CN109640403B

CN109640403B - PTC heater power supply device and assembly process thereof

Info

Publication number: CN109640403B
Application number: CN201811532088.6A
Authority: CN
Inventors: 田春辉
Original assignee: Bonaire Automotive Electrical Systems Co Ltd
Current assignee: Bonaire Automotive Electrical Systems Co Ltd
Priority date: 2018-12-14
Filing date: 2018-12-14
Publication date: 2022-05-27
Anticipated expiration: 2038-12-14
Also published as: CN109640403A

Abstract

The invention relates to the field of PCT heaters, in particular to a PTC heater power supply device and an assembly process thereof, wherein the PTC heater power supply device comprises a PCB printed circuit board, a plug mechanism for being connected with an external control power supply in a plugging way is connected onto the PCB printed circuit board, and a plurality of PTC heater components are arranged on the PCB printed circuit board; each of the PTC heater assemblies comprises a plurality of PTC heating units disposed on a PCB; each PTC heating unit is connected with the PCB through a spring socket. The structure of the traditional PTC heater is changed, the installation of the PTC heating unit 31 is simpler by adding the spring socket 2, the spring socket 2 is directly inserted with the PTC heating unit 31 during assembly, and an external control power supply is connected with the plug mechanism, so that the assembly efficiency of the product is greatly improved by the arrangement mode.

Description

PTC heater power supply device and assembly process thereof

Technical Field

The invention relates to the field of PCT heaters, in particular to a PTC heater power supply device and an assembly process thereof.

Background

The conventional mode that a plurality of groups of PTC heating unit electrodes are connected with an external power supply is that the PTC heating units are directly welded with a power panel, the manufacturing process is backward, the PTC heating materials are not beneficial to modular assembly, and the manufacturing cost is high.

Disclosure of Invention

The present invention is directed to overcoming the deficiencies of the prior art and providing a PTC heater structure that is easy to assemble.

In order to achieve the purpose, the invention adopts the technical scheme that:

a PTC heater power supply device comprises a PCB printed circuit board, wherein a plug mechanism used for being connected with an external control power supply in a plugging mode is connected onto the PCB printed circuit board, and a plurality of PTC heater assemblies are arranged on the PCB printed circuit board; each of the PTC heater assemblies comprises a plurality of PTC heating units disposed on a PCB; each PTC heating unit is connected with the PCB through a spring socket.

The spring socket comprises a socket body, and a communication antenna which is used for being communicated with the PCB is arranged on the socket body; the socket body is provided with a clamping groove for being inserted with the PTC heating unit; the PTC heating unit is connected with the PCB through a spring socket.

An elastic clamping piece used for clamping the PTC heating unit is arranged in the clamping groove; the PTC heating unit is communicated with the communicating antenna through an elastic clamping piece; the elastic card is used for communicating the PTC heating unit with a circuit on the PCB.

The elastic card comprises a first elastic sheet, a second elastic sheet and a third elastic sheet, and the first elastic sheet are distributed on the same side of the inner wall of the clamping groove; the third elastic sheet is also arranged on the inner wall of the clamping groove and is arranged opposite to the first elastic sheet and the second elastic sheet; the first elastic sheet, the second elastic sheet and the third elastic sheet are distributed in an isosceles triangle shape.

One end of the communication antenna far away from the socket body is provided with a limiting sinking groove.

The plug mechanism comprises a basic plug and an extension plug, wherein each PTC heater assembly is distributed at intervals and is distributed in parallel, one PTC heater assembly is connected with the basic plug in the plug mechanism, and the other PTC heater assemblies are connected with the extension plug.

An assembly process of a PTC heater mounting structure, the assembly process comprising the steps of:

(1) determining the number of PTC heater assemblies in a PTC heater and the PTC in each PTC heater assembly

The number of heating units;

(2) after the step (1) is finished, welding the spring socket in advance of the PCB according to the distribution of the PTC heating units, and arranging a corresponding plug mechanism at the extending position of one side of the PCB;

(3) after the step (2) is finished, inserting the PTC heating unit into the corresponding spring socket, and adjusting the relative positions of all the components;

(4) after the step (3) is completed, the assembly of the PTC heater is completed, if the assembly needs to be repeated,

repeating the steps.

The invention has the advantages that:

the structure of the traditional PTC heater is changed, the installation of the PTC heating unit 31 is simpler by adding the spring socket 2, the spring socket 2 is directly inserted with the PTC heating unit 31 during assembly, and an external control power supply is connected with the plug mechanism, so that the assembly efficiency of the product is greatly improved by the arrangement mode.

