CN215865545U

CN215865545U - Waterproof temperature-detecting device

Info

Publication number: CN215865545U
Application number: CN202121670291.7U
Authority: CN
Inventors: 林祥生; 乐佳磊; 陆铁洪
Original assignee: Ningbo Zhike Electric Appliance Technology Co ltd
Current assignee: Ningbo Zhike Electric Appliance Technology Co ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-02-18
Anticipated expiration: 2031-07-21

Abstract

The utility model discloses a waterproof temperature detection device which comprises a main machine seat, an NTC seat and an NTC assembly, wherein the NTC seat is fixed in the main machine seat, the upper end of the main machine seat is provided with a fixing column, the fixing column is provided with a through hole which is communicated up and down, the NTC assembly comprises an NTC cap and an NTC shell, the NTC shell can move up and down, the NTC shell penetrates through the through hole in an extending mode, the NTC cap is fixed at the upper end of the NTC shell, a thermistor is arranged in the NTC shell, the outer side of the NTC cap is provided with a flanging which is blocked outside the fixing column, a spring which extends up and down is arranged between the lower end of the NTC assembly and the NTC seat, and a clamping ring is arranged on the outer wall of the NTC shell and is blocked on the inner wall of the main machine seat. The utility model has simple structure and reduces the cost; the installation is simple, and the manufacturing, assembly and after-sale maintenance cost is reduced; the flanging at the outer side of the NTC cap can prevent liquid food from entering the machine to a certain extent; the snap ring is used for limiting the moving position of the NTC assembly, and the structure is simple and reliable.

Description

Waterproof temperature-detecting device

Technical Field

The utility model relates to a temperature detection device, in particular to a waterproof temperature detection device.

Background

Along with the improvement of the living standard of people, the requirements of people on household appliances are not only the performance of products, but also high in the safety requirements of the products, for example, a temperature detection device is usually installed on a host machine of a common electric cooker, a heating wall breaking machine, a cooking machine and the like, so that the temperature of food can be monitored at any time. People sometimes can carelessly spill soup or other liquid foods on the main machine, if the temperature detection device arranged on the main machine has poor sealing performance, liquid is easy to enter the machine, and thus safety accidents such as electric leakage and the like are caused.

Although the existing machine on the market has good tightness, the structural design is complex, the cost of the whole product is high due to too many installed parts, and the after-sale maintenance trouble also indirectly increases the cost of the product. Because the limitation of temperature-detecting device manufacturing, cost and anti-interference consideration, the material of temperature-detecting device's shell all is the plastic material, and in addition whole temperature-detecting device is direct to expose in the host computer outside, the user breaks temperature-detecting device's shell very easily when scrubbing the machine and leads to whole machine unable work. Or the temperature detection device cannot be installed on the host machine due to the influence of the appearance structure of the product, and the machine experience is poor and the reliability of the product is low due to other installation modes.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks of the prior art, the present invention aims to: a waterproof temperature detection device is provided.

The technical solution of the utility model is as follows: the utility model provides a waterproof temperature-detecting device, including the host computer seat, NTC seat and NTC subassembly, the NTC seat is fixed in the host computer seat, the upper end of host computer seat has the fixed column, the fixed column has the through-hole that link up from top to bottom, the NTC subassembly is including NTC cap and the NTC shell that can reciprocate, the NTC shell passes the through-hole with extending from top to bottom, the NTC cap is fixed in NTC shell upper end, thermistor is equipped with in the NTC shell, the outside of NTC cap has the turn-ups of keeping off outside the fixed column, install the spring that extends from top to bottom between NTC subassembly lower extreme and the NTC seat, install the snap ring on the outer wall of NTC shell, the snap ring keeps off on the host computer seat inner wall.

Further, the NTC housing is clearance-fitted with the through hole.

Further, the spring is clamped between the NTC seat and the thermistor.

Further, a boss is arranged in the lower end of the NTC seat, the lower end of the spring is sleeved on the boss, and the upper end of the spring extends into the NTC shell and abuts against the bottom of the thermistor.

Furthermore, the outer wall of the lower end of the NTC shell is provided with a clamping groove which is annular and is used for clamping the clamping ring.

Further, the outer diameter of the clamping ring is larger than the inner diameter of the through hole.

Further, the middle of the NTC seat is provided with a central hole which is penetrated up and down.

The waterproof temperature detection device provided by the utility model has the beneficial effects that:

the structure is simple, and the cost is reduced; the installation is simple, and the manufacturing, assembly and after-sale maintenance cost is reduced;

the flanging at the outer side of the NTC cap can prevent liquid food from entering the machine to a certain extent;

the snap ring is used for limiting the moving position of the NTC assembly, and the structure is simple and reliable.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic structural diagram of an NTC assembly according to the present invention;

FIG. 4 is a schematic structural view of the NTC assembly of the present invention after being mounted with a snap ring;

fig. 5 is a schematic structural view of an NTC cap of the present invention;

FIG. 6 is a schematic cross-sectional view of the present invention;

fig. 7 is an enlarged schematic view of region a in fig. 6.

