Search

CN-224205266-U - Partitioned heating PTC heating rod and PTC heater

CN224205266UCN 224205266 UCN224205266 UCN 224205266UCN-224205266-U

Abstract

The utility model relates to the technical field of PTC heating, in particular to a partition heating PTC heating rod and a PTC heater, which comprise a heating structure, wherein the heating structure comprises a public end electrode plate, a first ceramic plate and a second ceramic plate are respectively arranged at two ends of the public end electrode plate, a plurality of heating partitions are formed between the first ceramic plate and the second ceramic plate through a plurality of third ceramic plates in a separated mode, each heating partition is provided with at least one PTC heating chip, and partition electrode plates are arranged above the PTC heating chips of each heating partition. According to the utility model, the PTC heating chip in the PTC heating rod is separated into a plurality of heating subareas through the ceramic plate, and each heating subarea is provided with the subarea electrode plate respectively to be matched with the public terminal electrode plate, so that the subarea heating function is realized, the structure is simple, the deformation is not easy, a plastic frame and a ceramic substrate are not needed, and the cost is low.

Inventors

  • SUN YU
  • ZHOU WEI
  • WAN WEIWEI
  • WANG WEI

Assignees

  • 孝感华工高理电子有限公司

Dates

Publication Date
20260505
Application Date
20250327

Claims (10)

  1. 1. The partitioned heating PTC heating rod comprises a heating structure and is characterized by comprising a public end electrode plate, wherein a first ceramic plate and a second ceramic plate are respectively arranged at two ends of the public end electrode plate, a plurality of heating partitions are formed between the first ceramic plate and the second ceramic plate through a plurality of third ceramic plates in a separated mode at intervals, at least one PTC heating chip is arranged in each heating partition, and partitioned electrode plates are arranged above the PTC heating chips in each heating partition.
  2. 2. A PTC heating rod as recited in claim 1, wherein the pins of the common terminal electrode pad and the pins of each of the partitioned electrode pads extend to the same side of the heating structure.
  3. 3. A PTC heating rod according to claim 1, wherein the widths of the PTC heating chips of the plurality of heating sections decrease in order in the direction from the first ceramic sheet to the second ceramic sheet.
  4. 4. A PTC heating rod as recited in claim 3, wherein one side of each of the other end portions of the divided electrode sheets except for the divided electrode sheet adjacent to the second ceramic sheet is bent downward to form a bent portion and connected to one end of a corresponding lead, and the other end of the lead extends from one side to the outside of the second ceramic sheet.
  5. 5. A PTC heating rod as recited in claim 4, wherein a side of the bending portion facing away from the corresponding pin is provided with a bent side slot.
  6. 6. A PTC heating rod as recited in claim 4, wherein a fourth ceramic plate is disposed on one side of the PTC heating chip of each of the other heating zones except for the heating zone adjacent to the first ceramic plate, and pin grooves for pins of the zone electrode plates to pass through are respectively disposed on top surfaces of the fourth ceramic plate, the third ceramic plate and the second ceramic plate.
  7. 7. A PTC heating rod according to claim 6 wherein the fourth ceramic sheet has a thickness between the thickness of the PTC heating chip and the sum of the thicknesses of the PTC heating chip and the partitioned electrode sheet.
  8. 8. A PTC heating rod as set forth in claim 1, wherein a positioning rubber plug is arranged on one side of the heating structure, a plurality of positioning holes are formed in the positioning rubber plug, and pins of the common terminal electrode plate and pins of the partitioned electrode plates extend out through different positioning holes.
  9. 9. A PTC heating rod as recited in claim 1, further comprising an aluminum tube and an insulating film, wherein the heating structure is coated with the insulating film and is mounted in the aluminum tube.
  10. 10. A PTC heater comprising at least one PTC heating rod as claimed in any one of claims 1 to 9.

Description

Partitioned heating PTC heating rod and PTC heater Technical Field The utility model relates to the technical field of PTC heating, in particular to a partition heating PTC heating rod and a PTC heater. Background The new energy vehicle type has the requirement of providing different heating values for the areas of main driving, auxiliary driving, rear row and the like corresponding to the air conditioner because of the requirement of saving energy. The existing PTC heating rod adopts an injection molding electrode plate to realize zonal heating, the electrode plate is injected into a plastic frame, a ceramic substrate is additionally arranged outside the electrode plate to ensure that no gap exists in a transmission path from a heating chip to the electrode plate to the ceramic substrate to an insulating film and to an aluminum pipe, so that the cost is high, the injection molding electrode plate is also required to be customized with injection molds for heaters with different sizes, the universality is poor, the ceramic substrate is only arranged on one side of the injection molding electrode plate, the heating chip, the common electrode plate and the ceramic substrate are arranged on the other side of the injection molding electrode plate, the thickness of plastics on two sides of the injection molding electrode plate is inconsistent, the structure warpage is easy to be caused, the inner cavity structure of the injection molding structure generates a round angle due to the limitation of the design of the injection mold, the part arranged inside the injection molding electrode plate is required to be designed to be smaller in size or the round angle is synchronously increased, the structure is ensured not to be interfered, the cost of the part is increased, the use temperature and the voltage of the injection molding electrode plate are strictly limited, the temperature of common high-temperature plastic particle materials is below 250 ℃, and the temperature of the PTC chip is further limited, the temperature of the PTC chip is increased, the temperature of the heating particle is required to generate the common electrode material, and the insulation electrode plate is prevented from generating the fault, and the insulation fault occurrence due to the increase of the heating electrode plate is caused by the increase of the temperature. Disclosure of utility model In order to overcome the defects in the prior art, the utility model aims to provide a partition heating PTC heating rod and a PTC heater, which can at least solve part of the problems in the prior art. In order to achieve the above purpose, the technical scheme of the utility model is a partition heating PTC heating rod, which comprises a heating structure, wherein the heating structure comprises a public end electrode plate, a first ceramic plate and a second ceramic plate are respectively arranged at two ends of the public end electrode plate, a plurality of heating partitions are formed between the first ceramic plate and the second ceramic plate through a plurality of third ceramic plates in a separated mode at intervals in sequence, at least one PTC heating chip is arranged in each heating partition, and partition electrode plates are arranged above the PTC heating chips in each heating partition. As one embodiment, the pins of the common terminal electrode plate and the pins of each of the partitioned electrode plates extend to the same side of the heating structure. As one embodiment, the widths of the PTC heating chips of the plurality of heating sections decrease in sequence in the direction from the first ceramic sheet to the second ceramic sheet. As one embodiment, except for the partitioned electrode sheet adjacent to the second ceramic sheet, one side of each end of the other partitioned electrode sheet is bent downward to form a bent portion and is connected to one end of a corresponding pin, and the other end of the pin extends from one side to the outer side of the second ceramic sheet. As one implementation mode, a side of the bending part, which is away from the corresponding pin for connection, is provided with a bending side slot. As one of the implementation manners, the top surfaces of the third ceramic plate and the second ceramic plate are respectively provided with a first pin slot and a second pin slot for the pins of the partitioned electrode plate to pass through. As one of the implementation manners, besides the heating partition close to the first ceramic plate, a fourth ceramic plate is further arranged on one side of the PTC heating chip of each other heating partition, and pin grooves for the pins of the partition electrode plates to pass through are respectively arranged on the top surfaces of the fourth ceramic plate, the third ceramic plate and the second ceramic plate. As one embodiment, the thickness of the fourth ceramic sheet is between the thickness of the PTC heating chip and the sum of the thicknesses o