PTC (Positive Temperature Coefficient) module with bracket for washing machine

Abstract

The utility model relates to the technical field of heating devices, and discloses a PTC (Positive Temperature Coefficient) module with a support for a washing machine, which comprises a support body and a PTC heating module, the support body is arranged at a bottom plate of a drying device, the support body is provided with an air outlet and an air inlet, the support body is provided with a mounting surface for mounting screws, and the PTC heating module is arranged on the support body. The air outlet and the installation face are arranged in a coplanar mode, the PTC heating module is arranged between the air outlet and the air inlet, and air enters the support body through the air inlet and enters the drying device from the air outlet after being heated by the PTC heating module.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating device technical field, concretely is a PTC module with support for washing machine. BACKGROUND

[0002] The PTC heating module is a kind of heating assembly based on semiconductor material, and the PTC in its full name represents "positive temperature coefficient "(Positive Temperature Coefficient).The working principle of PTC heating module is based on the positive temperature coefficient characteristic of its material, when current passes through PTC material, the heat generation inside material is proportional to resistance, with the increase of temperature, the resistance of PTC material gradually increases, resulting in the heat also increases, forms a self-regulating temperature control mechanism, on the contrary, when temperature decreases, resistance decreases, and heat output will also decrease accordingly.This characteristic enables PTC heating module to realize accurate temperature control without external controller.PTC heating module is usually composed of PTC element, heat dissipation structure, circuit connection part, etc., wherein, PTC element is the core component, responsible for converting electrical energy into heat energy, heat dissipation structure is used to effectively dissipate the generated heat, to prevent module overheating, and circuit connection part is responsible for connecting PTC element with external power supply, to realize current input and control.

[0003] The previous washing machine uses electric heating wire as drying module, electric heating wire has open fire, continuous temperature rise of about 700 degrees, PTC has the advantage of self-control temperature, surface does not turn red when working, safe and energy-saving, at the same time, the internal space of washing machine is limited, when installing PTC heating module, its volume and shape need to be considered, to ensure that it can be installed smoothly and does not affect the normal work of other components, PTC heating module needs reasonable layout to ensure smooth air flow, so as to improve heat dissipation efficiency, if layout is unreasonable, it may cause module overheating or poor heat dissipation. UTILITY MODEL CONTENTS

[0004] (I) technical problem solved

[0005] In view of the deficiency of prior art, the utility model provides a PTC module with support for washing machine, which has the advantages of compact layout, simple installation and excellent ventilation, and solves the problem of overheating during drying in washing machine.

[0006] (II) technical scheme

[0007] In order to realize the above-mentioned layout compact, simple installation, good ventilation purposes, the utility model provides the following technical scheme: a PTC module with support for washing machine, including support body and PTC heating module, the support body is arranged at the drying device bottom plate, support body is equipped with air outlet and air inlet, the support body is equipped with the installation surface for screw installation, the air outlet and installation surface are coplanar arrangement, the PTC heating module is arranged between air outlet and air inlet, air enters into the support body through air inlet, enters into the drying device from air outlet after being heated by PTC heating module.

[0008] Preferably, the PTC heating module and air inlet are vertically arranged with the installation surface, the support body side is provided with four circular wire outlet installation holes for connecting PTC heating module circuit.

[0009] Preferably, the support body and PTC heating module upper and lower sides are provided with bosses, the bosses are uniformly arrayed, and heat dissipation gaps are generated.

[0010] Preferably, the PTC heating module and air outlet are provided with a temperature control unit, the temperature control unit is arranged through the support body, and the temperature control unit is in communication with the circuit in the PTC heating module from the outside of the support body.

[0011] Preferably, the circuit directly communicated between the temperature control unit and the PTC heating module is provided with a parallel pipe.

[0012] Preferably, the temperature control unit is provided with two, one is a manual reset temperature controller, and the other is an automatic reset temperature controller, and the two temperature control units are connected in series on the live wire.

[0013] Preferably, the temperature control unit is provided with a screw column for shielding the screw.

[0014] Preferably, the support body and air outlet are arc-shaped on the side away from the PTC heating module.

[0015] Preferably, the air outlet arc-shaped side is provided with a wind-blocking edge above, and the shape of the wind-blocking edge is consistent with the air outlet arc-shaped side.

