Replaceable temperature sensor

Abstract

The utility model provides a replaceable temperature sensor, include: temperature transmission stop cap, sealing device, bottle mouth valve casing, temperature transmission lead and temperature transmission chip, one end of bottle mouth valve casing sets up boss structure, is provided with first accommodating cavity in bottle mouth valve casing, is provided with second accommodating cavity with first accommodating cavity intercommunication in boss structure, temperature transmission stop cap and sealing device set up in the other end of bottle mouth valve casing and be located in first accommodating cavity, temperature transmission stop cap and sealing device with bottle mouth valve casing detachable connection, temperature transmission chip sets up in second accommodating cavity, one end of temperature transmission lead is connected with temperature transmission chip, the other end of temperature transmission lead passes first accommodating cavity, sealing device and temperature transmission stop cap and extends to bottle mouth valve casing outside, first accommodating cavity and second accommodating cavity fill in heat conduction structure, the utility model discloses can realize the convenient replacement and maintenance of temperature sensor under the premise of guaranteeing temperature measurement performance, improve the maintainability and economy of equipment.

Description

Technical Field

[0001] This utility model relates to the field of temperature sensor technology, specifically to a replaceable temperature sensor, particularly an externally integrated online replaceable temperature sensor, and especially to an externally integrated temperature sensor assembly that is easy to replace and has good performance. Background Technology

[0002] In many industrial and commercial applications, temperature sensors are often integrated with devices such as bottle valves to monitor the temperature inside containers. In this traditional integration method, the bottle valve is threaded onto the gas cylinder, and the temperature sensor passes through the valve, directly contacting the gas inside the cylinder. The connection between the temperature sensor and the bottle valve is sealed. When the temperature sensor malfunctions or fails, it needs to be removed from the bottle valve for replacement. However, due to the sealed connection, removing the sensor damages the seal. When a new temperature sensor is subsequently installed, the seal is no longer intact, allowing gas to leak from the cylinder. Therefore, often the entire bottle valve needs to be replaced, which is not only costly and complex but also requires downtime for maintenance and replacement, severely impacting production or operational continuity. Therefore, there is an urgent need for a solution that allows for easy replacement of temperature sensors without affecting the overall performance of the equipment.

[0003] Patent document CN217059090U discloses a temperature sensor for a fuel cell vehicle bottle neck valve, including a sensor and a valve body. The valve body has a cavity for accommodating the sensor, which is mounted within the cavity via an embedded nut. The sensor has two grooves, each containing a first sealing ring and a second sealing ring. However, this patent document still suffers from the drawback of requiring the entire bottle neck valve to be replaced when the temperature sensor malfunctions or fails. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a replaceable temperature sensor.

[0005] A replaceable temperature sensor according to the present invention includes: a temperature sensing cap, a sealing device, a bottle valve housing, a temperature sensing lead wire, and a temperature sensing chip.

[0006] A boss structure is provided at one end of the bottle neck valve housing, a first receiving cavity is provided inside the bottle neck valve housing, and a second receiving cavity is provided inside the boss structure that communicates with the first receiving cavity.

[0007] The temperature transfer plug and the sealing device are disposed at the other end of the bottle neck valve housing and located within the first receiving cavity; the temperature transfer plug and the sealing device are detachably connected to the bottle neck valve housing;

[0008] The temperature transfer chip is disposed in the second receiving cavity, one end of the temperature transfer lead is connected to the temperature transfer chip, and the other end of the temperature transfer lead passes through the first receiving cavity, the sealing device and the temperature transfer plug and extends to the outside of the bottle valve housing.

[0009] The first and second accommodating cavities are filled with a heat-conducting structure, which can be pulled out of the first and second accommodating cavities by external force.

[0010] Preferably, the boss structure is a circular boss.

[0011] Preferably, the temperature transfer plug is threadedly connected to the bottle valve housing;

[0012] The inner wall of the first receiving cavity is provided with an external thread, and the outer wall of the temperature transmission plug is provided with an internal thread that matches the external thread.

[0013] Preferably, a limiting step is provided on the inner wall of the first receiving cavity;

[0014] The sealing device is installed at the position of the limiting step, and the limiting step is used to limit the sealing device.

