CN210112302U

CN210112302U - PTC heater shell

Info

Publication number: CN210112302U
Application number: CN201920739774.4U
Authority: CN
Inventors: 罗涛; 何文霞
Original assignee: Anhui Suli Electric Technology Co Ltd
Current assignee: Anhui Suli Technology Co ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-02-21
Anticipated expiration: 2029-05-22

Abstract

The utility model discloses a PTC heater shell, which relates to the technical field of PTC heater processing, and comprises an upper shell, a lower shell and a wire outlet, wherein a sleeve with an external thread is integrally formed at the wire outlet, the sleeve is divided into two halves at the interface of the upper shell and the lower shell, the outer end faces of the two halves of the sleeve are fixedly connected with an elastic clamping piece, the sleeve is connected with a connecting sleeve by screw threads, the outer end of the connecting sleeve is connected with a crimping pipe with gradually reduced inner diameter, with the help of the structure of a special sleeve, a clamping piece, a connecting sleeve and a crimping pipe, after a wire harness passes through the wire outlet and the crimping pipe, the inner wall of the crimping pipe forces the clamping piece to contract inwards by screwing the connecting sleeve and the sleeve, thereby compressing and positioning the wire harness, avoiding loosening or falling off of a connecting point caused by pulling during later period during assembly, and improving the quality of, the rework rate and the production cost are reduced.

Description

PTC heater shell

Technical Field

The utility model belongs to the technical field of the PTC heater processing, concretely relates to PTC heater shell.

Background

The PTC heater is widely used as a heater, and is mostly installed and fixed in a housing having a heat dissipation channel, and a wire harness extends through a wire outlet hole formed in one side of the housing and is connected to a corresponding device. The wire outlet hole of current shell structure size is fixed, does not set up corresponding fastening structure, and the product is when the assembly, and the pencil can lead to its tie point with PTC heater body part to appear becoming flexible because of being dragged, drops even, causes the damage of product, has influenced the quality of product, and the rework cost is higher.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PTC heater shell to solve the above-mentioned defect that leads to among the prior art.

The utility model provides a PTC heater shell, includes casing, lower casing and a wire hole, it is fixed through bolted connection to go up between casing and the lower casing, the wire hole is located casing and lower casing with one side, and wire hole department integrated into one piece has a sleeve pipe that has the external screw thread, the sleeve pipe is cut apart into two halves in the interface department of last casing and lower casing, and the elastic clamping piece of the equal fixed connection of outer terminal surface department of sheathed tube two halves, and threaded connection has the adapter sleeve on the sleeve pipe, and the outer end of adapter sleeve is connected with the crimping pipe that the internal diameter reduces gradually.

Preferably, the left side and the right side of the upper shell and the lower shell are both provided with mounting holes.

Preferably, the inner bottom surfaces of the upper shell and the lower shell are respectively provided with a cushion block.

Preferably, the upper shell, the lower shell, the sleeve, the clamping piece, the connecting sleeve and the crimping pipe are all made of plastics.

The utility model has the advantages that: with the help of the structure of tailor-made sleeve pipe, clamping piece, adapter sleeve and crimping pipe, the pencil is after passing wire hole and crimping pipe, through screwing up adapter sleeve and sleeve pipe, the inner wall of crimping pipe forces the clamping piece to the internal contraction to compress tightly the location with the pencil, avoid the later stage because the pulling during the assembly leads to the not hard up of tie point or drop, improved the quality of product, reduced rework rate and manufacturing cost.

Drawings

Fig. 1 and fig. 2 are schematic structural diagrams of the present invention with different viewing angles.

Fig. 3 is a partial cross-sectional view of the present invention.