[0016] Preferably, the support body bottom is provided with a black sponge pad.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the utility model provides a PTC module with support for washing machine, which has the following beneficial effects:

[0019] 1、The washing machine heating module support, through the air outlet and the mounting surface coplanar arrangement, so that the support body in the drying device is more compact, reduces the space occupation, this design allows the support to be more closely attached to other parts of the drying device, improves the space utilization of the whole system, the coplanar arrangement makes the air more smoothly from the air inlet into the support body, after heating by the PTC heating module, then from the air outlet high efficiency discharge, this airflow path optimization reduces the airflow in the support inside the obstruction, improves the heat dissipation efficiency, the coplanar arrangement of the air outlet and the mounting surface simplifies the installation process of the support, so that the screws and other fasteners can be more conveniently installed in place, because the structure is arranged at the drying device bottom plate, through the screw and other fasteners can be directly installed from the bottom plate side, without additional space or tools, and more convenient during maintenance, the coplanar arrangement helps to enhance the overall rigidity of the support body, so that it is more stable and reliable during installation and use, at the same time, the device adopts PTC heating module, PTC heating module has positive temperature coefficient characteristic, that is, the resistance value increases with the increase of temperature, this characteristic makes the PTC heating module can automatically adjust the heating power after reaching the set temperature, avoid overheating and energy waste.

[0020] 2、The washing machine heating module support, through the PTC heating module and the air inlet, the vertical arrangement of the mounting surface, this vertical arrangement helps to optimize the air flow path, so that the air can more smoothly pass through the air inlet into the support body, after heating by the PTC heating module, from the air outlet, the vertical arrangement also reduces the direct contact area between the PTC heating module and the mounting surface, helps to reduce heat conduction, reduce heat loss, improve energy utilization efficiency, through the setting of the boss between the PTC heating module and the support body forms a heat dissipation gap, helps to dissipate heat and prevent the support body from bearing too high temperature, the uniform array distribution of the boss ensures the uniformity of heat dissipation, avoids the local overheating situation.

[0021] 3、The washing machine heating module support, through the air outlet and the side of the support body away from the PTC heating module is designed as a circular arc, this design not only conforms to the principle of aerodynamics, helps to optimize the air flow, also improves the close fit between the support body and the bottom plate, the setting of the wind shield further enhances the sealing between the support body and the bottom plate, prevents the leakage of heat and the entry of foreign matter from the outside. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structure schematic view of the utility model;

[0023] Figure 2 It is a structure schematic view of the utility model air inlet;

[0024] Figure 3 It is a structure schematic view of the utility model support body;

[0025] Figure 4 It is the side structure schematic view of the utility model;

[0026] Figure 5 It is the bottom structure schematic view of the utility model;

[0027] Figure 6 It is the boss detail schematic view of the utility model.

[0028] In the drawing: 1, support body; 2, PTC heating module; 11, boss; 12, air outlet; 13, air inlet; 14, temperature control unit; 21, outgoing line mounting hole; 101, mounting face; 102, parallel line pipe; 103, sponge pad; 121, wind-blocking edge; 141, screw column. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] Please refer to Figures 1-4 A PTC module with support for washing machine, including support body 1 and PTC heating module 2, the support body 1 is arranged at the drying device bottom plate, support body 1 is equipped with air outlet 12 and air inlet 13, the support body 1 is equipped with the mounting face 101 for screw installation, the air outlet 12 is coplanar with the mounting face 101, the PTC heating module 2 is arranged between air outlet 12 and air inlet 13, air enters into the support body 1 through air inlet 13, and after being heated by PTC heating module 2, it enters into the drying device from air outlet 12.

[0031] Please refer to Figure 1 , Figure 3 and Figure 6 The PTC heating module 2 and air inlet 13 are vertically arranged with the mounting face 101, the support body 1 side is equipped with outgoing line mounting hole 21, the outgoing line mounting hole 21 is arranged as four separate circular holes, so that there is stronger mechanical strength, and the circuit can have independent outgoing line hole, more safe, for the connection of PTC heating module 2 circuit, the support body 1 and PTC heating module 2 upper and lower sides are equipped with boss 11, the boss 11 is in uniform array, generates heat dissipation gap, so that the support body 1 avoids large-area contact with PTC heating module 2, and simultaneously, the gap also ensures that the support body 1 will not bear excessively high temperature.