[0015] Preferably, the thermally conductive structure is thermally conductive silicone grease.

[0016] Preferably, the temperature transfer plug is provided with a first wire channel for the temperature transfer lead to pass through;

[0017] The first line channel is filled with a colloidal structure.

[0018] Preferably, the sealing device is provided with a second wire channel for the temperature transfer lead to pass through;

[0019] The second linear channel is filled with the heat-conducting structure.

[0020] Preferably, the temperature transfer lead is connected and fixed to the sealing device.

[0021] Preferably, the temperature transfer lead is connected to the sealing device by adhesive.

[0022] Preferably, when the temperature transfer plug is removed from the bottle valve housing, the temperature transfer plug can pull out part of the heat-conducting structure, the temperature transfer lead, and the temperature transfer chip from the first receiving cavity and the second receiving cavity.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. This utility model adopts an integrated temperature transmission design, in which the sealing device, temperature transmission lead wire, and temperature transmission chip are assembled into a temperature transmission component. This eliminates the leakage point at the connection between the traditional valve and the temperature sensor, greatly reducing the risk of valve failure due to leakage. At the same time, when the temperature sensor fails, the operator only needs to remove the failed temperature sensor from the outside of the valve by simply turning the temperature transmission plug, and install a new temperature sensor within minutes. No complicated processing of the entire system and valve is required, which greatly reduces the maintenance cost of temperature transmission failure and improves the overall reliability and operating efficiency of the system.

[0025] 2. This utility model has a round boss on the bottle valve housing, and a temperature transfer chip can be placed inside the boss from the outside. The round boss is in full contact with the gas inside the bottle, thereby speeding up the temperature reading speed of the temperature transfer chip.

[0026] 3. This invention fills the cavity containing the temperature sensor chip with thermally conductive silicone grease, thereby enhancing the sensitivity of the temperature sensor. Attached Figure Description

[0027] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0028] Figure 1 This is a cross-sectional schematic diagram of a replaceable temperature sensor.

[0029] The diagram shows:

[0030] Temperature transfer cap 1, temperature transfer chip 5

[0031] Sealing device 2, boss structure 6

[0032] Bottle neck valve housing 3 Limiting step 7

[0033] Thermal lead 4, thermally conductive structure 8 Detailed Implementation

[0034] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0035] Example 1:

[0036] like Figure 1 As shown, this embodiment provides a replaceable temperature sensor, including: a temperature sensing cap 1, a sealing device 2, a bottle valve housing 3, a temperature sensing lead 4, and a temperature sensing chip 5; one end of the bottle valve housing 3 is provided with a boss structure 6, a first receiving cavity is provided inside the bottle valve housing 3, and a second receiving cavity communicating with the first receiving cavity is provided inside the boss structure 6; the temperature sensing cap 1 and the sealing device 2 are provided at the other end of the bottle valve housing 3 and are located in the first receiving cavity; the temperature sensing cap 1 and the sealing device 2 are detachably connected to the bottle valve housing 3; the temperature sensing chip 5 is provided in the second receiving cavity, one end of the temperature sensing lead 4 is connected to the temperature sensing chip 5, and the other end of the temperature sensing lead 4 extends through the first receiving cavity, the sealing device 2, and the temperature sensing cap 1 to the outside of the bottle valve housing 3. The sealing device 2 can be a sealing ring.

[0037] The first and second accommodating cavities are filled with a heat-conducting structure 8, which can be pulled out of the first and second accommodating cavities by external force. When the temperature-transfer cap 1 is removed from the bottle valve housing 3, the temperature-transfer cap 1 can pull out part of the heat-conducting structure 8, the temperature-transfer lead 4, and the temperature-transfer chip 5 from the first and second accommodating cavities. The heat-conducting structure 8 will not be completely pulled out.

[0038] The thermally conductive structure 8 is made of thermally conductive silicone grease. The temperature transfer plug 1 has a first wire channel for the temperature transfer lead 4 to pass through; the first wire channel is filled with a gel structure. The sealing device 2 has a second wire channel for the temperature transfer lead 4 to pass through; the second wire channel is filled with the thermally conductive structure 8. The temperature transfer lead 4 is connected and fixed to the sealing device 2. The temperature transfer lead 4 and the sealing device 2 are connected by adhesive.

