CN209747407U

CN209747407U - Thermal-fusing safety protection device

Info

Publication number: CN209747407U
Application number: CN201920881732.4U
Authority: CN
Inventors: 方国洪; 马灯亮; 楼迪科
Original assignee: Zhejiang Yueli Electrical Appliances Co Ltd
Current assignee: Yueli Group Co.,Ltd.
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2019-12-06
Anticipated expiration: 2029-06-12

Abstract

The utility model relates to a fixed technical field of thermal protection, concretely relates to thermal fuse safety arrangement, a thermal fuse safety arrangement, including casing, sleeve pipe and hot protector, heating element has set firmly in the casing, the sleeve pipe cover is established outside hot protector, set firmly a plurality of spacing fender muscle that are used for at the spacing sheathed tube of horizontal direction on the casing outer wall, the sleeve pipe card is established on spacing fender muscle, and the sleeve pipe overcoat is equipped with the clamping ring that sets firmly on the casing, and the equal electricity in both ends of hot protector is connected with the wire, and hot protector passes through the wire and establishes ties with heating element. The utility model has the advantages of be convenient for accurate installation.

Description

Thermal-fusing safety protection device

Technical Field

The utility model relates to a fixed technical field of thermal protection, concretely relates to hot melt safety arrangement.

Background

The thermal protector is a device which is installed on a shell of a heating element, cuts off a circuit when the temperature of the heating element is overhigh by utilizing the thermal effect principle of current, and provides overload protection for the heating element.

The sleeve of the traditional thermal protector is made of transparent or opaque insulating materials. The transparent material realizes visualization on installation, so that the thermal protector is easily installed at a set safety position. Since the cost of the transparent insulating sleeve is much higher than that of the opaque insulating sleeve, manufacturers often select the opaque insulating sleeve in order to reduce the cost and improve the product competitiveness. However, the opaque heat protection sleeve is installed in a blind mode and is prone to deviation, so that the opaque heat protection sleeve cannot play a role in safety protection, and certain installation risks exist.

Therefore, there is an urgent need for a thermal protector that is easy to install accurately.

Disclosure of Invention

The utility model provides a hot melt safety arrangement to solve the difficult problem of installing of hot protector among the prior art.

In order to achieve the purpose, the utility model discloses a basic scheme as follows, a hot melt-off safety arrangement, including casing, sleeve pipe and hot protector, heating element has set firmly in the casing, the cover pipe box is established outside hot protector, set firmly a plurality of spacing fender muscle that are used for at the spacing sheathed tube of horizontal direction on the casing outer wall, the casing pipe card is established on spacing fender muscle, and the casing pipe overcoat is equipped with the clamping ring that sets firmly on the casing, and the equal electricity in both ends of hot protector is connected with the wire, and hot protector passes through the wire and establishes ties with heating element.

the technical principle of the scheme is as follows: the sleeve pipe cover is established outside hot protector, with the endotheca have the sleeve pipe card of hot protector locate between the spacing fender muscle, spacing fender muscle with it in the horizontal direction spacing, the clamping ring is pushed down the sleeve pipe and is spacing with it in vertical direction, has just so guaranteed that the installation of hot protector targets in place. When the thermal protector senses that the temperature of the heating element is too high, the thermal protector is disconnected, so that the circuit where the heating element is located is disconnected, and the heating element is prevented from being burnt out due to the fact that the temperature is too high.

Compared with the prior art, the technical scheme has the advantages that: 1. the sleeve is limited in the horizontal direction through the limiting blocking ribs, and the sleeve is limited in the vertical direction through the pressing ring, so that the sleeve is ensured to be fixed in the vertical direction and the horizontal direction; 2. the thermal protector sleeved with the sleeve can be fixed by fixedly arranging the limiting blocking rib and the pressing ring on the shell, and the thermal protector is simple to install and convenient to operate.

Furthermore, the number of the limiting blocking ribs is at least two, and the limiting blocking ribs are respectively arranged on two axial sides of the sleeve. The limiting blocking ribs are respectively arranged on two sides of the axial direction of the sleeve, so that the limiting in the horizontal direction of the sleeve is ensured.

furthermore, the limiting blocking rib is a cylindrical body. The cylinder shape is convenient for better must carry out ascending fixed of horizontal direction to the sleeve pipe, prevents that the sleeve pipe from deviating from spacing fender muscle.

Further, the inner diameter of the pressure ring is larger than or equal to the outer diameter of the sleeve. So that the pressure ring can better fix the sleeve in the vertical direction.

