CN210602245U

CN210602245U - PTC fixes subassembly

Info

Publication number: CN210602245U
Application number: CN201921540647.8U
Authority: CN
Inventors: 张辉; 王永麟; 曾本发; 姚松良
Original assignee: Zhejiang Laisiao Electric Co ltd
Current assignee: Leso integrated home Co.,Ltd.
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-05-22
Anticipated expiration: 2029-09-17

Abstract

A PTC fitting assembly, comprising: the PTC heater comprises a PTC bracket and a PTC fixing pressure plate, wherein the PTC bracket is of a box-shaped structure with an opening at one end, the side wall of the PTC bracket is provided with a clamping piece, the clamping piece is matched and clamped with a clamping groove preset at the outlet of a warm air duct, the front side surface and the rear side surface of the PTC bracket are of grid structures, each side wall of the grid and the PTC bracket extends into the PTC bracket to form a spacing surface, one end of the front side surface extends outwards to form a section of fixing surface, a PTC heating plate is inserted into the PTC bracket, and an electrode of the PTC; the PTC fixing plate is provided with fixing grooves corresponding to the PTC heating plate electrodes one by one, the PTC heating plate electrodes are inserted into the fixing grooves, and the PTC fixing plate is fixed with the fixing surface to firmly fix the PTC heating plate. Simple structure makes things convenient for the dismouting of PTC hot plate, and can not influence the heat exchange of PTC hot plate.

Description

PTC fixes subassembly

Technical Field

The utility model relates to a fixed subassembly especially relates to a fixed subassembly of PTC.

Background

The PTC heater is also called as PTC heater, and is composed of PTC ceramic heating element and aluminum tube. The PTC heater has the advantages of small thermal resistance and high heat exchange efficiency, and is an automatic constant-temperature and electricity-saving electric heater, so that the PTC heater is adopted in heating devices in various air heaters.

The commonly used PTC heating element in the heater is a PTC heating plate, generally fixed at a heater port, but has no uniform fixing form, generally only simple screw connection, and the fixing form is not firm.

Disclosure of Invention

In order to solve the above problems, the present invention provides the following solutions:

a PTC fixing assembly comprises a PTC support and a PTC fixing pressing plate, wherein the PTC support is of a box-shaped structure with an opening at one end, clamping pieces are arranged on the side walls of the PTC support, the clamping pieces are matched and clamped with clamping grooves preset at an outlet of a warm air duct, the front side surface and the rear side surface of the PTC support are of grid structures, each side wall of the grid and the PTC support extends into the PTC support to form a spacing surface, one end of the front side surface extends outwards to form a section of fixing surface, a PTC heating plate is inserted into the PTC support, and an electrode of the PTC heating plate is positioned on the rear; the PTC fixing plate is provided with fixing grooves corresponding to the PTC heating plate electrodes one by one, the PTC heating plate electrodes are inserted into the fixing grooves, and the PTC fixing plate is fixed with the fixing surface to firmly fix the PTC heating plate.

Furthermore, the top surface of the PTC support is provided with a disposable fuse link electrically connected with the PTC heating plate and a resettable temperature control knob.

Furthermore, the clamping piece is a clamping surface which extends outwards from each side surface of the PTC support, the clamping surface is inserted into a clamping groove preset in the warm air duct to complete connection, and a bolt is added for fastening.

The invention has the beneficial effects that:

the front side and the rear side of the PTC support are of a grid structure, the contact area of the PTC heating plate and air is ensured to be large enough, meanwhile, the grid and the side wall of the PTC support are internally provided with a spacing surface, the contact area of the PTC heating plate and the PTC support is reduced, and the heat transmitted from the PTC heating plate to the PTC support is reduced.

2. Simple structure, it is fixed firm, easy dismounting.

3. The controllable reset knob can control the PTC heating plate to be electrified or not to control the temperature, and meanwhile, the disposable fusible body is arranged, so that the power supply of the PTC heating plate is directly and thoroughly cut off when the PTC heating plate exceeds the safe temperature, and the accident caused by overheating is prevented.

Drawings

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

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is an exploded view of the present invention.

