptability of the steam rod 100, the steam rod 100 further includes an outer sleeve 1 and an inner tube 6. The outer sleeve 1 is fitted over the inner tube 6 and is threadedly connected to the first outer shell 3. The outer sleeve 1 communicates with the mounting cavity 311. The inner tube 6 is at least partially located within the mounting cavity 311 and serves as a steam pipe, forming a steam channel 61 within it. Specifically, the outer sleeve 1 is connected to the first outer shell 3, and the inner tube 6 is disposed outside the outer sleeve 1, with at least a portion of it located within the mounting cavity 311. By adding the outer sleeve 1, the length of the steam rod 100 can be increased, allowing the steam rod 100 to be operated by holding the outer sleeve 1. Furthermore, the inner tube 6 is used to connect to a steam device, and the steam generated by the steam device is output to the steam hole 41 through the inner tube 6, improving the operational flexibility of the steam rod 100.

[0049] In some embodiments, the outer tube 1 is bent, the inner tube 6 has a shape corresponding to the shape of the outer tube 1, and the first outer shell 3 is disposed at the lower end of the outer tube 1. Specifically, by setting the outer tube 1 to be bent, the inner tube 6 has a shape corresponding to the shape of the outer tube 1, and the first outer shell 3 is disposed at the lower end of the outer tube 1, the lower end of the outer tube 1 can be rotated along its upper end by holding the upper end of the outer tube 1; and when the upper end of the outer tube 1 is installed on the coffee machine, by rotating the lower end of the outer tube 1, the coverage area of ​​the first outer shell 3 is further increased, thereby increasing the usability of the steam wand 100.

[0050] Preferably, the outer tube 1 includes a first tube 102, a second tube 103, and a third tube 104, which are connected in sequence. A first bending angle 105 is formed between the axis of the first tube 102 and the axis of the second tube 103, and a second bending angle 106 is formed between the axis of the second tube 103 and the axis of the third tube 104. The degree of the second bending angle 106 is greater than that of the first bending angle 105.

[0051] Specifically, the first tube 102, the second tube 103, and the third tube 104 are connected sequentially. The first tube 102 serves as the mounting point and the connection point for the rotating steam rod 100. A first bending angle 105 is formed between the axis of the first tube 102 and the axis of the second tube 103, and a second bending angle 106 is formed between the axis of the second tube 103 and the axis of the third tube 104. The degree of the second bending angle 106 is greater than that of the first bending angle 105. When the outer tube 1 rotates around the first tube 102, its rotation path is umbrella-shaped, further improving the coverage of the output and detection ends of the steam rod 100.

[0052] In some embodiments, the steam rod 100 further includes a rotating head 2 and a support block 101. The support block 101 is mounted on the upper end of the outer sleeve 1 and extends circumferentially along the outer sleeve 1. The rotating head 2 includes a first hemisphere 201 and a second hemisphere 202. Both the first hemisphere 201 and the second hemisphere 202 are mounted on the support block 101 and rotatably engage with it. The first hemisphere 201 and the second hemisphere 202 are fixedly connected. Specifically, the support block 101 supports the first hemisphere 201 and the second hemisphere 202. After the first hemisphere 201 and the second hemisphere 202 are fixedly connected, both the first hemisphere 201 and the second hemisphere 202 rotatably engage with the support block 101, thus achieving a rotatable connection between the rotating head 2 and the support block 101. During assembly, the rotating head 2 can be fixed to a coffee machine. With the rotating head 2 as a fulcrum, both the output end and the detection end of the steam rod 100 rotate around the rotating head 2.

[0053] Preferably, the temperature sensor 5 and the steam hole 41 are located on the same end of the second housing 4, and the steam hole 41 and the temperature sensor 5 are positioned far apart. Specifically, by positioning the steam hole 41 and the temperature sensor 5 far apart, the temperature generated by the steam emitted from the steam hole 41 is prevented from affecting the temperature sensor 5's detection of the milk temperature, thereby further improving the detection accuracy of the temperature sensor 5.

[0054] This invention also proposes a coffee machine, including a control circuit board and a steam wand 100 with sensing function as described above. The temperature sensor 5 of the steam wand 100 is electrically connected to the control circuit board. When the temperature value sensed by the temperature sensor 5 exceeds a preset threshold, the temperature sensor 5 drives the circuit of the control circuit board to disconnect. Specifically, by setting the temperature sensor 5, the temperature of the milk can be detected. When the milk temperature is too high, the coffee machine can be controlled to stop heating or stop inputting steam.

