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CN-224230189-U - Novel PTC heater of multiunit connection

CN224230189UCN 224230189 UCN224230189 UCN 224230189UCN-224230189-U

Abstract

The utility model discloses a novel PTC heater with multiple groups of connections, each group of PTC heater comprises a PTC heating component, metal heat conducting fins fixed on two sides of the PTC heating component and a radiator arranged on the outer surface of the metal heat conducting fins, the two groups of PTC heaters are fixedly connected through the metal connecting fins, each radiator comprises a plurality of heat radiating fins which are arranged at equal intervals, adjacent heat radiating fins are connected in a clamping mode, the heat radiating fin far away from one side of the metal connecting fins is connected and fixed with a metal heat conducting fin sliding groove, and the heat radiating fin near one side of the metal connecting fins is respectively connected and fixed with the metal heat conducting fins and the metal connecting fin sliding groove. The novel PTC heater with multiple groups of connections changes the traditional gluing mode or lead welding mode for fixation, does not pollute the air during heat exchange, and avoids the problem of uncontrollable falling.

Inventors

  • ZHANG QIDONG
  • XU PING

Assignees

  • 嘉兴三杰电器有限公司

Dates

Publication Date
20260512
Application Date
20250527

Claims (7)

  1. 1. A novel PTC heater with multiple groups of connections comprises a PTC heating component (1), metal heat conducting fins (2) fixed on two sides of the PTC heating component and a radiator (3) arranged on the outer surface of the metal heat conducting fins (2), wherein the two groups of PTC heaters are fixedly connected through the metal connecting fins (4), the novel PTC heater is characterized in that the radiator (3) comprises a plurality of radiating fins (31) which are arranged at equal intervals, adjacent radiating fins (31) are connected in a clamping mode, the radiating fins (31) far away from one side of the metal connecting fins (4) are connected and fixed with sliding grooves of the metal heat conducting fins (2), and the radiating fins (31) close to one side of the metal connecting fins (4) are connected and fixed with sliding grooves of the metal heat conducting fins (2) and the metal connecting fins (4).
  2. 2. A novel PTC heater connected in multiple groups according to claim 1, wherein each radiating fin (31) comprises a sheet-shaped body (311), two opposite long edges of the sheet-shaped body (311) are bent towards the same side to form folded edges (312), at least one lock catch (313) is arranged on the edge of each folded edge (312), a lock hole (314) matched with the lock catch (313) in size is correspondingly arranged below each lock catch (313), and the lock catches (313) of each adjacent radiating fin (31) are correspondingly clamped with the lock holes (314).
  3. 3. The novel PTC heater connected with multiple groups according to claim 2, wherein two ends of one folded edge (312) of the radiating fin (31) far away from one side of the metal connecting sheet (4) respectively extend outwards to form pins (5), two ends of two folded edges of the radiating fin (31) near one side of the metal connecting sheet (4) respectively extend outwards to form pins (5), clamping grooves (6) corresponding to the pins (5) are formed in two sides of the metal connecting sheet (4), clamping grooves (6) corresponding to the pins (5) are formed in one side of the metal heat conducting sheet (2) facing the radiator (3), and each pin (5) is clamped into the corresponding clamping groove (6) and then is fixed in a crimping mode.
  4. 4. A novel PTC heater with multiple groups of connections according to claim 2, wherein at least one reinforcing rib (7) is arranged on the sheet-shaped body (311) of each radiating fin (31).
  5. 5. A novel PTC heater connected in multiple groups according to claim 4, wherein the reinforcing ribs (7) are provided with through windows (8), and the windows (8) are smaller than the length and width of the reinforcing ribs (7).
  6. 6. A novel PTC heater with multiple sets of connections according to claim 2, wherein each of said latches (313) is a U-shaped block that protrudes upward along each of said folds (312) and is bent.
  7. 7. A novel PTC heater with multiple groups of connections according to claim 3, wherein heat-conducting silica gel or heat-conducting silicone grease is filled between each pin (5) and the clamping groove (6).

