Leadless threaded NTC temperature sensor

Abstract

The utility model discloses a lead-free threaded NTC temperature sensor, which comprises a shell and a temperature sensing chip arranged in the inner ring of the shell, one side of the shell is provided with a monaural plug, and the monaural plug is connected with a monaural socket in a pluggable manner; the temperature sensor further comprises a protection pipe sleeve and a wiring terminal, the wiring terminal and the temperature sensing chip are arranged at the two ends of the interior of the shell respectively, the monaural plug is connected with the wiring terminal, and the shell is filled with epoxy resin. Two groups of chip pins are led out of the temperature sensing chip, a protective tube sleeve is arranged outside one group of chip pins in a penetrating manner and is connected with a wiring terminal, and the other group of chip pins is connected with a monaural plug. The utility model belongs to the technical field of temperature sensors, and particularly provides a leadless threaded NTC temperature sensor which is convenient to disassemble and assemble, reduces fault risks and improves maintenance efficiency.

Description

TECHNICAL FIELD

[0001] The utility model belongs to temperature sensor technical field, specifically point to a kind of leadless threaded NTC temperature sensor. BACKGROUND

[0002] Coffee machine water temperature is generally set at 90-95 ℃, and the taste of the coffee is the best. The coffee machine continues constant temperature at fixed temperature, and cannot be separated from the temperature sensor temperature control function. The coffee machine generally uses NTC temperature sensor, which is installed at the water outlet and water inlet position of the coffee machine, for monitoring the temperature of the water outlet and water inlet.

[0003] In order to facilitate health, the coffee machine inner disc is basically disassembled and cleaned, and the temperature sensor used on most of the existing coffee machines basically has a lead, which is difficult to remove. At the same time, the temperature sensor with lead also has the problems of lead breakage and poor contact. When installing and replacing, complex lead connection needs to be considered, resulting in low maintenance efficiency. INVENTION CONTENTS

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a leadless threaded NTC temperature sensor which is convenient to disassemble, reduces the risk of failure and improves the maintenance efficiency.

[0005] The technical scheme adopted by the present application is as follows:

[0006] The present application provides a leadless threaded NTC temperature sensor, which comprises a shell and a temperature sensing chip arranged in the shell. One side of the shell is provided with a single-channel plug, which can be plugged into a single-channel socket.

[0007] It also includes a protective sleeve and a terminal, and the terminal and the temperature sensing chip are arranged at both ends of the shell, respectively. The single-channel plug is connected to the terminal, and the shell is filled with epoxy resin.

[0008] The temperature sensing chip has two groups of chip pins. One group of chip pins is provided with a protective sleeve outside and connected to the terminal, and the other group of chip pins is connected to the single-channel plug.

[0009] Preferably, the shell is made of stainless steel, and the shell is externally threaded with a standard fixed thread. The outer thread of the shell is provided with a hexagonal nut.

[0010] Preferably, the side of the shell away from the single-channel plug is provided with a limiting piece, and a sealing ring is arranged between the limiting piece and the external thread.

[0011] Further, the protective sleeve is a heat shrinkable sleeve.

[0012] As one option, the housing is planar on one side relative to the limiting member, and the temperature sensing chip is attached to the limiting member.

[0013] As an alternative, the housing extends outward from one side of the limiting member and is provided with a spherical cylindrical contact, and the temperature sensing chip is disposed in contact with the inner wall of the contact.

[0014] The beneficial effects of this utility model by adopting the above structure are as follows:

[0015] This solution uses a plug-in connection, eliminating the need for lead wires, facilitating disassembly, effectively mitigating the fault risks associated with lead wires, and improving maintenance efficiency. Attached Figure Description

[0016] Figure 1 A schematic diagram of the internal structure of a leadless threaded NTC temperature sensor provided for this solution;

[0017] Figure 2 for Figure 1 External structure diagram;

[0018] Figure 3 An internal diagram illustrating the connection status of the mono plug and mono socket provided in this solution;

[0019] Figure 4 for Figure 3 External structure diagram;

[0020] Figure 5 Another structural schematic diagram of the shell provided for this solution.

[0021] The meanings of the labels in the attached diagram are as follows:

[0022] 1. Temperature sensing chip, 2. Housing, 3. Protective sleeve, 4. Wiring terminal, 5. Epoxy resin, 6. Chip pin, 7. Mono plug, 8. Mono socket, 9. Hex nut, 10. Limiting component, 11. Sealing ring, 12. Contact. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Example 1

[0025] Please refer to Figure 1As shown, the embodiment provides a leadless threaded NTC temperature sensor, which comprises a shell 2 and an NTC temperature sensing chip 1 arranged in the shell 2, one side of the shell 2 is provided with a single-channel plug 7, further comprising a protective sleeve 3 and a wiring terminal 4, the wiring terminal 4 and the temperature sensing chip 1 are respectively arranged at both ends inside the shell 2, the single-channel plug 7 is connected with the wiring terminal 4, and the shell 2 is filled with epoxy resin 5.