[0055] When referencing drawings, new features are explained. To avoid redundant references to drawings that would make the description less concise, features already described will not be referenced again on the drawings if the description is clear.

[0056] The purpose of the above embodiments is to reproduce and derive the technical solution of this utility model by way of example, and to fully describe the technical solution, purpose and effect of this utility model. The purpose is to enable the public to have a more thorough and comprehensive understanding of the disclosed content of this utility model, and it is not intended to limit the protection scope of this utility model.

[0057] The above embodiments are not an exhaustive list based on the present invention, and there may be other embodiments not listed. Any substitutions and improvements made without departing from the concept of the present invention are within the protection scope of the present invention.

Claims

1. A steam rod with sensing function, characterized in that, include: The device comprises a first housing, a second housing, a temperature sensor, and a sealing sleeve. The first housing has a mounting cavity inside, and the second housing is mounted on the first housing and seals the mounting cavity. The sealing sleeve is disposed in the installation cavity and separates the installation cavity to form a steam channel and a limiting groove. The temperature sensor is installed in the limiting groove and the temperature sensor is at least partially inserted outside the second outer shell. The second outer casing has a steam vent that communicates with a steam channel.

2. The steam rod with sensing function as described in claim 1, characterized in that, The sealing sleeve includes a first collar, a second collar, and a third collar. The first collar and the second collar are fixed together, and the second collar is located on one side of the first collar. The limiting groove is formed inside the first collar, and the second collar forms the steam passage. The third ring is connected to the first ring. Both the first and third rings are sleeved on the outside of the temperature sensor, and the third ring is at least partially disposed between the outer wall of the temperature sensor and the inner wall of the second housing.

3. The steam rod with sensing function as described in claim 2, characterized in that, The temperature sensor includes a probe, a body, and a connecting wire. The probe is installed at the first end of the body, and the connecting wire is installed at the second end of the body. The first ring is fitted outside the main body, the third ring is fitted outside the probe, and the probe is at least partially located outside the second outer shell.

4. The steam rod with sensing function as described in claim 3, characterized in that, The main body has a first positioning block, and the first collar has a first positioning groove that cooperates with the first positioning block; The first outer shell has a positioning frame, the outer side of the positioning frame has a second positioning groove, and the first collar has a second positioning block that cooperates with the second positioning groove; The inner side of the positioning frame abuts against the main body.

5. The steam rod with sensing function as described in claim 4, characterized in that, It also includes a sealing ring, the first outer shell and the second outer shell are threadedly connected, the sealing ring is sleeved on the outside of the first outer shell, and the sealing ring abuts against the first outer shell and the second outer shell respectively.

6. The steam rod with sensing function as described in any one of claims 1 to 5, characterized in that, It also includes an outer tube and an inner tube. The outer tube is sleeved outside the inner tube and is threadedly connected to the first outer shell. The outer tube communicates with the mounting cavity. The inner tube is at least partially located inside the mounting cavity, and the steam passage is formed inside the inner tube.

7. The steam rod with sensing function as described in claim 6, characterized in that, The outer tube is bent, the inner tube has a shape corresponding to the outer tube, and the first outer shell is disposed at the lower end of the outer tube; The outer tube includes a first tube body, a second tube body, and a third tube body, which are connected in sequence. A first bending angle is formed between the axis of the first tube body and the axis of the second tube body, and a second bending angle is formed between the axis of the second tube body and the axis of the third tube body. The degree of the second bend angle is greater than that of the first bend angle.

8. The steam rod with sensing function as described in claim 7, characterized in that, It also has a rotating head and a support block. The support block is installed on the upper end of the outer tube and extends circumferentially along the outer tube. The rotating head includes a first hemisphere and a second hemisphere. Both the first hemisphere and the second hemisphere are installed on the support block and rotate in cooperation with the support block. The first hemisphere and the second hemisphere are fixedly connected.

9. The steam rod with sensing function as described in any one of claims 1 to 5, characterized in that, The temperature sensor and the steam vent are located on the same end of the second housing, and the steam vent and the temperature sensor are positioned far apart.

10. A coffee machine, characterized in that, The device includes a control circuit board and a steam bar with sensing function as described in any one of claims 1 to 9, wherein the temperature sensor of the steam bar is electrically connected to the control circuit board; when the temperature value sensed by the temperature sensor exceeds a preset threshold, the temperature sensor drives the circuit of the control circuit board to disconnect.

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