Description

Novel PTC heater of multiunit connection Technical Field The utility model relates to the technical field of PTC heaters, in particular to a novel PTC heater with a plurality of groups of connected. Background The PTC electric heater is widely applied to indoor units of air conditioners. The heat sink of the PTC heater commonly used in the market at present is an integral aluminum strip corrugated type. The PTC electric heater comprises a single group and a plurality of groups of products, wherein the single group of PTC heater comprises a PTC heating component, metal heat conducting sheets fixed on two sides of the PTC heating component and a radiator arranged on the outer surface of the metal heat conducting sheets. In order to facilitate assembly, the two or more PTC heaters are fixed by adopting a mode of bonding or lead welding between a radiator and an aluminum sheet adhesive when the two PTC heaters are connected, but are easy to be degummed or fall off, and the safety coefficient is not high. Disclosure of utility model Aiming at the defects existing in the prior art, the utility model aims to provide a novel PTC heater with multiple groups of connections so as to avoid the phenomenon of degumming or falling and improve the safety coefficient of products. The utility model aims at realizing the technical scheme that each group of novel PTC heaters comprises a PTC heating component, metal heat conducting fins fixed on two sides of the PTC heating component and a radiator arranged on the outer surface of the metal heat conducting fins, wherein the two groups of PTC heaters are fixedly connected through the metal connecting pieces, each radiator comprises a plurality of radiating fins which are arranged at equal intervals, the adjacent radiating fins are connected in a clamping way, the radiating fin on one side far away from the metal connecting piece is connected and fixed with a metal heat conducting fin sliding groove, and the radiating fin on one side close to the metal connecting piece is respectively connected and fixed with the metal heat conducting fins and the metal connecting piece sliding groove. According to the technical scheme, the radiating fins on one side far away from the metal connecting piece are connected and fixed with the metal heat conducting fin sliding grooves, the radiating fins on one side close to the metal connecting piece are respectively connected and fixed with the metal heat conducting piece and the metal connecting piece sliding grooves, the connecting and fixing mode is adopted, the traditional gluing mode or lead welding mode is changed, no pollution is caused in air during heat exchange, the problem of uncontrollable falling is avoided, meanwhile, the radiating fins are connected in a clamping mode, on one hand, the processing is convenient, the processing cost is reduced, on the other hand, the radiating fins are subjected to high-precision control by adopting the distance between adjacent radiating fins after being clamped, the wind resistance is small, the heat exchange efficiency is high, and the air flow noise is reduced. The heat dissipation plate is further characterized in that each heat dissipation plate comprises a sheet-shaped body, two opposite long edges of the sheet-shaped body are bent towards the same side to form folded edges, at least one lock catch is arranged on each folded edge, lock holes matched with the lock catches in size are correspondingly arranged below the lock catches, and the lock catches of each adjacent heat dissipation plate are correspondingly clamped with the lock holes. The heat conducting fin structure is further provided with pins formed by outwards extending two ends of one folded edge of the radiating fin far away from one side of the metal connecting sheet, pins formed by outwards extending two ends of two folded edges of the radiating fin near one side of the metal connecting sheet, clamping grooves corresponding to the pins are formed in two sides of the metal connecting sheet, clamping grooves corresponding to the pins are formed in one side of the metal heat conducting sheet, facing the radiator, of the metal heat conducting sheet, and the pins are clamped in the clamping grooves and then are fixedly pressed. The utility model is further provided with at least one reinforcing rib on the sheet-shaped body of each radiating fin. Through adopting above-mentioned technical scheme, set up the strengthening rib and can strengthen the intensity of each fin, prevent to receive external force deformation. The utility model is further provided with a through window arranged on the reinforcing rib, wherein the window is smaller than the length and the width of the reinforcing rib. By adopting the technical scheme, the reinforcing ribs are not damaged to play a role in enhancing strength, the wind speed flow can be enhanced, and the heat dissipation effect is improved. The utility model is further arranged that each lock catch is