Further, the thermal protector is a PTC thermal protector or a thermal fuse. The PTC thermal protector and the thermal fuse link can cut off current in time when an electric appliance circuit is overloaded, and the power utilization safety of the electric appliance is ensured.

Further, the compression ring is a silicon rubber ring. The silicon rubber ring is high temperature resistant and elastic, can adapt to sleeves with different diameters, avoids the trouble that the pressure ring needs to be manufactured in a matched manner with the sleeves, and reduces the manufacturing cost of the pressure ring.

Furthermore, the diameter of the cross section of the limiting blocking rib is gradually increased from top to bottom. The section diameter is set up by the shape of upper to lower crescent for there is the adjustment space of different footpath values when the casing clamp is established on spacing fender muscle, makes the fault-tolerant rate of installation higher, and spacing fender muscle is higher with sheathed tube adaptation degree.

Drawings

Fig. 1 is a schematic structural view of a thermal fuse safety protection device according to an embodiment of the present invention;

Fig. 2 is a schematic structural view of a sleeve and a lead in a thermal fuse safety protection device according to an embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

Reference numerals in the drawings of the specification include: the thermal fuse comprises a thermal fuse body 1, a sleeve 2, a silicon rubber pressure ring 3, a lead 4, a shell 5 and a limiting blocking rib 6.

The embodiments are substantially as shown in figures 1 to 2 of the accompanying drawings: the utility model provides a thermal fuse safety arrangement, which comprises a housin 5, sleeve pipe 2 and thermal link 1, the PTC heat-generating body has set firmly in the casing 5, the sleeve pipe 2 cover is established outside the thermal link 1, four spacing fender muscle 6 have set firmly on the casing 5, spacing fender muscle 6 is the columnar body of section diameter by last crescent under to, two liang of spacing fender muscle 6 are a set of, a set of spacing fender muscle 6 divides to arrange in 2 axial both sides of sleeve pipe, 2 overcoat of sleeve pipe is equipped with a silicon rubber clamping ring 3, silicon rubber clamping ring 3 sets firmly on casing 5 through the screw, silicon rubber clamping ring 3 is located between two sets of spacing fender muscle 6, the equal electricity in both ends of thermal link 1 is connected with wire 4, thermal link 1 establishes ties through wire 4 and PTC heat-generating body place circuit.

The specific implementation process is as follows: firstly, the sleeve 2 is sleeved outside the thermal fuse-link 1, the sleeve 2 sleeved with the thermal fuse-link 1 is clamped between four limit stop ribs 6, the four limit stop ribs 6 limit the sleeve in the horizontal direction, the silicon rubber pressure ring 3 is fixedly arranged on the electrical appliance shell 5 through screws, and the sleeve 2 is pressed to limit the sleeve in the vertical direction, so that the thermal fuse-link 1 is ensured to be installed in place. When the thermal fuse 1 senses that the temperature of the PTC heating element is too high, the thermal fuse 1 is disconnected, so that the circuit where the PTC heating element is located is disconnected, and the PTC heating element is prevented from being burnt out due to the too high temperature.

The above description is only an example of the present invention, and general knowledge such as specific technical solutions known in the art is not described herein too much. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a hot fuse safety arrangement, includes the casing, sleeve pipe and hot protector, set firmly heating element in the casing, the sleeve pipe cover is established outside hot protector, its characterized in that: the casing outer wall sets firmly a plurality of spacing fender muscle that are used for at the spacing sheathed tube of horizontal direction, and the casing card is established on spacing fender muscle, and the sleeve pipe overcoat is equipped with the clamping ring that sets firmly on the casing, and the equal electricity in both ends of hot protector is connected with the wire, and hot protector passes through the wire and establishes ties with heating element.

2. A thermal fuse safety shield apparatus as recited in claim 1, further comprising: the number of the limiting blocking ribs is at least two, and the limiting blocking ribs are respectively arranged on two axial sides of the sleeve.

3. A thermal fuse safety shield apparatus as recited in claim 1, further comprising: the limiting blocking rib is a cylindrical body.

4. A thermal fuse safety shield apparatus as recited in claim 1, further comprising: the inner diameter of the pressure ring is larger than or equal to the outer diameter of the sleeve.

5. A thermal fuse safety shield apparatus as recited in claim 1, further comprising: the thermal protector is a PTC thermal protector or a thermal fuse.

6. A thermal fuse safety shield apparatus as recited in claim 4, further comprising: the compression ring is a silicon rubber ring.

7. A thermal fuse safety shield apparatus as recited in claim 3, further comprising: the diameter of the cross section of the limiting blocking rib is gradually increased from top to bottom.