Heated tray temperature detection mechanism of steam sterilizer

Abstract

The utility model discloses a heated tray temperature detection mechanism of a steam sterilizer, and relates to the technical field of steam sterilizers, and the steam sterilizer is provided with a steam sterilization chamber for accommodating a product to be sterilized, comprises a water storage heated tray corresponding to the steam sterilization chamber, and further comprises a mounting frame and a temperature probe; an electric heating piece for heating one side, deviating from the steam disinfection chamber, of the water storage heated tray is mounted on the mounting frame; an elastic piece for elastically jacking the temperature probe to one side, deviating from the steam sterilization chamber, of the water storage heating disc is further mounted on the mounting frame, and elastic jacking on the temperature probe is formed through the elastic piece, so that when the steam sterilization machine is vibrated, the vibration is absorbed by the elastic piece; the vibration damage to the temperature probe is effectively reduced, the contact detection of the temperature probe and the water storage heating disc can still be well maintained after vibration through the elastic jacking of the elastic piece, and the accuracy and the timeliness of temperature detection are effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of steam sterilizers, in particular to a temperature detection mechanism for a heating plate of a steam sterilizer. Background Art

[0002] The applicant previously applied for a Chinese utility model with the publication number 218075768U, "A steam sterilizer for baby bottles", which achieves high-temperature sterilization of baby bottles by heating the water in the water storage tray to generate water vapor. The heating method is that a water storage tray is arranged at the bottom of the placement slot, and the water storage tray is connected to a heating element. The heating element heats the water storage tray to form water vapor, thereby steam sterilizing the items in the storage assembly.

[0003] When the heating element heats the water storage pan, there may be too little water in the water storage pan or the water has evaporated, resulting in the water storage pan being too hot. To ensure safety, a corresponding temperature sensor is usually configured for it, and the temperature control is realized in combination with a control unit. When the water storage pan is detected to be too hot, the corresponding heating element (electric heating element) is controlled to reduce or stop generating heat, thereby effectively ensuring safety in use. For example, in the Chinese utility model "An automatic water-adding bottle sterilizing and drying device" with announcement number CN208989731U, a temperature sensor or temperature switch is fixed on the bottom of the heating pan, and the temperature sensor or temperature switch, heating wire block, control button, heating pan, flow pump and ventilation motor are all electrically connected to the control main board through connecting wires. Since the durability requirements for the temperature sensor are particularly high, in order to ensure as much as possible that the temperature sensor is normal and undamaged each time it is used, the above-mentioned patent No. CN208989731U adopts a fixed connection method to set the temperature sensor on the bottom surface of the heating plate. When the disinfection equipment is vibrated, the vibration is easily transmitted to the temperature sensor, causing it to suffer more obvious vibration damage, which is not conducive to ensuring the normal use of the temperature sensor. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a temperature detection mechanism for a heated plate of a steam sterilizer, the steam sterilizer having a steam sterilization chamber for accommodating products to be sterilized, including a water-storing heated plate corresponding to the steam sterilization chamber, and also including a mounting frame and a temperature probe; an electric heating element for heating a side of the water-storing heated plate facing away from the steam sterilization chamber is mounted on the mounting frame; an elastic element for elastically pressing the temperature probe onto a side of the water-storing heated plate facing away from the steam sterilization chamber is also mounted on the mounting frame.

[0006] As a further solution of the utility model: the elastic member includes a first connecting portion contacting and cooperating with the temperature probe, a second connecting portion connected to the mounting bracket, and an elastic connecting portion that is elastically bendable and connects the first connecting portion and the second connecting portion.

[0007] As a further solution of the utility model: the mounting frame is provided with a directional connection component for connecting the second connection part to the mounting frame, wherein the directional connection component connects the second connection part to the mounting frame along the direction in which the first connection part is directed to press the temperature probe against the water storage heating plate.

[0008] As a further solution of the utility model: a first through hole is formed on the second connecting part; the directional connecting component includes a connecting shaft that can be passed through the first through hole, and an axial guide is connected to the mounting frame, and the connecting shaft is formed with a moving state along the axial direction of the connecting shaft on the axial guide; a moving retaining component is provided on the connecting shaft or the axial guide to keep the connecting shaft in position after movement; the axial direction of the connecting shaft corresponds to the direction in which the first connecting part presses the temperature probe against the water storage heating plate; one end of the connecting shaft is connected to a tightening block that abuts against the second connecting part after passing through the first through hole, and the second connecting part is located between the axial guide and the tightening block.

