Temperature sensor, water tank and heat pump system having the same

Abstract

The present application provides a temperature sensor, a water tank, and a heat pump system having the same, including a temperature sensing body and an adsorption structure. The adsorption structure is disposed on the temperature sensing body, and the adsorption structure can adsorb a structure to be installed to fix the temperature sensing body on the structure to be installed. According to the temperature sensor of the present application, the temperature measurement is more accurate and the assembly is convenient.

Description

Technical Field

[0001] This application belongs to the technical field of heat pump systems, and particularly relates to a temperature sensor, a water tank, and a heat pump system having the same. Background Art

[0002] Currently, a temperature sensor is provided in the water tank of a heat pump water heater to detect the water temperature in the water tank for controlling the start and stop of the heat pump. To accurately control the temperature, multiple temperature sensors are also installed at different positions in the water tank.

[0003] However, the form of the water tank temperature sensor is mainly a circular copper shell structure, which is installed by inserting into the blind tube of the water tank. However, it is easy to get damp, resulting in the resistance value of the temperature sensor shifting, inaccurate temperature measurement, and affecting the use. The second method is to use a patch type installation fixed by screws on the inner liner of the water tank. However, the line contact affects heat conduction, and at the same time, the assembly efficiency is low. Obviously, the installation method of the temperature sensor in the prior art affects the accuracy of temperature measurement and has a low assembly efficiency.

[0004] Therefore, how to provide a temperature sensor, a water tank, and a heat pump system having the same with more accurate temperature measurement and convenient assembly has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] Therefore, the technical problem to be solved by this application is to provide a temperature sensor, a water tank, and a heat pump system having the same with more accurate temperature measurement and convenient assembly.

[0006] To solve the above problems, this application provides a temperature sensor, including:

[0007] A temperature sensing body;

[0008] And an adsorption structure, the adsorption structure is arranged on the temperature sensing body, and the adsorption structure can adsorb the structure to be installed to fix the temperature sensing body on the structure to be installed.

[0009] Further, the temperature sensing body includes a thermistor and a lead wire connected to each other; the temperature sensing body further includes a housing, the thermistor is arranged inside the housing, and the lead wire extends out of the housing; the inside of the housing is filled with a sealing material. [[ID=3,3]]

[0010] Further, the temperature sensing body further includes a flexible structure, the flexible structure wraps around the outside of the housing; the adsorption structure is arranged on the flexible structure.

[0011] Further, the flexible structure includes a flexible sleeve, the flexible sleeve is sleeved on the housing; the outer surface of the housing has a temperature sensing area, and an opening is arranged on the flexible sleeve; the position of the opening corresponds to the temperature sensing area, so that the temperature sensing area can be in direct contact with the structure to be installed.

[0012] Further, the flexible structure includes a connecting structure, the connecting structure is connected to the outer peripheral side of the flexible sleeve, and the adsorption structure is arranged on the connecting structure.

[0013] Further, the flexible structure has a connecting surface; when the adsorption structure adsorbs the structure to be installed, the connecting surface can be attached to the structure to be installed.

[0014] Further, the number of the connecting structures is set to two, the two connecting structures are arranged oppositely, and the adsorption structures are arranged on both of the two connecting structures.

[0015] Further, the adsorption structure includes a magnetic part;

[0016] And / or, when the temperature sensing body further includes a housing and the flexible structure is wrapped outside the housing, the flexible structure is made of silicone rubber material; and / or, the housing is made of ceramic material;

[0017] And / or, the adsorption structure is arranged inside the temperature sensing body.

[0018] According to still another aspect of the present application, a water tank is provided, which includes a temperature sensor, the temperature sensor is the above-mentioned temperature sensor, and the water tank forms the structure to be installed.

[0019] According to still another aspect of the present application, a heat pump system is provided, which includes a water tank, and the water tank is the above-mentioned water tank.

[0020] For the temperature sensor, the water tank and the heat pump system having the same provided by the present application, the temperature measurement of the present application is more accurate, and the assembly is convenient. The adsorption structure is used to fix the temperature sensing body on the structure to be installed by adsorption. The adsorption structure does not affect heat conduction, can ensure the temperature measurement accuracy of the temperature sensing body, and is convenient for assembly. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of the temperature sensor according to the embodiment of the present application;

[0022] Figure 2 It is a schematic connection structure diagram of the water tank and the temperature sensor according to the embodiment of the present application.

