Temperature sensing device

Abstract

A temperature sensing device comprises a shell and a temperature sensor inserted into the shell. An assembling cavity used for assembling a temperature sensor is formed in the shell, and a plurality of buckling grooves are formed in the assembling cavity. One end of the temperature sensor is provided with a framework, the framework is provided with a first strong buckling block and a second strong buckling block which are the same in shape and structure, the other end of the temperature sensor is provided with a thermistor, and one end, close to the thermistor, of the framework is provided with a sealing groove with a sealing ring; wherein the first strong buckling block is used for being buckled with the buckling groove, the temperature sensor is buckled in the assembling cavity through the strong buckling block, and a closed space is formed at one end of the assembling cavity through the sealing ring; according to the utility model, the strong buckling block is matched with the buckling groove to form a strong buckling structure, so that the assembly strength can reach 300N, the use effect of the NTC is prevented from being influenced, and the strong buckling structure is far better than a hot melting structure in the market.

Description

Technical Field

[0001] The utility model relates to industrial equipment, in particular to a temperature sensing device. Background Art

[0002] In the current field of temperature measurement and control, temperature sensors, as core components, are widely used in industries such as industrial control, consumer electronics, healthcare, and environmental monitoring. Among them, temperature sensors based on negative temperature coefficient (NTC) thermistors have become the most common type on the market due to their low cost, fast response speed, and high accuracy. However, despite the numerous performance advantages of NTC temperature sensors, their packaging process has become a key factor hindering their further development. Currently, the vast majority of NTC temperature sensors on the market use an epoxy coating structure to seal the head during production. While this epoxy coating structure provides some protection for the thermistor and isolates it from external interference, it also exposes a number of drawbacks. Epoxy adhesive, a poor conductor of heat, increases the thermal resistance between the thermistor and the external environment, thereby prolonging the sensor's thermal response time and reducing measurement accuracy and sensitivity. Once the thermistor is encapsulated with epoxy glue, its internal state is blocked by the encapsulation layer. Traditional detection methods make it difficult to determine in real time whether the thermistor is short-circuited, open-circuited, or otherwise damaged during sensor use, affecting the reliability and stability of the system. In addition, the epoxy glue curing process requires strict control of temperature, humidity, and other conditions, and the curing time is long, making the entire packaging process complex and inefficient, making it difficult to meet the needs of large-scale production.

[0003] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of this utility model is to provide a temperature sensing device that can effectively solve the above technical problems.

[0005] In order to achieve the purpose of this utility model, the following technical solutions are adopted:

[0006] A temperature sensing device, characterized by comprising a housing and a temperature sensor plugged into the housing;

[0007] The interior of the housing is provided with an assembly cavity for assembling the temperature sensor, and the assembly cavity is provided with a plurality of buckle grooves;

[0008] One end of the temperature sensor is provided with a frame, on which a first strong buckle block and a second strong buckle block of the same shape and structure are provided, the other end of the temperature sensor is provided with a thermistor, and the end of the frame close to the thermistor is provided with a sealing groove with a sealing ring;

[0009] The first strong buckle block is used to buckle with the buckle groove, the temperature sensor is buckled in the assembly cavity through the first strong buckle block, and one end of the assembly cavity forms a closed space through a sealing ring.

[0010] Furthermore, a pin is provided between the thermistor and the temperature sensor, and a pin insulating tube is sleeved on the pin.

[0011] Furthermore, the first strong buckle block is arranged at the bottom end of the second strong buckle block, wherein at least two first strong buckle blocks are provided and are evenly distributed on both sides of the frame, and at least two second strong buckle blocks are provided and are evenly distributed on both sides of the frame.

[0012] Furthermore, a sub-cavity for placing a thermistor extends from the top of the assembly cavity.

[0013] Furthermore, a mounting groove is provided at the top of the shell, and the outer surface of the sub-cavity is located in the mounting groove.

[0014] Furthermore, a first abutting block is provided on the frame, and a first abutting groove for engaging with the first abutting block is provided in the assembly cavity.

[0015] Furthermore, a second abutment block is provided at one end of the frame away from the first abutment block, and a second abutment groove for engaging with the second abutment block is provided in the assembly cavity.

[0016] Furthermore, a positioning groove is provided at one end of the frame close to the second abutting block, and a positioning block for plugging into the positioning groove is provided in the assembly cavity.

[0017] Furthermore, the outer surface of the first strong buckle block is a curved surface.