[0009] As a further solution of the utility model: the axial guide is a sleeve-shaped fitting that cooperates with the connecting shaft; the moving and retaining assembly includes an external thread arranged on the outer circumferential surface of the connecting shaft, and an internal thread arranged on the inner circumferential surface of the axial guide.

[0010] As a further solution of the utility model: the first connecting part, the elastic connecting part and the second connecting part are all sheet-like structural parts.

[0011] As a further solution of the utility model: the temperature probe is a thermistor probe.

[0012] As a further solution of the utility model: the temperature probe has a cylindrical probe shell, a bottom surface of the cylindrical probe shell is a temperature-sensing contact surface that is press-fitted with a side of the water storage heating plate that is away from the steam sterilization chamber, and a force-bearing side wing extending outward is formed on the side surface of the cylindrical probe shell; a second through hole is penetrated by the first connecting portion, and when the cylindrical probe shell is penetrated by the second through hole, the edge of the opening of the second through hole forms a resisting fit with the force-bearing side wing, and the force-bearing side wing is located between the temperature-sensing contact surface and the edge of the opening of the second through hole.

[0013] As a further solution of the utility model: the electric heating element includes an electric heating tube bent in a semi-circular shape, and the electric heating tube is bent in a semi-circular shape to form an opening; the electric heating tube is whole close to the outer side of the bottom of the water storage heating plate, and forms a semi-closed inner ring space surrounded by the electric heating tube, and the inner ring space has a cold end close to the opening and a hot end away from the opening; the elastic member extends from the cold end to the hot end, and elastically presses the temperature probe to the outer side of the bottom of the water storage heating plate at the hot end.

[0014] Compared with the prior art, the beneficial effects of the present technical solution are as follows: the design forms an elastic top pressure on the temperature probe through an elastic part, so that when the steam sterilizer is subjected to vibration, the elastic part absorbs the vibration, so that the vibration damage to the temperature probe is effectively reduced, and through the elastic top pressure of the elastic part, after being subjected to vibration, the contact detection between the temperature probe and the water storage heating plate can still be better maintained, effectively ensuring the accuracy and timeliness of temperature detection.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 yes Figure 1 Structural cross-sectional view along the AA direction;

[0019] Figure 3 It is a structural schematic diagram of the elastic member in the utility model.

[0020] The corresponding reference numerals in the accompanying drawings are described as follows:

[0021] Steam sterilizer-1,

[0022] Steam sterilization room-2,

[0023] Water storage heating plate-3,

[0024] Mounting rack - 4,

[0025] Temperature probe-5, cylindrical probe housing-51,

[0026] Electric heating element-6, electric heating tube-61, opening-611, cold end-612, hot end-613,

[0027] Elastic member-7, first connecting portion-71, second connecting portion-72, elastic connecting portion-73,

[0028] Directional connection assembly-8, axial guide-82, tension block-83. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-3 , a heating plate temperature detection mechanism of a steam sterilizer, the steam sterilizer 1 having a steam sterilization chamber 2 for accommodating products to be sterilized. The heating plate temperature detection mechanism comprises a water-storage heating plate 3 corresponding to the steam sterilization chamber 2, and also comprises a mounting frame 4 and a temperature probe 5. The mounting frame 4 is mounted with an electric heating element 6 for heating the side of the water-storage heating plate 3 away from the steam sterilization chamber; the mounting frame 4 is also mounted with an elastic element 7 for elastically pressing the temperature probe 5 to the side of the water-storage heating plate 3 away from the steam sterilization chamber.

[0031] The temperature probe 5 is used to detect the temperature of the water storage heating plate 3. Combined with the control processing unit of the steam sterilizer 1, it can control the heat generation of the electric heating element to reduce or stop heating when the temperature is too high, so as to ensure safety in use, or perform other controls based on temperature detection.