The device comprises a shell, a base, a connecting sleeve, a pressing pipe, a clamping piece, a connecting sleeve, a pressing pipe, a mounting hole and a cushion block, wherein the shell comprises 1-an upper shell, 2-a lower shell, 3-a wire outlet hole, 4-a sleeve, 5-a clamping piece, 6-a connecting sleeve, 7-a pressing pipe, 8-a mounting hole and 9.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1 to 3, a PTC heater shell comprises an upper shell 1, a lower shell 2 and a wire outlet 3, the upper shell 1 is fixed to the lower shell 2 through a bolt connection, the wire outlet 3 is arranged on the same side of the upper shell 1 and the lower shell 2, a sleeve 4 with an external thread is integrally formed at the wire outlet 3, the sleeve 4 is divided into two halves at the interface of the upper shell 1 and the lower shell 2, elastic clamping pieces 5 are fixedly connected at the outer end faces of the two halves of the sleeve 4, a connecting sleeve 6 is connected to the sleeve 4 through a thread, and the outer end of the connecting sleeve 6 is connected with a crimping pipe 7 with an inner diameter gradually reduced.

In this embodiment, the left and right sides of the upper and lower cases 1 and 2 are provided with mounting holes 8, in which screws are mounted, and the screws are connected with the side surfaces of the PTC heater.

In this embodiment, the inner bottom surfaces of the upper housing 1 and the lower housing 2 are respectively provided with a spacer 9 for clamping the upper and lower end surfaces of the PTC heater.

In the embodiment, the upper shell 1, the lower shell 2, the sleeve 4, the clamping pieces 5, the connecting sleeve 6 and the crimping pipe 7 are all made of plastics, so that the material source is wide and the cost is low.

The working process and principle are as follows: when the PTC heater is assembled, the PTC heater is firstly placed in the upper shell 1 or the lower shell 2, a wiring harness is laid and passes through the wire outlet hole 3, the clamping piece 5 and the crimping pipe 7, then the upper shell 1 and the lower shell 2 are screwed and fixed by using bolts, then screws on the side surfaces of the upper shell 1 and the lower shell 2 are screwed, the screws are connected with the side surfaces of the PTC heater to complete the fixing of the PTC heater product, then the connecting sleeve 6 is moved to the sleeve 4 and screwed inwards, and the inner diameter size of the outer end of the crimping pipe 7 is smaller than that of the cylindrical clamping piece 5, so when the PTC heater moves to the sleeve 4, the clamping piece 5 is pressed and forced to move to the axis, the wiring harness is pressed and positioned, and the whole assembling process of the PTC heater and the shell is completed.

Based on the above, this scheme is with the help of purpose-made sleeve pipe 4, clamping piece 5, adapter sleeve 6 and crimping pipe 7's structure, the pencil is after passing wire hole 3 and crimping pipe 7, through screwing up adapter sleeve 6 and sleeve pipe 4, crimping pipe 7's inner wall forces clamping piece 5 to the internal contraction to compress tightly the location with the pencil, avoid the later stage because the pulling during the assembly leads to the not hard up of tie point or drop, improved the quality of product, reduced rework rate and manufacturing cost.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.

Claims

1. The utility model provides a PTC heater shell, includes casing (1), casing (2) and a wire hole (3) down, it is fixed through bolted connection between casing (1) and casing (2) down to go up, same one side of casing (1) and casing (2) down is located in wire hole (3), its characterized in that, wire hole (3) department integrated into one piece have a sleeve pipe (4) that has the external screw thread, sleeve pipe (4) are cut apart into two halves in the interface department of last casing (1) and casing (2) down, and the outer terminal surface department of the two halves of sleeve pipe (4) all fixed connection elastic clamping piece (5), and threaded connection has adapter sleeve (6) on sleeve pipe (4), and the outer end of adapter sleeve (6) is connected with crimping pipe (7) that the internal diameter reduces gradually.

2. A PTC heater housing according to claim 1, wherein: the left side and the right side of the upper shell (1) and the lower shell (2) are both provided with mounting holes (8).

3. A PTC heater housing according to claim 1, wherein: the inner bottom surfaces of the upper shell (1) and the lower shell (2) are respectively provided with a cushion block (9).

4. A PTC heater housing according to claim 1, wherein: the upper shell (1), the lower shell (2), the sleeve (4), the clamping piece (5), the connecting sleeve (6) and the crimping pipe (7) are all made of plastics.