[0039] Apply thermal grease to the position where it just touches the installation location of the temperature transfer plug 1, without obstructing the installation of the temperature transfer plug 1. Then tighten the temperature transfer plug 1 and then pour in silicone rubber. The silicone rubber can be Nanda 704 glue, which serves to waterproof, dustproof, and fix the plug.

[0040] When installing a new temperature sensor, install the temperature lead 4 and temperature chip 5 along the channel formed on the thermally conductive structure 8 and the colloidal structure when it is pulled out, and then fill in the missing thermally conductive structure 8 and colloidal structure.

[0041] The boss structure 6 is a circular boss. The temperature transfer plug 1 is threadedly connected to the bottle valve housing 3; the inner wall of the first receiving cavity is provided with an external thread, and the outer wall of the temperature transfer plug 1 is provided with an internal thread that matches the external thread. The inner wall of the first receiving cavity is provided with a limiting step 7; the sealing device 2 is installed at the position of the limiting step 7, and the limiting step 7 is used to limit the sealing device 2.

[0042] In this embodiment, the sealing device 2, which is installed on the bottle valve housing 3, functions to prevent water and dust from entering the bottle.

[0043] The existing structure has a valve connected to the gas cylinder via a thread. The temperature sensor passes through the valve and comes into direct contact with the gas inside the cylinder. When the temperature sensor is replaced, the sealing structure between the temperature sensor and the valve body 3 fails, and the gas inside the cylinder will leak out from there. Therefore, the only solution is to replace the valve.

[0044] In this embodiment, the temperature sensor is located inside the valve housing 3 and does not directly contact the gas inside the gas cylinder. Temperature measurement is achieved through the temperature transmission chip 5 at the boss structure 6. When replacing the temperature sensor, it can be replaced directly on the valve. The airtightness between the temperature sensor and the cylinder valve will not affect the airtightness of the gas cylinder. Even if the airtightness between the temperature sensor and the cylinder valve is damaged, the gas inside the gas cylinder will not leak out. Therefore, when the temperature sensor malfunctions or fails, only the temperature sensor needs to be replaced, and the cylinder valve does not need to be replaced.

[0045] Example 2:

[0046] Those skilled in the art can understand this embodiment as a more specific description of Embodiment 1.

[0047] This embodiment provides an externally integrated, online-replaceable temperature sensor assembly.

[0048] like Figure 1 As shown, a circular boss is machined onto the bottle valve housing 3, allowing a temperature sensing chip 5 to be placed inside from the outside. The circular boss makes full contact with the gas inside the bottle, thereby accelerating the temperature reading speed of the temperature sensing chip 5. On the other hand, filling the cavity containing the temperature sensing chip 5 with thermally conductive silicone grease also enhances the sensitivity of the temperature sensor. Through this design of increasing the thermal conductivity area and optimizing the thermal conductivity medium, the sensitivity of the temperature sensor under this scheme can be effectively ensured to be almost the same as that of the temperature sensor in contact with the gas inside the bottle.

[0049] The sealing device 2, temperature transfer lead 4, and temperature transfer chip 5 are assembled into a temperature transfer assembly in advance. The sealing device 2 and temperature transfer lead 4 are combined together in advance with glue. The sealing device 2 can effectively prevent external dust and moisture from entering the cavity where the temperature sensor is located, thus eliminating the possibility of temperature sensor failure due to external media.

[0050] The installation of the temperature sensor using this solution is very convenient. Simply insert the temperature transfer component into the housing cavity. Due to the limiting design between the sealing device 2 and the bottle valve housing 3, the installation of the temperature transfer component can be ensured by controlling the length of the temperature transfer lead 4 between the sealing device 2 and the temperature transfer chip 5. The temperature transfer chip 5 is then installed inside the round boss of the bottle valve. After inserting the temperature transfer component into the housing cavity, fill the cavity with thermally conductive silicone grease, and then tighten the temperature transfer cap 1 to the bottle valve housing 3 using threads.