[0032] The design forms an elastic top pressure on the temperature probe 5 through the elastic member 7, so that when the steam sterilizer is vibrated, the elastic member 7 absorbs the vibration, so that the vibration damage to the temperature probe 5 is effectively reduced. Moreover, through the elastic top pressure of the elastic member 7, the contact detection between the temperature probe 5 and the water storage heating plate 3 can still be better maintained after being vibrated, thereby effectively ensuring accurate and timely temperature detection.

[0033] Preferably, the electric heating element 6 includes an electric heating tube 61 bent in a semi-circular shape, and the electric heating tube 61 is bent in a semi-circular shape to form an opening 611. The electric heating tube 61 is entirely close to the outer side of the bottom of the water storage heating tray 3, and forms a semi-closed inner ring space surrounded by the electric heating tube 61, and the inner ring space has a cold end 612 close to the opening and a hot end 613 away from the opening. The elastic member 7 extends from the cold end 612 to the hot end 613, and elastically presses the temperature probe 5 onto the outer side of the bottom of the water storage heating tray 3 at the hot end 613.

[0034] On the one hand, by setting the temperature probe 5 at the hot end 613 for temperature detection, it is ensured that the detected temperature is close to the actual temperature of the water storage heating disk 3. On the other hand, by setting the elastic member 7 to extend from the cold end 612 to the hot end 613, and elastically pressing the temperature probe 5 to the outer surface of the bottom of the water storage heating disk 3 at the hot end 613, when the elastic member 7 presses the temperature probe 5, the temperature influence of the elastic member 7 on the temperature probe 5 when it contacts the temperature probe 5 is effectively reduced.

[0035] In the embodiment of the utility model, the elastic member 7 includes a first connection portion 71 that contacts and cooperates with the temperature probe 5, a second connection portion 72 that is connected to the mounting bracket 4, and an elastic connection portion 73 that is elastically bendable and connects the first connection portion 71 and the second connection portion 72. The first connection portion 71, the elastic connection portion 73, and the second connection portion 72 are preferably all sheet-like structural members.

[0036] The mounting frame 4 is provided with a directional connection component 8 for connecting the second connection part 72 to the mounting frame 4, wherein the directional connection component 8 connects the second connection part 72 to the mounting frame 4 along the direction in which the first connection part 71 is directed to press the temperature probe 5 against the water storage heating plate 3.

[0037] Preferably, the second connecting portion 72 is provided with a first through hole. The directional connecting assembly 8 includes a connecting shaft that can be provided in the first through hole, and an axial guide 82 is connected to the mounting frame 4, and the connecting shaft is formed in a moving state along the axial direction of the connecting shaft on the axial guide 82. A moving retaining assembly is provided on the connecting shaft or the axial guide 82 to keep the connecting shaft in position after the movement. The axial direction of the connecting shaft is the same or nearly the same as the direction in which the first connecting portion 71 presses the temperature probe 5 onto the water storage heating plate 3. After one end of the connecting shaft passes through the first through hole, a tightening block 83 that abuts against the second connecting portion 72 is connected, and the second connecting portion 72 is located between the axial guide 82 and the tightening block 83.

[0038] When the connecting shaft moves on the axial guide 82 along the direction in which the tensioning block 83 presses against the second connecting part, the above-mentioned "directional connecting component 8 is to connect the second connecting part 72 to the mounting frame 4 along the direction in which the first connecting part 71 presses the temperature probe 5 against the water storage heating plate 3" is formed.

[0039] More preferably, the axial guide 82 is a sleeve-shaped mating part that cooperates with the connecting shaft. The moving and holding assembly includes an external thread arranged on the outer circumferential surface of the connecting shaft, and an internal thread arranged on the inner circumferential surface of the axial guide 82. When the connecting shaft moves along the axial direction of the connecting shaft on the axial guide 82, the setting of the moving and holding assembly allows the connecting shaft to simultaneously rotate along its circumference, i.e., to move in a spiral manner. Through different depths of the screw connection, different degrees of compression and driving of the second connecting portion 72 are obtained, so that different degrees of elastic compression of the temperature probe 5 are achieved through the elastic connecting portion 73, and the applicability is better.