[0023] The reference numerals are shown as:

[0024] 1. Thermistor; 2. Sealing material; 3. Housing; 4. Flexible structure; 5. Adsorption structure; 6. Lead wire; 7. Connecting surface; 8. Temperature sensing area; 91. Inner tank of the water tank; 92. Outer shell of the water tank. Detailed Embodiments

[0025] See in conjunction with Figure 1-2As shown in the figure, a temperature sensor includes a temperature-sensing body and an adsorption structure 5. The adsorption structure 5 is arranged on the temperature-sensing body and can adsorb the structure to be installed, so as to fix the temperature-sensing body on the structure to be installed. By using the adsorption structure 5 to fix the temperature-sensing body on the structure to be installed in an adsorption manner, the adsorption structure 5 does not affect heat conduction, can ensure the temperature measurement accuracy of the temperature-sensing body, and is convenient for assembly. The adsorption structure 5 can be adjusted according to the material and surface state of the structure to be installed. When the structure to be installed is made of metal, the adsorption structure 5 can be a magnetic structure such as a magnet, which is adsorbed by magnetic force; or when the structure to be installed is made of any other material, a magnetic material can be coated on its surface or a metal sheet can be pasted, and a magnet can also be used for magnetic adsorption; the adsorption structure 5 can also be a Velcro connection method. Here, a corresponding surface structure can be formed on the surface of the structure to be installed so that it can form a Velcro with the adsorption structure 5 and can be repeatedly tried to paste, which does not affect the temperature measurement accuracy and is also convenient for assembly. The structure to be installed can be a water tank, or any environment that needs temperature measurement such as an air conditioner or a refrigerator.

[0026] Some embodiments of the present application are also disclosed. The temperature-sensing body includes a thermistor 1 and a lead wire 6 that are connected to each other; the temperature-sensing body further includes a housing 3. The thermistor 1 is arranged inside the housing 3, and the lead wire 6 extends out of the housing 3; the inside of the housing 3 is filled with a sealing material 2. The sealing material 2 is a heat-conducting material and has a sealing performance. The thermistor 1 is a thermistor 1 chip, whose resistance value changes with temperature. There are lead wires 6 welded to both ends of the thermistor 1 chip for leading out the feedback temperature signal. There is the sealing material 2 outside the thermistor 1 chip and the welding part with the lead wire 6. The sealing material 2 has high heat conductivity, which can seal the thermistor 1 chip and enable the chip to maintain good contact with the lead wire to transmit the resistance change signal; the sealing material 2 can be a rubber made of butadiene; the sealing material 2 can also be a glass crystal material.

[0027] Some embodiments of the present application are also disclosed. The temperature-sensing body further includes a flexible structure 4. The flexible structure 4 is wrapped outside the housing 3; the adsorption structure 5 is arranged on the flexible structure 4. The flexible structure 4 has a sealing property and high heat conductivity. The flexible structure 4 not only has good sealing performance but also is soft. It can be in surface-to-surface contact with the structure to be installed, thereby increasing the heat transfer area, accurately sensing the temperature, and improving the operation reliability of the heat pump water tank; the flexible structure 4 is a sealing structure.

[0028] Some embodiments of the present application are also disclosed. The flexible structure 4 includes a flexible sleeve. The flexible sleeve is sleeved on the housing 3; the outer surface of the housing 3 has a temperature-sensing area 8, and an opening is provided on the flexible sleeve; the position of the opening corresponds to the temperature-sensing area 8 so that the temperature-sensing area 8 can be in direct contact with the structure to be installed, which can make the temperature measurement more accurate.

[0029] The present application also discloses some embodiments. The flexible structure 4 includes a connecting structure which is connected to the outer peripheral side of the flexible sleeve, and the adsorption structure 5 is arranged on the connecting structure. The connecting structure and the flexible sleeve can be integrally connected; they can also be made separately and then connected. The number of the adsorption structures 5 can be set to at least one, and the connecting structure can also be an annular structure. When the number of the adsorption structures 5 is more than two, the two or more adsorption structures 5 are arranged in sequence around the circumference of the flexible sleeve, and the fixation is more accurate.

[0030] The present application also discloses some embodiments. The flexible structure 4 has a connecting surface 7; when the adsorption structure 5 adsorbs the structure to be installed, the connecting surface 7 can be attached to the structure to be installed. At this time, the temperature sensing area 8 is exposed through the above-mentioned opening and contacts the structure to be installed. The connecting surface 7 is attached to the structure to be installed on the outer peripheral side of the opening, which can achieve good heat conduction effect and more accurate temperature measurement. The connecting surface is adapted to the installation surface of the structure to be installed. For example, if the surface of the structure to be installed is an arc surface, the connecting surface is an arc surface. The surface of the connecting structure and the surface of the flexible sleeve together form the connecting surface 7.

[0031] The present application also discloses some embodiments. The number of the connecting structures is set to two, and the two connecting structures are arranged oppositely, and the adsorption structures 5 are arranged on both of the two connecting structures. In this way, the fixation can be more stable, the structure is simple, and the flexible structure 4 can be in surface contact with the structure to be installed. The present application also discloses some embodiments. The adsorption structure 5 includes a magnetic part; the surface of the structure to be installed is adsorbed by magnetic force, which can improve the assembly, make the assembly simple and improve the production efficiency. The temperature sensing body of the present application is attached to the wall of the water tank inner liner 91 by magnetic adsorption, which improves the efficiency by 70% and reduces the cost by 40% compared with the traditional method of welding studs and screws on the wall of the water tank inner liner 91.

[0032] The present application also discloses some embodiments. When the temperature sensing body further includes a housing 3 and the flexible structure 4 is wrapped outside the housing 3, the flexible structure 4 is made of silicone rubber material; the silicone rubber is soft, and it can be in surface contact with the structure to be installed, thereby increasing the heat transfer area, accurately sensing the temperature and improving the operation reliability of the heat pump water tank.