Drawings

The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the spring socket of the present invention.

Fig. 3 is a perspective view of the spring socket of the present invention.

The parts in the above figures are labeled:

1. PCB printed circuit board, 2, spring socket, 3, PTC heater subassembly, 31, PTC heating element.

Detailed Description

The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.

A PTC heater power supply device comprises a PCB (printed Circuit Board) 1, wherein a plug mechanism for being connected with an external control power supply in a plugging manner is connected to the PCB 1, and a plurality of PTC heater assemblies 3 are arranged on the PCB 1; each of the PTC heater assemblies 3 includes a plurality of PTC heating units 31 disposed on the PCB printed circuit board 1; each PTC heating unit 31 is connected with the PCB 1 through a spring socket 2; the structure of the traditional PTC heater is changed, the installation of the PTC heating unit 31 is simpler by adding the spring socket 2, the spring socket 2 is directly inserted with the PTC heating unit 31 during assembly, and an external control power supply is connected with the plug mechanism, so that the assembly efficiency of the product is greatly improved by the arrangement mode.

Preferably, the spring socket 2 of the present invention includes a socket body 21, and the socket body 21 is provided with a communication antenna 23 for communicating with the PCB 1; a clamping groove 22 for being inserted with the PTC heating unit 31 is arranged on the socket body 21; the PTC heating unit 31 is connected with the PCB 1 through the spring socket 2; the joint groove 22 is convenient for the PTC heating unit 31 to be placed, the joint groove 22 also has a positioning effect, meanwhile, the spring socket 2 is generally formed in one step through stamping, the production is convenient, and meanwhile, the socket body 21 is a metal piece, so that the communication of subsequent circuits is convenient.

Preferably, in the present invention, an elastic clip 24 for clamping the PTC heating unit 31 is provided in the clip groove 22; the PTC heating unit 31 is communicated with the communication antenna 23 through an elastic clamping piece 24; the elastic clamping piece 24 is used for communicating the PTC heating unit 31 with a circuit on the PCB 1; the interaction between the elastic clamping pieces 24 can realize the clamping operation of the PTC heating unit 31, meanwhile, the elastic clamping pieces 24 are attached to the antenna on the PTC heating unit 31, the communication of the PTC heating unit 31 can be realized, the communication of the PTC heating unit 31 and the PCB 1 can be realized, the subsequent normal work can be ensured, and meanwhile, the elastic clamping pieces 24 are optimized, the elastic clamping pieces 24 comprise a first elastic piece 241, a second elastic piece 242 and a third elastic piece 243, and the first elastic piece 241 are distributed on the same side of the inner wall of the clamping groove 22; the third elastic sheet 243 is also arranged on the inner wall of the clamping groove 22, and the third elastic sheet 243 is arranged opposite to the first elastic sheet 241 and the second elastic sheet 242; through the interaction among the first elastic sheet 241, the second elastic sheet 242 and the third elastic sheet 243, the stability of the connection of the PTC heating unit 31 can be well realized; certainly, in order to ensure the stability of the clamping, the first elastic sheet 241, the second elastic sheet 242 and the third elastic sheet 243 are distributed in an isosceles triangle shape; meanwhile, in order to better ensure the connection stability of the PTC heating unit 31, the vertical cross sections of the first elastic sheet 241, the second elastic sheet 242 and the third elastic sheet 243 are arc-shaped, that is, arc-shaped structures as shown in the drawings, so that the contact areas of the first elastic sheet 241, the second elastic sheet 242 and the third elastic sheet 243 with the PTC heating unit 31 can be increased, and meanwhile, the deformation is easy, and the subsequent assembly is convenient.

Preferably, in the invention, a limit sinking groove 231 is arranged at one end of the communication antenna 23 far away from the socket body 21; the limit sinking groove 231 is arranged, so that the side edge of the communication antenna 23 forms a bulge which is convenient to be connected with a hole on the PCB 1, and meanwhile, the limit sinking groove 231 can play a role in limiting, the accuracy of the placement position of the communication antenna 23 is ensured, and the accuracy of the placement of the spring socket 2 is ensured; in fact, the spring socket 2 of the present invention is connected to the original PTC heating unit 31 at substantially the same position and in substantially the same manner, and the spring socket 2 of the present invention is connected to the circuit board by welding, and through such a structural design, the present invention only changes the connection manner of the PTC heating unit 31 to the circuit board, thereby facilitating the connection of the PTC heating unit 31.