[0040] Furthermore, the temperature probe 5 is a thermistor probe. The temperature probe 5 has a cylindrical probe housing 51, a bottom surface of which is a temperature-sensitive contact surface that is press-fitted with a side of the water storage heating plate 3 that is away from the steam sterilization chamber, and a force-bearing flank extending outward is formed on the side of the cylindrical probe housing 51. A second through hole is provided on the first connecting portion 71. When the cylindrical probe housing 51 is provided on the second through hole, the edge of the opening of the second through hole forms a resisting fit with the force-bearing flank, and the force-bearing flank is located between the temperature-sensitive contact surface and the edge of the opening of the second through hole. The overall installation is convenient, and the temperature probe having the cylindrical probe housing 51 is not easy to be separated from the first connecting portion 71 when it is vibrated.

[0041] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A heating plate temperature detection mechanism of a steam sterilizer, the steam sterilizer having a steam sterilization chamber for accommodating products to be sterilized, characterized in that: It includes a water storage heating plate corresponding to the steam sterilization chamber, and also includes a mounting frame and a temperature probe; The mounting frame is provided with an electric heating element for heating the side of the water storage heating plate away from the steam sterilizing chamber; the mounting frame is also provided with an elastic element for elastically pressing the temperature probe to the side of the water storage heating plate away from the steam sterilizing chamber.

2. The heated plate temperature detection mechanism according to claim 1, characterized in that: The elastic member comprises a first connection part contacting and matching with the temperature probe, a second connection part connected with the mounting bracket, and an elastic connection part which is elastically bendable and connects the first connection part and the second connection part.

3. The heated plate temperature detection mechanism according to claim 2, characterized in that: The mounting frame is provided with a directional connection component for connecting the second connection part to the mounting frame, wherein the directional connection component connects the second connection part to the mounting frame in a direction in which the first connection part is directed to press the temperature probe against the water storage heating plate.

4. The heated plate temperature detection mechanism according to claim 3, characterized in that: The second connecting portion is provided with a first through hole; The directional connection assembly includes a connection shaft that can be inserted into the first through hole, an axial guide is connected to the mounting frame, and the connection shaft is formed on the axial guide to move along the axial direction of the connection shaft; The connecting shaft or the axial guide is provided with a moving retaining assembly for retaining the position of the connecting shaft after movement; The axial direction of the connecting shaft corresponds to the direction in which the first connecting portion presses the temperature probe against the water storage heating plate; One end of the connecting shaft is connected to a tension block that abuts against the second connecting portion after passing through the first through hole, and the second connecting portion is located between the axial guide member and the tension block.

5. The heated plate temperature detection mechanism according to claim 4, characterized in that: The axial guide member is a sleeve-shaped matching member that matches the connecting shaft; The moving and holding assembly includes an external thread arranged on the outer circumferential surface of the connecting shaft, and an internal thread arranged on the inner circumferential surface of the axial guide.

6. The heated plate temperature detection mechanism according to claim 4, characterized in that: The first connecting portion, the elastic connecting portion and the second connecting portion are all sheet-like structural parts.

7. The heated plate temperature detection mechanism according to any one of claims 2 to 6, characterized in that: The temperature probe is a thermistor probe.

8. The heated plate temperature detection mechanism according to claim 7, characterized in that: The temperature probe has a cylindrical probe housing, a bottom surface of which is a temperature-sensing contact surface that is press-fitted with a side of the water storage heating plate that is away from the steam sterilization chamber, and a force-bearing side wing extending outward is formed on the side surface of the cylindrical probe housing; A second through hole is penetrated on the first connecting portion. When the cylindrical probe housing is penetrated on the second through hole, the hole edge of the second through hole forms a resisting fit with the force-bearing side wing, and the force-bearing side wing is located between the temperature-sensitive contact surface and the hole edge of the second through hole.

9. The heated plate temperature detection mechanism according to claim 1 or 2 or 3 or 4 or 5 or 6 or 8, characterized in that: The electric heating element comprises an electric heating tube bent in a semi-circular shape, wherein the electric heating tube is bent in a semi-circular shape to form an opening; The electric heating pipe is entirely close to the outer side of the bottom of the water storage heating plate, and forms a semi-closed inner ring space surrounded by the electric heating pipe, and the inner ring space has a cold end close to the opening and a hot end away from the opening; The elastic member extends from the cold end to the hot end, and elastically presses the temperature probe onto the outer surface of the bottom of the water storage heating plate at the hot end.

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