CN214960175U

CN214960175U - PTC electric heater lead type sealing structure

Info

Publication number: CN214960175U
Application number: CN202121129922.4U
Authority: CN
Inventors: 徐小庆; 胡泽谋
Original assignee: Zhuhai Dongfang Electric Heating Technology Co ltd
Current assignee: Zhuhai Dongfang Electric Heating Technology Co ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-11-30
Anticipated expiration: 2031-05-25

Abstract

The utility model discloses a PTC electric heater lead type sealing structure, which comprises a rubber sleeve and a heater aluminum pipe, wherein an inner cable is arranged inside the heater aluminum pipe, a protective sleeve is arranged inside the rubber sleeve, an outgoing line is arranged at one end of the rubber sleeve, one end of the outgoing line penetrates through the inside of the protective sleeve and is connected with a connecting plate, the other end of the connecting plate is electrically connected with the inner cable, and a limiting ring is arranged at one end of the protective sleeve, which is far away from the outgoing line; this practicality provides good seal structure through the rubber sleeve and the rubber coating structure that set up, has guaranteed PTC electric heater's waterproof performance, through setting up spacing ring and assorted auxiliary structure in inside in addition, can provide threaded connection's card line structure, can block inside cable, when outside cable receives the dragging, avoids inside cable and the junction fracture of connecting plate or contact failure's problem to take place.

Description

PTC electric heater lead type sealing structure

Technical Field

The utility model relates to an electric heater seal structure field specifically is a PTC electric heater lead wire formula seal structure.

Background

The PTC electric heater is provided with electric elements such as an electrode plate, a connecting terminal and the like besides the PTC ceramic heating element and the aluminum heat dissipation strip, and can be connected with an external electric wire during installation. In the prior PTC electric heater for the air conditioner, two ends of an aluminum pipe are communicated, air flow can pass through the aluminum pipe and a heating core, and only part of glue is applied between a positive electrode plate and a negative electrode plate which extend out of the heating core for isolation, so that short circuit is prevented. However, when the air conditioner is used, the PTC electric heater is sometimes in a water-carrying working environment such as dehumidification, condensation and mould removal, and water vapor invades into the aluminum pipe to affect the performance of the PTC electric heater, so that the PTC electric heater is required to have good waterproof performance, and the use safety is ensured.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PTC electric heater pin formula seal structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a PTC electric heater pin-out type seal structure, includes rubber sleeve and heater aluminum pipe, the inside of heater aluminum pipe is provided with interior cable, the inside of rubber sleeve is provided with the protective sheath, the one end of rubber sleeve is provided with the lead-out wire, the internal connection that the protective sheath was run through to the one end of lead-out wire has the connecting plate, the other end and the interior cable electric connection of connecting plate, the one end that the lead-out wire was kept away from to the protective sheath still is provided with the spacing ring.

Preferably, the inside welding of spacing ring has the baffle, the inside threaded connection that still goes of spacing ring has the commentaries on classics board, the outside of changeing the board has still welded the buckle.

Preferably, the structure of the baffle is a rectangular plate body, the structure of the rotating plate is a circular plate structure with arc-shaped notches formed in two sides, a wire passing notch is formed between the baffle and the rotating plate, and the electrode wire of the inner cable penetrates through the wire passing notch.

Preferably, one end of the rubber sleeve is welded with the threaded sleeve, the threaded sleeve is in threaded connection with the port of the heater aluminum pipe, and a sealing glue is coated at the joint of the rubber sleeve and the heater aluminum pipe.

Preferably, the inside of the protective sleeve is positioned on the outer side of the outgoing line and is further bonded with a limiting pad, and one side face of the limiting pad is tightly attached to the connecting plate.

Preferably, the outgoing line passes through connecting plate and interior cable electric connection, the electrode line of outgoing line and interior cable all is connected through the tinned mode.

Compared with the prior art, the beneficial effects of the utility model are that:

through the rubber sleeve and the rubber coating structure that set up, a good seal structure is provided, PTC electric heater's waterproof performance has been guaranteed, in addition through setting up spacing ring and assorted auxiliary structure in inside, can provide threaded connection's card line structure, can block inside cable, when outside cable receives the dragging, avoid inside cable and the junction fracture of connecting plate or contact failure's problem to take place, possess certain beneficial effect.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the inner structure of the rubber sleeve of the present invention;

fig. 3 is an enlarged schematic view of a portion a of fig. 2 according to the present invention;

fig. 4 is a schematic structural view of the stop collar of the present invention.

