Temperature sensor with limiting structure

Abstract

The utility model relates to the technical field of temperature sensors, and discloses a temperature sensor with a limiting structure, which comprises a wire holder, a connecting plate, a sensor seat and a temperature sensing probe, a connector is assembled at the top of the temperature sensing probe, and a locking nut is connected at the external position of the side edge of a bayonet lock. According to the utility model, the side plates are fixed at the two sides of the sensor seat, the positioning rods are fixed at the bottoms of the side plates, the mounting groove is formed in the connecting seat, and the limiting columns are fixedly mounted at the two sides of the bottom end of the inner wall of the mounting groove, so that the connecting seat is assembled from the lower part during assembly; firstly, a positioning rod is inserted into a limiting column to be limited until a positioning groove, a first inserting hole and a second inserting hole are located on the same horizontal line, a clamping pin passes through the first inserting hole and the second inserting hole and reaches the interior of the positioning groove, and then matching is completed after a locking nut and the clamping pin are locked. In this way, the overall assembling and positioning capacity is well improved in the working process.

Description

Technical Field

[0001] This utility model relates to the field of temperature sensor technology, specifically a temperature sensor with a limiting structure. Background Technology

[0002] A temperature sensor is a device that can sense temperature and convert it into a usable output signal. It is the core component of temperature measuring instruments. According to the measurement method, temperature sensors can be divided into two main categories: contact type and non-contact type. Temperature sensors are used to accurately measure ambient temperature and are therefore widely used in many fields.

[0003] When a temperature sensor is damaged, it needs to be disassembled and the internal components repaired. After repair, it needs to be reassembled. If the positioning is not good during reassembly, the instability of the positioning after disassembly will affect the convenience of reassembly, and the temperature sensing effect may also be affected by the misalignment of the assembly. Utility Model Content

[0004] The purpose of this utility model is to provide a temperature sensor with a limiting structure to solve the problem mentioned in the background art that after maintenance, it needs to be reassembled. If the positioning is not good during reassembly, it is easy to affect the convenience of assembly due to unstable positioning after disassembly, and it is also easy to affect the temperature sensing effect due to assembly misalignment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a temperature sensor with a limiting structure, comprising a terminal block, a connecting plate, a sensor base, and a temperature sensing probe. A connector is mounted on the top of the temperature sensing probe, and a connecting base is mounted on the top of the connector. An installation groove is formed within the connecting base. Limiting posts are fixed on both sides of the bottom of the inner wall of the installation groove. Side plates are fixed on both sides of the sensor base, and a positioning rod is fixed at the bottom of the side plates. A first insertion hole is formed at the lower position of each limiting post, and a second insertion hole is formed at the bottom of the positioning rod. Positioning grooves are formed at the lower inner positions of both sides of the sensor base. A locking pin is inserted into the second insertion hole, and a locking nut is connected to the outer side of the locking pin.

[0006] As a further technical solution of this utility model, the side plates are symmetrically distributed about the central axis of the sensor base, and the positioning grooves are symmetrically distributed about the central axis of the sensor base.

[0007] As a further technical solution of this utility model, the locking pin passes through the first insertion hole and the second insertion hole to reach the position of the positioning groove, and an external thread is fixed on the outer side wall of one side of the locking pin, and a threaded connection is formed between the locking pin and the locking nut.

[0008] As a further technical solution of this utility model, the limiting posts are symmetrically distributed about the central axis of the connecting seat, and the inner diameter of the limiting posts is larger than the outer diameter of the positioning rod.

[0009] As a further technical solution of this utility model, a metal conductive sheet is assembled inside the temperature sensing probe, and a thermal element is assembled at a lower position inside the temperature sensing probe.

[0010] As a further technical solution of this utility model, the terminal block is equipped with a metal insert, the sensor base is equipped with a circuit board, and the top of the circuit board is equipped with an interface.

[0011] As a further technical solution of this utility model, a display panel is fixed at the front end of the terminal block, and sealing plates are installed at the four peripheral positions of the display panel at the front end of the terminal block.

[0012] As a further technical solution of this utility model, the sealing plate has an installation hole, the back end face of the sealing plate is fixed with an adhesive layer, and an elastic sealing block is bonded and fixed to the outer surface of the adhesive layer.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the temperature sensor with a limiting structure not only improves the assembly positioning capability, but also improves the observation convenience and edge waterproof capability of the temperature sensor.