[0026] Among them, the temperature sensing chip 1 leads out two groups of chip pins, one group of chip pins is externally provided with a protective sleeve 3 and connected with a wiring terminal 4, and the other group of chip pins is connected with a single-channel plug 7.

[0027] Reference Figure 2 As shown, the shell 2 is externally processed with external threads, which is a standard fixed thread, a hex nut 9 is threadedly connected at the external threads of the shell 2, a limiting piece 10 is arranged on the side of the shell 2 away from the single-channel plug 7, and a sealing ring 11 is arranged between the limiting piece 10 and the external threads.

[0028] Further description, the protective sleeve 3 adopts a heat shrinkable sleeve, and the shell 2 is made of stainless steel material.

[0029] Embodiment 2

[0030] Reference Figure 5 As shown, the shell 2 is externally processed with external threads, which is a standard fixed thread, a hex nut 9 is threadedly connected at the external threads of the shell 2, a limiting piece 10 is arranged on the side of the shell 2 away from the single-channel plug 7, and a sealing ring 11 is arranged between the limiting piece 10 and the external threads.

[0031] Reference Figure 1 As shown, as an embodiment, the shell 2 is arranged in a planar shape on one side of the limiting piece 10, and the temperature sensing chip 1 is arranged in close contact with the limiting piece 10.

[0032] The limiting pieces 10 of the above two shapes can be used according to requirements.

[0033] Embodiment 3

[0034] Reference Figure 3 And Figure 4 As shown, the structure can be plugged and connected with a single-channel socket 8 through the single-channel plug 7, and the single-channel socket 8 is internally provided with a spring for fixing the single-channel plug 7, so as to achieve the purpose of facilitating disassembly after plugging and unplugging.

[0035] As a further description, the design of the product can also simplify the production process. The existing production process of the NTC temperature sensor is complex and has many processes, including but not limited to: cutting wire, tin dipping, welding, encapsulation, pouring, sleeve, terminal crimping, assembling rubber seat, etc. Through the arrangement of the structure, the original cutting wire, tin dipping and other processes can be simplified, and only sleeve, encapsulation, welding and pouring operations are required.

[0036] It should be noted that, although the embodiments of the utility model have been shown and described, for those skilled in the art, similar structural modes and embodiments to the technical scheme can be designed without departing from the creative purpose of the utility model, and all should belong to the protection scope of the utility model.

Claims

1. A leadless threaded NTC temperature sensor, comprising a housing (2) and a temperature sensing chip (1) arranged in the housing (2), one side of the housing (2) is provided with a single-channel plug (7), a single-channel socket (8) can be connected through plugging the single-channel plug (7), characterized in that: It also includes protective tube (3) and terminal (4), the terminal (4) and temperature chip (1) are respectively arranged at both ends inside the shell (2), the single sound plug (7) is connected with terminal (4), the shell (2) is filled with epoxy resin (5);The temperature chip (1) leads out two groups of chip pins (6), one group of chip pins (6) is externally worn with protective tube (3) and is connected with terminal (4), another group of chip pins (6) is connected with single sound plug (7).

2. A leadless threaded NTC temperature sensor according to claim 1, characterized in that: The shell (2) is made of stainless steel material, the shell (2) is externally processed with external thread, the hexagon nut (9) is threadedly connected at the external thread of the shell (2).

3. A leadless threaded NTC temperature sensor according to claim 2, characterized in that: The side of the shell (2) away from the single sound plug (7) is provided with a limiting piece (10), and a sealing ring (11) is arranged between the limiting piece (10) and the external thread.

4. A leadless threaded NTC temperature sensor according to claim 3, characterized in that: The side of the shell (2) about the limiting piece (10) is provided with a plane, and the temperature chip (1) is arranged in close contact with the limiting piece (10).

5. A leadless threaded NTC temperature sensor according to claim 3, characterized in that: The side of the shell (2) about the limiting piece (10) is provided with a spherical cylindrical contact (12) extending outward, and the temperature chip (1) is arranged in close contact with the inner wall of the contact (12).

6. A leadless threaded NTC temperature sensor according to claim 1, characterized in that: The protective tube (3) is made of heat shrinkable sleeve.

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