[0032] The PTC heating module 2 and the air outlet 12 are provided with a temperature control unit 14, the temperature control unit 14 is provided through the support body 1 as a whole, and is communicated with the line in the PTC heating module 2 from the outside of the support body 1, the line directly communicated between the temperature control unit 14 and the PTC heating module 2 is provided with a parallel pipe 102, the temperature control unit 14 is provided with two, one is a manual reset temperature controller, and the other is an automatic reset temperature controller, the two temperature control units 14 are connected in series on the live wire, and the danger of dry burning or other high temperature is protected, the temperature control unit 14 is provided with a screw column 141 beside for shielding the screw, and the screw head is protected from hanging and breaking the hand during assembly.

[0033] The support body 1 and the air outlet 12 are arc-shaped away from the PTC heating module 2 on one side, the air outlet 12 is provided with a wind shielding edge 121 above the arc-shaped side, the shape of the wind shielding edge 121 is consistent with the arc-shaped side of the air outlet 12, so that the support body 1 is more closely attached to the bottom plate, and has good sealing performance.

[0034] Referring to Figure 5 The support body 1 is provided with a black sponge pad 103 at the bottom.

[0035] Working principle: PTC, i.e. positive temperature coefficient thermistor, is a kind of special resistance material, the resistance value of which will increase with the increase of temperature, this characteristic makes the PTC material can automatically adjust the temperature during heating, when the current passes through the PTC heating module 2, the PTC heating module 2 generates heat, and with the increase of temperature, the resistance value will gradually increase, because the resistance value of PTC material increases with the increase of temperature, therefore, when the temperature reaches a certain degree, the increase of resistance value will limit the passing of current, thereby reducing the heating power, this automatic adjusting mechanism makes the PTC heating module can keep stable after reaching the set temperature, avoids overheating, when the washing machine or dryer is drying, the temperature of the PTC heating module 2 will not be higher than a predetermined value, which avoids damage to fabrics or equipment caused by overheating, the previous washing machine uses electric heating wire as drying module, the electric heating wire has open fire and continuous temperature rise of about 700 degrees, which is easy to cause danger.

[0036] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0037] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. A PTC module with a bracket for a washing machine, comprising a bracket body (1) and a PTC heating module (2), the bracket body (1) is arranged at the bottom plate of a drying device, the bracket body (1) is provided with an air outlet (12) and an air inlet (13), characterized in that: the bracket body (1) is provided with a mounting surface (101) for screw mounting, the air outlet (12) is arranged in the same plane as the mounting surface (101), the PTC heating module (2) is arranged between the air outlet (12) and the air inlet (13), air enters the bracket body (1) through the air inlet (13), is heated by the PTC heating module (2), and then enters the drying device from the air outlet (12).

2. The PTC module with support for washing machines according to claim 1, characterized in that: The PTC heating module (2) and the air inlet (13) are arranged vertically to the mounting surface (101), the side surface of the bracket body (1) is provided with four circular wire outlet mounting holes (21) for connecting the PTC heating module (2) line.

3. The PTC module with bracket for a washing machine according to claim 2, characterized in that: The bracket body (1) and the PTC heating module (2) are provided with bosses (11) between the upper and lower sides, the bosses (11) are uniformly arrayed to generate heat dissipation gaps.

4. The PTC module with bracket for a washing machine according to claim 2, characterized in that: The PTC heating module (2) and the air outlet (12) are provided with a temperature control unit (14), the temperature control unit (14) is arranged through the bracket body (1) as a whole, and the temperature control unit (14) is in communication with the line in the PTC heating module (2) from the outside of the bracket body (1).

5. The PTC module with bracket for a washing machine according to claim 4, characterized in that: The line directly connected between the temperature control unit (14) and the PTC heating module (2) is provided with a parallel pipe (102).

6. The PTC module with bracket for a washing machine according to claim 5, characterized in that: The temperature control unit (14) is provided with two, one is a manual reset temperature controller, and the other is an automatic reset temperature controller, the two temperature control units (14) are connected in series on the live wire.

7. A PTC module with bracket for washing machines according to any of claims 4-6, characterized in that: The temperature control unit (14) is provided with a screw column (141) beside it for shielding the screw.

8. The PTC module with bracket for a washing machine according to claim 2, characterized in that: The bracket body (1) and the air outlet (12) are arc-shaped on the side away from the PTC heating module (2).

9. The PTC module with bracket for a washing machine according to claim 8, characterized in that: The air outlet (12) is provided with a wind blocking edge (121) above the arc-shaped side, the shape of the wind blocking edge (121) is consistent with the arc-shaped side of the air outlet (12).

10. The PTC module with bracket for a washing machine according to claim 1, characterized in that: The bracket body (1) is provided with a black sponge pad (103) at the bottom.

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