[0014] (1) By fixing the side plate to both sides of the sensor base, a positioning rod is fixed at the bottom of the side plate, and an installation groove is formed in the connecting seat. The limiting post is installed and fixed on both sides of the bottom of the inner wall of the installation groove. When assembling, the connecting seat is assembled from below. First, the positioning rod is inserted into the inside of the limiting post for limiting until the positioning groove, the first insertion hole, and the second insertion hole are on the same horizontal line. Then, the locking pin is used for insertion. The locking pin passes through the first insertion hole and the second insertion hole and reaches the inside of the positioning groove. Then, the locking nut is used to lock the locking pin to complete the matching. In this way, the overall assembly positioning capability is improved in the working process.

[0015] (2) By assembling a metal plug inside the terminal block, the end of the metal plug is connected to the interface, and the temperature probe is equipped with a metal conductive sheet and a thermal element for temperature monitoring. After the display panel is fixed on the front end of the terminal block, the temperature data can be fed back to the display panel in advance for display, thus improving the overall ease of observation during operation.

[0016] (3) By sealing the edges of the sealing plate at the four sides of the display panel, the elastic sealing block is bonded and assembled using the adhesive layer. This allows the elastic sealing block to be pressed into the four narrow gaps of the display panel, thus achieving the purpose of isolating and preventing water from entering. The sealing plate has mounting holes, so the connection and assembly can be carried out at the mounting holes during assembly. Therefore, the overall edge waterproofing capability is improved during operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a front view structural diagram of the present utility model;

[0019] Figure 3 This is a partial front view cross-sectional structural diagram of the connector of this utility model;

[0020] Figure 4 This is a top view schematic diagram of the sealing plate structure of this utility model.

[0021] In the diagram: 1. Terminal block; 2. Metal insert; 3. Connecting plate; 4. Sensor mount; 5. Interface; 6. Connecting base; 7. Connector; 8. Thermistor; 9. Metal conductive sheet; 10. Temperature probe; 11. Circuit board; 12. Display panel; 13. Sealing plate; 14. Side plate; 15. Positioning rod; 16. Limiting post; 17. Positioning groove; 18. First mounting hole; 19. Second mounting hole; 20. Locking pin; 21. Locking nut; 22. Mounting groove; 23. Mounting hole; 24. Adhesive layer; 25. Elastic sealing block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4An embodiment of this utility model provides a temperature sensor with a limiting structure, including a terminal block 1, a connecting plate 3, a sensor base 4, and a temperature probe 10. A connector 7 is mounted on the top of the temperature probe 10, and a connecting seat 6 is mounted on the top of the connector 7. An installation groove 22 is formed in the connecting seat 6. Limiting posts 16 are fixed on both sides of the bottom of the inner wall of the installation groove 22. Side plates 14 are fixed on both sides of the sensor base 4. A positioning rod 15 is fixed at the bottom of the side plates 14. A first insertion hole 18 is opened at the lower position inside the limiting post 16. A second insertion hole 19 is opened at the bottom of the positioning rod 15. A positioning groove 17 is opened at the lower position inside both sides of the sensor base 4. A locking pin 20 is inserted into the second insertion hole 19. A locking nut 21 is connected to the outer side of the locking pin 20.

[0024] The side plates 14 are symmetrically distributed about the central axis of the sensor base 4, and the positioning grooves 17 are symmetrically distributed about the central axis of the sensor base 4.

[0025] The locking pin 20 passes through the first insertion hole 18 and the second insertion hole 19 to reach the position of the positioning groove 17. The outer side wall of one side of the locking pin 20 is fixed with an external thread, and the locking pin 20 and the locking nut 21 form a threaded connection.

[0026] The limiting posts 16 are symmetrically distributed about the central axis of the connecting seat 6, and the inner diameter of the limiting posts 16 is larger than the outer diameter of the positioning rod 15.

[0027] The temperature probe 10 is equipped with a metal conductive sheet 9, and a thermistor 8 is assembled at a lower position inside the temperature probe 10.

[0028] The terminal block 1 is equipped with a metal insert 2, the sensor base 4 is equipped with a circuit board 11, and the top of the circuit board 11 is equipped with an interface 5.

[0029] A display panel 12 is fixed to the front end of the connector 1, and sealing plates 13 are installed at the four periphery positions of the display panel 12 at the front end of the connector 1.