Shown in the figure: the device comprises a main machine base, 11 fixing columns, 111 through holes, 2 NTC bases, 21 bosses, 22 center holes, 3 NTC components, 31 NTC caps, 311 flanges, 32 NTC shells, 321 clamping grooves, 33 thermistors, 4 springs and 5 clamping rings.

Detailed Description

For a more intuitive and complete understanding of the technical solution of the present invention, the following non-limiting features are described in conjunction with the accompanying drawings of the present invention:

as shown in fig. 1 to 7, a waterproof temperature detecting device includes a main housing 1, an NTC base 2 and an NTC assembly 3, the NTC base 2 is fixed in the main housing 1 by means of a screw connection, a fixing post 11 is provided at an upper end of the main housing 1, the fixing post 11 has a through hole 111 penetrating up and down, the NTC assembly 3 includes an NTC cap 31 and an NTC housing 32 capable of moving up and down, the NTC housing 32 passes through the through hole 111 while extending up and down, the NTC cap 31 is fixed at an upper end of the NTC housing 32, a thermistor 33 is provided in the NTC housing 32, a flange 311 blocking outside the fixing post 11 is provided at an outer side of the NTC cap 31, an inner side of the flange 311 is in clearance fit with an outer side of the fixing post 11, a spring 4 extending up and down is provided between a lower end of the NTC assembly 3 and the NTC base 2, a clamp ring 5 is provided on an outer wall of the NTC housing 32, and the clamp ring 5 blocks on an inner wall of the main housing 1.

Liquid food is required to enter the interior of the machine from the through hole 111 of the fixing post 11 at the upper end of the main chassis 1, and the liquid food is prevented from entering the interior of the machine to some extent because the turned-over edge 311 of the NTC cap 31 is stopped outside the fixing post 11. Specifically, when the liquid food drips from top to bottom, the upper end surface and the side surface of the NTC cap 31 can block the liquid food, even in the worst case, the liquid food drips on the main chassis 1 and then splashes on the NTC assembly 3, and the liquid food is not easy to enter the machine because the gap between the inner side surface of the NTC cap 31 and the fixed column 11 is small.

The NTC housing 32 of the NTC assembly 3 is fitted into the through hole 111 of the fixing post 11, which corresponds to the fixing post 11 to protect the NTC assembly 3 from being easily broken.

As shown in fig. 7, the NTC housing 32 is in clearance fit with the through hole 111, so that the NTC housing 32 can move up and down, the gap between the NTC housing 32 and the through hole 111 is small, and liquid food does not enter the machine in a large amount and is not easy to enter the machine.

As shown in fig. 7, the spring 4 is caught between the NTC holder 2 and the thermistor 33. In order to firmly mount the spring 4, the lower end of the NTC base 2 has a boss 21 therein, the lower end of the spring 4 is fitted over the boss 21, and the upper end of the spring 4 is inserted into the NTC housing 32 and abuts against the bottom of the thermistor 33. When the NTC assembly 3 is moved downwards, the spring 4 is compressed.

As shown in fig. 3 and 4, in order to facilitate installation of the snap ring 5, the NTC housing 32 has a snap groove 321 on an outer wall of a lower end thereof, the snap ring 5 being in a ring shape.

As shown in fig. 7, the outer diameter of the snap ring 5 is larger than the inner diameter of the through hole 111, and the snap ring 5 plays a role in positioning and limiting the moving position of the NTC assembly 3, and has a simple and reliable structure.

As shown in fig. 7, the NTC holder 2 has a central hole 22 formed therethrough up and down in the middle thereof to facilitate the passage of signal lines and socket terminals of the NTC assembly 3.

It should be understood that the above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and that the present invention is not limited by the above description and drawings.

Claims

1. A waterproof temperature-detecting device, its characterized in that: including the host computer seat, NTC seat and NTC subassembly, the NTC seat is fixed in the host computer seat, the upper end of host computer seat has the fixed column, the fixed column has the through-hole that link up from top to bottom, the NTC subassembly is including NTC cap and the NTC shell that can reciprocate, the NTC shell passes the through-hole with extending from top to bottom, the NTC cap is fixed in the NTC shell upper end, thermistor is equipped with in the NTC shell, the outside of NTC cap has the turn-ups of keeping off outside the fixed column, install the spring that extends from top to bottom between NTC subassembly lower extreme and the NTC seat, install the snap ring on the outer wall of NTC shell, the snap ring keeps off on the host computer seat inner wall.

2. A waterproof temperature detection device according to claim 1, wherein: the NTC shell is in clearance fit with the through hole.

3. A waterproof temperature detection device according to claim 1, wherein: the spring is clamped between the NTC seat and the thermistor.

4. A waterproof temperature detection device according to claim 3, wherein: the lower extreme of NTC seat has the boss in, and the lower pot head of spring is on the boss, and the upper end of spring stretches into in the NTC shell and supports and lean on in the thermistor bottom.

5. A waterproof temperature detection device according to claim 1, wherein: the NTC shell has the draw-in groove that is the annular and supplies the snap ring card to go into on the lower extreme outer wall.

6. A waterproof temperature detection device according to claim 5, wherein: the outer diameter of the clamping ring is larger than the inner diameter of the through hole.

7. A waterproof temperature detection device according to claim 1, wherein: and the middle of the NTC seat is provided with a central hole which is vertically communicated.