[0018] Furthermore, the sealing ring is made of rubber.

[0019] Compared with the existing technology, the present invention has the following beneficial effects: the present invention forms a strong buckle structure by cooperating with the first strong buckle block and the buckle groove, which can make the assembly strength reach 300N and avoid affecting the use effect of NTC, which is far stronger than the epoxy glue coating structure on the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0021] Figure 1 It is a three-dimensional diagram of the present utility model.

[0022] Figure 2 It is a cross-sectional view of the present utility model.

[0023] Figure 3 This is an exploded view of the present utility model.

[0024] Figure 4 This is a first structural schematic diagram of the temperature sensor of the present utility model.

[0025] Figure 5 This is a second structural schematic diagram of the temperature sensor of the present invention.

[0026] Figure 6 It is a cross-sectional view of the shell of the utility model.

[0027] In the figure: 1. Housing; 2. Temperature sensor; 3. Assembly cavity; 4. Buckle groove; 5. Skeleton; 6. First strong buckle block; 7. Thermistor; 8. Pin; 9. Sealing ring; 10. Sealing groove; 11. Pin insulation tube; 12. First abutting block; 13. First abutting groove; 14. Second abutting block; 15. Second abutting groove; 16. Positioning groove; 17. Positioning block; 18. Sub-cavity; 19. Mounting groove; 61. Second strong buckle block. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments.

[0029] In the description of the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0030] like Figures 1 to 6 As shown, a temperature sensing device includes a housing 1 and a temperature sensor 2 inserted into the housing 1; an assembly cavity 3 for assembling the temperature sensor 2 is provided inside the housing 1, and a buckle groove 4 is provided in the assembly cavity 3; a skeleton 5 is provided at one end of the temperature sensor 2, and a first strong buckle block 6 and a second strong buckle block 61 of the same shape and structure are provided on the skeleton 5, and a thermistor 7 is provided at the other end of the temperature sensor 2, and a sealing groove 10 with a sealing ring 9 is provided at the end of the skeleton 5 close to the thermistor 7; wherein, in this embodiment, the thermistor 7 is a negative temperature coefficient (NTC) thermistor, the first strong buckle block 6 is used to buckle with the buckle groove 4, the temperature sensor 2 is buckled into the assembly cavity 3 through the first strong buckle block 6, the sealing ring 9 is made of rubber material, and one end of the assembly cavity 3 is sealed The sealing ring 9 forms an enclosed space for preventing the thermistor 7; by arranging the first strong buckle block 6 and the second strong buckle block 61, when the first strong buckle block 6 is buckled with the buckle groove 4, the second strong buckle block 61 abuts against the inner wall of the assembly cavity 3, so that the housing 1 and the temperature sensor 2 can form a strong buckle structure, enhance the stability of the connection structure between the housing 1 and the temperature sensor 2, reduce the risk of the temperature sensor 2 falling off, and make the assembly strength of this embodiment reach up to 300N, and avoid affecting the thermal response time of the NTC, and prevent the sensor from responding slowly; by arranging the sealing ring 9 and the sealing groove 10 to cooperate with each other, a sealing structure is formed at one end of the assembly cavity 3 where the thermistor 7 is assembled, preventing liquid from entering this embodiment during use, and avoiding a short circuit of the thermistor 7.

[0031] Furthermore, the first strong buckle block 6 is disposed at the bottom end of the second strong buckle block 61. There are at least two first strong buckle blocks 6 evenly distributed on either side of the frame 5, and at least two second strong buckle blocks 61 evenly distributed on either side of the frame 5. The outer surface of the first strong buckle block 6 is a curved surface. In this embodiment, by evenly distributing the first and second strong buckle blocks 6, 61 on the frame 5 and combining the curved surfaces, the difficulty of connecting the first and second strong buckle blocks 6, 61, respectively, to the buckle slot 4 is reduced, further strengthening the connection structure between the temperature sensor 2 and the housing 1.

[0032] A mounting groove 19 is provided at the top of the housing 1, and a sub-cavity 18 for placing the thermistor 7 extends from the top of the assembly cavity 3. The outer surface of the sub-cavity 18 is in the mounting groove 19. A pin 8 is provided between the thermistor 7 and the temperature sensor 2. A pin insulating tube 11 is provided on the pin 8. By providing the pin insulating tube 11, deformation of the pin 8 causing a short circuit can be avoided, thereby preventing the thermal response time of the thermistor 7 from being affected, and further enhancing the response speed of the temperature sensor 2.