[0030] The sealing plate 13 has an installation hole 23 inside, and an adhesive layer 24 is fixed on the back end face of the sealing plate 13. An elastic sealing block 25 is bonded and fixed on the outer surface of the adhesive layer 24.

[0031] To further assemble the connecting seat 6 from below, first insert the positioning rod 15 into the inside of the limiting post 16 for limiting. After assembly, the positioning groove 17, the first insertion hole 18, and the second insertion hole 19 need to be on the same horizontal line.

[0032] The outer side of the locking pin 20 is further fixed with external threads, and is locked and fixed with the locking pin 20 by the locking nut 21.

[0033] Working principle: First, during assembly, the connecting seat 6 is assembled from below. The positioning rod 15 is first inserted into the limiting post 16 for positioning until the positioning groove 17, the first insertion hole 18, and the second insertion hole 19 are on the same horizontal line. Then, the locking pin 20 is inserted, passing through the first insertion hole 18 and the second insertion hole 19 and reaching the inside of the positioning groove 17. Finally, the locking nut 21 is used to lock the locking pin 20, completing the assembly. The sealing plate 13 is then sealed to the display panel. At the four sides of the display panel 12, the elastic sealing block 25 is bonded and assembled using the adhesive layer 24, so that the elastic sealing block 25 can be pressed into the four narrow gaps of the display panel 12. The metal insert 2 is assembled inside the terminal block 1, and the tail end of the metal insert 2 is wired to the position of the interface 5. The temperature probe 10 is equipped with a metal conductive sheet 9 and a thermistor 8 for temperature monitoring. After the display panel 12 is fixed at the front end of the terminal block 1, the temperature data can be fed back to the position of the display panel 12 for display.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A temperature sensor with a limiting structure, comprising a terminal block (1), a connecting plate (3), a sensor base (4), and a temperature sensing probe (10), characterized in that: The temperature probe (10) is equipped with a connector (7) at its top, and a connector (6) is equipped with a connector (7) at its top. A mounting groove (22) is formed in the connector (6). Limiting posts (16) are fixed on both sides of the bottom of the inner wall of the mounting groove (22). Side plates (14) are fixed on both sides of the sensor base (4). A positioning rod (15) is fixed at the bottom of the side plate (14). A first insertion hole (18) is opened at the lower position inside the limiting post (16). A second insertion hole (19) is opened at the bottom of the positioning rod (15). A positioning groove (17) is opened at the lower position inside both sides of the sensor base (4). A locking pin (20) is inserted into the second insertion hole (19). A locking nut (21) is connected to the outer side of the locking pin (20).

2. A temperature sensor with a limiting structure according to claim 1, characterized in that: The side plate (14) is symmetrically distributed about the central axis of the sensor base (4), and the positioning groove (17) is symmetrically distributed about the central axis of the sensor base (4).

3. A temperature sensor with a limiting structure according to claim 1, characterized in that: The locking pin (20) passes through the first insertion hole (18) and the second insertion hole (19) to reach the position of the positioning groove (17). The outer side wall of the locking pin (20) is fixed with an external thread, and the locking pin (20) and the locking nut (21) form a threaded connection.

4. A temperature sensor with a limiting structure according to claim 1, characterized in that: The limiting posts (16) are symmetrically distributed about the central axis of the connecting seat (6), and the inner diameter of the limiting posts (16) is larger than the outer diameter of the positioning rod (15).

5. A temperature sensor with a limiting structure according to claim 1, characterized in that: The temperature-sensing probe (10) is equipped with a metal conductive sheet (9), and a thermal element (8) is assembled at a lower position inside the temperature-sensing probe (10).

6. A temperature sensor with a limiting structure according to claim 1, characterized in that: The terminal block (1) is equipped with a metal insert (2), the sensor base (4) is equipped with a circuit board (11), and the top of the circuit board (11) is equipped with an interface (5).

7. A temperature sensor with a limiting structure according to claim 1, characterized in that: A display panel (12) is fixed at the front end of the connector (1), and a sealing plate (13) is installed at the four peripheral positions of the display panel (12) at the front end of the connector (1).

8. A temperature sensor with a limiting structure according to claim 7, characterized in that: The sealing plate (13) has an installation hole (23) inside, and an adhesive layer (24) is fixed on the back end face of the sealing plate (13). An elastic sealing block (25) is bonded and fixed on the outer surface of the adhesive layer (24).

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