A PTC bracket; 2. a grid; 3. a clamping surface; 4. a spacing surface; 5, PTC heating plate; 6, PTC fixing plate; 7. a disposable fuse link; 8. a resettable temperature control knob; 9. a fixed surface; 10 fixing the groove.

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings:

example 1: as shown in figures 1-3 of the drawings,

a PTC fixing component comprises a PTC bracket 1 and a PTC fixing pressure plate 6, wherein the PTC bracket 1 is of a box-shaped structure with an opening at one end, a clamping surface 3 extends outwards from the side wall of the PTC bracket, and the clamping surface 3 is matched and clamped with a clamping groove preset at the outlet of a hot air duct and is fastened by bolts; the front side and the rear side of the PTC support 1 are of a grid structure, the side walls of the grid 2 and the PTC support 1 extend into the PTC support 1 to form a spacing surface 4, one end of the front side extends outwards to form a section of fixing surface 9, the PTC heating plate 5 is inserted into the PTC support 1, and an electrode of the PTC heating plate 5 is positioned on the rear side of the fixing surface 9; the PTC fixing plate 6 is provided with fixing grooves 10 corresponding to the electrodes of the PTC heating plate 5 one by one, the electrodes of the PTC heating plate 5 are inserted into the fixing grooves 10, and the PTC fixing plate 6 is fixed with the fixing surfaces 10 to firmly fix the PTC heating plate 5. The top surface of the PTC bracket 1 is provided with a disposable fuse link 7 which is electrically connected with the PTC heating plate 5 and a resettable temperature control knob 8.

The front side and the rear side of the PTC support 1 adopt a grid structure, so that the contact area between the PTC heating plate 5 and air is ensured to be large enough, meanwhile, the side walls of the grid 2 and the PTC support 1 are internally provided with a spacing surface 4, the contact area between the PTC heating plate 5 and the PTC support 1 is reduced, and the heat transmitted from the PTC heating plate 5 to the PTC support 1 is reduced. Simple structure, it is fixed firm, easy dismounting. The disposable fuse link 7 and the resettable temperature control knob 8 are arranged, when the temperature of the PTC heating plate 5 reaches the set highest temperature, the resettable temperature control knob 8 rotates to cut off the power supply of the PTC heating plate 5, so that the PTC heating plate 5 is not heated continuously, and when the temperature reaches the set lowest temperature, the resettable temperature control knob 8 rotates to turn around, and the power supply of the PTC heating plate 5 is started, so that the PTC heating plate 5 is heated and heated; if the resettable temperature control knob 8 fails, the one-time fuse link 7 will be fused when the PTC heating plate 5 is continuously heated to a temperature higher than the set maximum temperature, so that the power supply of the PTC heating plate 5 is completely cut off, the continuous heating of the PTC heating plate 5 is prevented, and various unsafe conditions caused by overheating are avoided.

Claims

1. A PTC fitting assembly, comprising: the PTC heater comprises a PTC bracket and a PTC fixing pressure plate, wherein the PTC bracket is of a box-shaped structure with an opening at one end, the side wall of the PTC bracket is provided with a clamping piece, the clamping piece is matched and clamped with a clamping groove preset at the outlet of a warm air duct, the front side surface and the rear side surface of the PTC bracket are of grid structures, each side wall of the grid and the PTC bracket extends into the PTC bracket to form a spacing surface, one end of the front side surface extends outwards to form a section of fixing surface, a PTC heating plate is inserted into the PTC bracket, and an electrode of the PTC; the PTC fixing plate is provided with fixing grooves corresponding to the PTC heating plate electrodes one by one, the PTC heating plate electrodes are inserted into the fixing grooves, and the PTC fixing plate is fixed with the fixing surface to firmly fix the PTC heating plate.

2. A PTC fitting assembly according to claim 1, wherein the top surface of the PTC holder is provided with a disposable fuse body electrically connected to the PTC heating plate and a temperature control knob which can be reset.

3. A PTC fitting assembly according to claim 1, wherein: the clamping piece is a clamping surface which extends outwards from each side surface of the PTC support, the clamping surface is inserted into a clamping groove preset in the warm air duct to complete connection, and a bolt is added for fastening.