[0033] A first abutment block 12 is provided on the skeleton 5, and a first abutment groove 13 for engaging with the first abutment block 12 is provided in the assembly cavity 3. A second abutment block 14 is provided at the end of the skeleton 5 away from the first abutment block 12, and a second abutment groove 15 for engaging with the second abutment block 14 is provided in the assembly cavity 3. A positioning groove 16 is provided at the end of the skeleton 5 close to the second abutment block 14, and a positioning block 17 for plugging with the positioning groove 16 is provided in the assembly cavity 3; in this embodiment, by providing the positioning block 17 and the positioning groove 16, the connection position of the temperature sensor 2 and the assembly cavity 3 can be effectively located, preventing the thermistor 7 from being unable to be inserted into the sub-cavity 18 or the thermistor 7 from abutting against the inner wall of the assembly cavity and bending, thereby reducing the difficulty of assembly and avoiding the risk of damage.

[0034] Working principle: Place one end of the temperature sensor 2 with the thermal surface resistor 7 horizontally into the assembly cavity 3 in the housing 1, and make the positioning groove 16 and the positioning block 17 plugged in, and then push the temperature sensor 2 into the assembly cavity 3, so that the first abutment block 12 is engaged with the first abutment groove 13, the second abutment block 14 is engaged with the second abutment groove 15, the first strong buckle block 6 is plugged with the buckle groove 4, and the second strong buckle block 61 is abutted against the inner wall of the assembly cavity 61, the thermistor 7 and the pin insulation tube 11 are completely inserted into the sub-cavity 18 and the sealing ring 9 is abutted against the sealing groove 10 to form a sealing structure, and the assembly is completed.

[0035] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0036] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A temperature sensing device, characterized in that: It comprises a housing (1) and a temperature sensor (2) plugged into the housing (1); An assembly cavity (3) for assembling a temperature sensor (2) is provided inside the housing (1), and a plurality of buckle grooves (4) are provided in the assembly cavity (3); One end of the temperature sensor (2) is provided with a frame (5), and a first strong buckle block (6) and a second strong buckle block (61) having the same shape and structure are provided on the frame (5); the other end of the temperature sensor (2) is provided with a thermistor (7), and the end of the frame (5) close to the thermistor (7) is provided with a sealing groove (10) with a sealing ring (9); The first strong buckle block (6) is used for buckling with the buckle groove (4), the temperature sensor (2) is buckled into the assembly cavity (3) through the first strong buckle block (6), and one end of the assembly cavity (3) forms a closed space through a sealing ring (9).

2. A temperature sensing device according to claim 1, characterized in that: A pin (8) is provided between the thermistor (7) and the temperature sensor (2), and a pin insulating tube (11) is sleeved on the pin (8).

3. A temperature sensing device according to claim 2, characterized in that: The first strong buckle block (6) is provided at the bottom end of the second strong buckle block (61), wherein at least two of the first strong buckle blocks (6) are provided and are evenly distributed on both sides of the frame (5), and at least two of the second strong buckle blocks (61) are provided and are evenly distributed on both sides of the frame (5).

4. A temperature sensing device according to claim 3, characterized in that: A sub-cavity (18) for placing the thermistor (7) extends from the top end of the assembly cavity (3).

5. A temperature sensing device according to claim 4, characterized in that: A mounting groove (19) is provided at the top end of the housing (1), and the outer surface of the sub-cavity (18) is located in the mounting groove (19).

6. A temperature sensing device according to claim 5, characterized in that: A first abutment block (12) is provided on the frame (5), and a first abutment groove (13) for engaging with the first abutment block (12) is provided in the assembly cavity (3).

7. A temperature sensing device according to claim 6, characterized in that: A second abutment block (14) is provided at one end of the frame (5) away from the first abutment block (12), and a second abutment groove (15) for engaging with the second abutment block (14) is provided in the assembly cavity (3).

8. A temperature sensing device according to claim 7, characterized in that: A positioning groove (16) is provided at one end of the skeleton (5) close to the second abutment block (14), and a positioning block (17) for plugging into the positioning groove (16) is provided in the assembly cavity (3).

9. A temperature sensing device according to claim 1, characterized in that: The outer surface of the first strong buckle block (6) is a curved surface.

10. A temperature sensing device according to claim 1, characterized in that: The sealing ring (9) is made of rubber material.

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