[0033] The present application also discloses some embodiments. The housing 3 is made of ceramic material; the outer layer of the housing 3 is made of high thermal conductivity ceramic material, and the temperature sensitivity is beneficial to heat transfer to the chip to generate the Ohm effect.

[0034] The present application also discloses some embodiments. The adsorption structure 5 is arranged inside the temperature sensing body.

[0035] When the structure to be installed is a water tank, the outer layer is wrapped and formed with a soft silicone rubber material, which can achieve a sealing and waterproof effect. The contact end face with the water tank is an inwardly concave arc structure, that is, the connecting surface 7 is an arc surface, which can fit with the circular wall of the inner tank 91 of the water tank. The center position of the inwardly concave arc of the silicone rubber is the exposed temperature sensing area 8. The two sides wrap around the shell 3 for a certain distance to restrict and fix the seal. Thus, when the temperature sensor is in contact with the inner tank 91 of the water tank, the shell 3 made of high thermal conductivity ceramic material can quickly transfer heat and then the chip can quickly respond to the Ohm effect. There are magnetic parts implanted at the two wings of the silicone rubber shell, that is, the ends of the two connecting structures, such as magnets. When the silicone rubber is in contact with the carbon steel inner wall of the water tank, it can be directly adsorbed. Thus, the temperature sensing area 8 exposed on the inwardly concave surface of the silicone rubber temperature sensor just fits with the wall of the inner tank 91 of the water tank for temperature sensing.

[0036] During assembly, the temperature sensor is magnetically adsorbed on the wall of the inner tank 91 of the water tank by the two wings. The temperature is sensed in the middle position of the temperature sensor, and then the thermistor 1 chip generates a resistance change to achieve accurate temperature detection. The whole assembly process is simple, and the performance and service life of the temperature sensor are not affected by external forces such as assembly.

[0037] According to an embodiment of the present application, a water tank is provided, including a temperature sensor, and the temperature sensor is the above-mentioned temperature sensor. The water tank forms the structure to be installed. At this time, when it is adsorbed on the wall of the inner tank 91 of the water tank, the assembly can be improved, making the assembly simple and the production efficiency increased. The outer shell 3 is coated with a silicone rubber material, which not only seals and waterproofs, but also the silicone rubber material is soft and can directly fit on the wall of the inner tank 91 of the water tank for temperature sensing. The two wings of the temperature sensor are adsorbed and fixed to the carbon steel water tank by magnetic force. The installation is simple, the temperature sensor runs stably and reliably, the temperature sensing accuracy is greatly improved, and the service life of the temperature sensor is extended. The water tank also includes a water tank outer shell 92.

[0038] According to an embodiment of the present application, a heat pump system is provided, including a water tank, and the water tank is the above-mentioned water tank.

[0039] It is easy for those skilled in the art to understand that, on the premise of no conflict, the above-mentioned advantageous ways can be freely combined and superimposed.

[0040] The above is only a preferred embodiment of the present application, and it is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above is only the preferred implementation manner of the present application. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present application, several improvements and modifications can also be made, and these improvements and modifications should also be regarded as the protection scope of the present application.

Claims

1. A temperature sensor, characterized in that, Comprising: A temperature-sensing body; And an adsorption structure (5), the adsorption structure (5) is arranged on the temperature-sensing body, and the adsorption structure (5) can adsorb the structure to be installed so as to fix the temperature-sensing body on the structure to be installed; The temperature-sensing body comprises a thermistor (1) and a lead wire (6) which are connected to each other; the temperature-sensing body further comprises a housing (3), the thermistor (1) is arranged in the housing (3), and the lead wire (6) extends out of the housing (3); the interior of the housing (3) is filled with a sealing material (2); The temperature-sensing body further comprises a flexible structure (4), and the flexible structure (4) is wrapped outside the housing (3); the adsorption structure (5) is arranged on the flexible structure (4); The flexible structure (4) comprises a flexible sleeve which is sleeved on the housing (3); the outer surface of the housing (3) has a temperature-sensing area (8), and an opening is arranged on the flexible sleeve; the position of the opening corresponds to that of the temperature-sensing area (8) so that the temperature-sensing area (8) can be in direct contact with the structure to be installed; The flexible structure (4) has a connecting surface (7); when the adsorption structure (5) adsorbs the structure to be installed, the connecting surface (7) can be attached to the structure to be installed, and the flexible structure is used for heat conduction.

2. The temperature sensor according to claim 1, wherein The flexible structure (4) comprises a connecting structure which is connected to the outer peripheral side of the flexible sleeve, and the adsorption structure (5) is arranged on the connecting structure.

3. The temperature sensor according to claim 2, characterized in that, ​ 4. The temperature sensor according to any one of claims 1-3, characterized in that, ​ ​ ​ 5. A water tank, including a temperature sensor, characterized in that, ​ 6. A heat pump system, comprising a water tank, characterized in that, ​

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