Preferably, the plug mechanism of the invention comprises a basic plug 4 and an extension plug 5, each of the PTC heater assemblies 3 is distributed at intervals and parallel to each other, wherein one of the PTC heater assemblies 3 is connected with the basic plug 4 in the plug mechanism, and the other PTC heater assemblies 3 are connected with the extension plug 5; of course, one plug can be directly used in the invention, namely, after the plug is connected with a power supply, all the PTC heater assemblies work; of course, how to set can be set according to needs; in the invention, a plurality of PTC heater assemblies 3 are arranged, the PTC heater assemblies 3 are not mutually influenced, each PTC heater assembly 3 is connected with a plug mechanism, the plug mechanism is a known technology, a basic plug 4 and an extension plug 5 are named only for convenience of presentation, and the basic plug 4 and the extension plug 5 are equivalent to a traditional plug structure and are used for communicating the PTC heater assemblies 3 with an external control power supply; the PTC heater assemblies 3 can supply power in different areas by the arrangement of the structure, so that the PTC heater assemblies 3 in different areas can be selected to be electrified according to needs, the heating value of the heater disclosed by the invention can be adjusted, and the heater can be better applied in practice; meanwhile, as long as the heater disclosed by the invention works, the PTC heater assembly 3 connected with the basic plug 4 is always in a power supply state, and the subsequent PTC heater assembly 3 connected with the extension plug 5 can be used for judging whether the corresponding PTC heater assembly 3 is connected with a power supply according to actual requirements, so that the heating value of the heater disclosed by the invention can be controlled.

(1) determining the number of PTC heater assemblies 3 in the PTC heater and the number of PTC heating units 31 in each PTC heater assembly 3;

(2) after the step (1) is finished, the spring socket 2 is welded before the PCB 1 according to the distribution of the PTC heating units 31, and a corresponding plug mechanism is arranged at the extending position of one side of the PCB;

(3) after the step (2) is finished, inserting the PTC heating unit 31 into the corresponding spring socket 2, and adjusting the relative positions of all the components;

repeating the steps.

It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.

Claims

1. A PTC heater power supply device comprises a PCB printed circuit board, wherein a plug mechanism used for being connected with an external control power supply in a plugging way is connected onto the PCB printed circuit board; each of the PTC heater assemblies comprises a plurality of PTC heating units disposed on a PCB; each PTC heating unit is connected with the PCB through a spring socket;

the spring socket comprises a socket body, and a communication antenna which is used for being communicated with the PCB is arranged on the socket body; the socket body is provided with a clamping groove for being inserted with the PTC heating unit; the PTC heating unit is connected with the PCB through a spring socket;

an elastic clamping piece used for clamping the PTC heating unit is arranged in the clamping groove; the PTC heating unit is communicated with the communicating antenna through an elastic clamping piece; the elastic card is used for communicating the PTC heating unit with a circuit on the PCB;

the elastic card comprises a first elastic sheet, a second elastic sheet and a third elastic sheet, and the first elastic sheet and the second elastic sheet are distributed on the same side of the inner wall of the clamping groove; the third elastic sheet is also arranged on the inner wall of the clamping groove and is arranged opposite to the first elastic sheet and the second elastic sheet; the first elastic sheet, the second elastic sheet and the third elastic sheet are distributed in an isosceles triangle shape;

the vertical sections of the first elastic sheet, the second elastic sheet and the third elastic sheet are arc-shaped;

2. A PTC heater power supply apparatus according to claim 1, wherein the plug means comprises a base plug and an extension plug, each of the PTC heater assemblies being spaced apart and arranged parallel to each other, one of the PTC heater assemblies being connected to the base plug of the plug means and the remaining PTC heater assemblies being connected to the extension plug.

3. A process of assembling a PTC heater power supply apparatus according to any one of claims 1-2, wherein the assembling process comprises the steps of:

(1) determining the number of PTC heater assemblies in the PTC heater power supply apparatus and the number of PTC heating units in each PTC heater assembly;

(2) after the step (1) is finished, welding the spring socket with a PCB (printed Circuit Board) according to the distribution of the PTC heating units, and extending a corresponding plug mechanism from one side of the PCB;

(3) after the step (2) is finished, inserting the PTC heating units into the corresponding spring sockets, and adjusting the relative positions of all the components;

(4) and (4) after the step (3) is completed, assembling the PTC heater power supply device, and repeating the steps if repeated assembly is needed.