In the figure: 10. a rubber sleeve; 11. a threaded sleeve; 12. a protective sleeve; 121. a connecting plate; 122. a limiting pad; 13. an outgoing line; 14. a limiting ring; 141. rotating the plate; 142. a baffle plate; 143. buckling the plate; 20. a heater aluminum tube; 21. an inner cable.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a PTC electric heater lead type sealing structure includes a rubber sleeve 10 and a heater aluminum tube 20, an inner cable 21 is disposed inside the heater aluminum tube 20, a protective sleeve 12 is disposed inside the rubber sleeve 10, an outgoing line 13 is disposed at one end of the rubber sleeve 10, a connection plate 121 is connected to one end of the outgoing line 13 penetrating through the inside of the protective sleeve 12, the other end of the connection plate 121 is electrically connected to the inner cable 21, and a limit ring 14 is further disposed at one end of the protective sleeve 12 away from the outgoing line 13.

The inner side of the limiting ring 14 is welded with a baffle 142, the inner side of the limiting ring 14 is further connected with a rotating plate 141 through threads, the outer side of the rotating plate 141 is further welded with a pinch plate 143, the baffle 142 is a rectangular plate body, the rotating plate 141 is a circular plate structure with arc-shaped notches formed in two sides, a wire passing notch is formed between the baffle 142 and the rotating plate 141, an electrode wire of the inner cable 21 penetrates through the wire passing notch, the rotating plate 141 is slightly screwed before installation, the position and the width of the wire passing notch need to be ensured after screwing, then the electrode wire of the inner cable 21 is inserted into the wire passing notch, and is screwed again through the pinch plate 143 until the rotating plate 141 and the pinch plate 143 tightly clamp the electrode wire;

wherein, the one end welding of rubber sleeve 10 has threaded sleeve 11, threaded sleeve 11 and heater aluminum pipe 20's port threaded connection, rubber sleeve 10 scribbles sealed glue with heater aluminum pipe 20's junction, the inside outside that is located lead-out wire 13 of protective sheath 12 still bonds there is spacing pad 122, a side and the connecting plate 121 of spacing pad 122 are hugged closely, lead-out wire 13 passes through connecting plate 121 and interior cable 21 electric connection, lead-out wire 13 and interior cable 21's electrode line all are connected through tinned mode, carry out threaded connection through threaded sleeve 11 and heater aluminum pipe 20, provide the buffering shock attenuation through spacing pad 122 to can guarantee the stable in position of internal connection board 121.

The working principle is as follows: when using, at first with spacing ring 14 and electrode line connection, then be connected electrode line and connecting plate 121, later with through the bolt fastening between spacing ring 14 and the protective sheath 12, change board 141's mode extrusion electrode line through rotating after fixed, guarantee the stable back of screw thread, through changeing board 141 and buckle 143 centre gripping electrode line, guarantee the stability of electrode line, then embolia the inside of rubber sleeve 10 with protective sheath 12, and fill sealed glue, be connected thread bush 11 and heater aluminum pipe 20 after filling sealed glue, accomplish holistic fixed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a PTC electric heater pin formula seal structure, includes rubber sleeve (10) and heater aluminum pipe (20), the inside of heater aluminum pipe (20) is provided with interior cable (21), its characterized in that: the inside of rubber sleeve (10) is provided with protective sheath (12), the one end of rubber sleeve (10) is provided with lead-out wire (13), the internal connection that protective sheath (12) were run through to the one end of lead-out wire (13) has connecting plate (121), the other end and interior cable (21) electric connection of connecting plate (121), the one end that lead-out wire (13) were kept away from in protective sheath (12) still is provided with spacing ring (14).

2. A PTC electric heater lead sealing structure according to claim 1, wherein: the inside welding of spacing ring (14) has baffle (142), the inside threaded connection that still goes of spacing ring (14) has commentaries on classics board (141), the outside of changeing board (141) has still welded buckle (143).

3. A PTC electric heater lead sealing structure according to claim 2, wherein: the structure of baffle (142) is the rectangular plate body, the structure of commentaries on classics board (141) is the plectane structure that the arc notch was seted up to both sides, form between baffle (142) and commentaries on classics board (141) and cross the line notch, the electrode line of interior cable (21) passes through and crosses the line notch.

4. A PTC electric heater lead sealing structure according to claim 1, wherein: one end of the rubber sleeve (10) is welded with a threaded sleeve (11), the threaded sleeve (11) is in threaded connection with a port of the heater aluminum pipe (20), and a sealant is coated at the joint of the rubber sleeve (10) and the heater aluminum pipe (20).

5. A PTC electric heater lead sealing structure according to claim 1, wherein: the inside of protective sheath (12) is located the outside of lead-out wire (13) and still bonds there is spacing pad (122), a side and connecting plate (121) of spacing pad (122) are hugged closely.

6. A PTC electric heater lead sealing structure according to claim 1, wherein: the outgoing line (13) is electrically connected with the inner cable (21) through the connecting plate (121), and the outgoing line (13) and the electrode wire of the inner cable (21) are connected in a tinning mode.