[0051] If the temperature sensor is broken, short-circuited, or needs to be upgraded, replacing it with a new temperature sensor is just as easy. Simply unscrew the temperature sensor cap 1 from the bottle valve housing 3 using a tool. The method for installing a new temperature sensor is the same as the method described in the previous paragraph.

[0052] This embodiment provides an externally integrated, online-replaceable temperature sensor assembly, overcoming the problem in the prior art where the temperature sensor is difficult to replace separately after being integrated with the bottle valve. While ensuring temperature measurement performance, it enables convenient replacement and maintenance of the temperature sensor, improving the maintainability and economy of the equipment.

[0053] This embodiment employs an integrated temperature sensor design, eliminating leakage points at the connection between the traditional valve and temperature sensor, significantly reducing the risk of valve failure due to leakage. Furthermore, when the temperature sensor malfunctions, operators can easily remove the faulty sensor from the outside of the valve and install a new one within minutes, without requiring any complex modifications to the entire system or valve. This greatly reduces maintenance costs associated with temperature sensor failures and improves the overall reliability and operational efficiency of the system.

[0054] This invention enables convenient replacement and maintenance of temperature sensors while ensuring temperature measurement performance, thereby improving the maintainability and economy of the equipment.

[0055] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0056] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A replaceable temperature sensor, characterized in that, include: Temperature transfer plug (1), sealing device (2), bottle valve housing (3), temperature transfer lead wire (4), and temperature transfer chip (5); One end of the bottle valve housing (3) is provided with a boss structure (6), the bottle valve housing (3) is provided with a first receiving cavity, and the boss structure (6) is provided with a second receiving cavity that communicates with the first receiving cavity; The temperature transfer plug (1) and the sealing device (2) are disposed at the other end of the bottle valve housing (3) and located in the first receiving cavity; the temperature transfer plug (1) and the sealing device (2) are detachably connected to the bottle valve housing (3); The temperature transfer chip (5) is disposed in the second accommodating cavity. One end of the temperature transfer lead (4) is connected to the temperature transfer chip (5), and the other end of the temperature transfer lead (4) extends through the first accommodating cavity, the sealing device (2), and the temperature transfer plug (1) to the outside of the bottle valve housing (3). The first and second accommodating cavities are filled with a thermally conductive structure (8).

2. The replaceable temperature sensor according to claim 1, characterized in that, The boss structure (6) is a circular boss.

3. The replaceable temperature sensor according to claim 1, characterized in that, The temperature transmission plug (1) is threadedly connected to the bottle valve housing (3); The inner wall of the first receiving cavity is provided with an external thread, and the outer wall of the temperature transmission plug (1) is provided with an internal thread that matches the external thread.

4. The replaceable temperature sensor according to claim 1, characterized in that, A limiting step (7) is provided on the inner wall of the first receiving cavity; The sealing device (2) is installed at the position of the limiting step (7), and the limiting step (7) is used to limit the sealing device (2).

5. The replaceable temperature sensor according to claim 1, characterized in that, The thermally conductive structure (8) is thermally conductive silicone grease.

6. The replaceable temperature sensor according to claim 1, characterized in that, The temperature transfer cap (1) is provided with a first wire channel for the temperature transfer lead (4) to pass through; The first line channel is filled with a colloidal structure.

7. The replaceable temperature sensor according to claim 1, characterized in that, The sealing device (2) is provided with a second wire channel for the heat transfer lead (4) to pass through; The second linear channel is filled with the heat-conducting structure (8).

8. The replaceable temperature sensor according to claim 1, characterized in that, The temperature transfer lead (4) is connected and fixed to the sealing device (2).

9. The replaceable temperature sensor according to claim 8, characterized in that, The temperature transfer lead (4) is connected to the sealing device (2) by glue.

10. The replaceable temperature sensor according to claim 1, characterized in that, When the temperature transfer plug (1) is removed from the bottle valve housing (3), the temperature transfer plug (1) can pull out part of the heat-conducting structure (8), the temperature transfer lead (4) and the temperature transfer chip (5) from the first receiving cavity and the second receiving cavity.

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