WO2019196489A1

WO2019196489A1 - Electric heater and air conditioner

Info

Publication number: WO2019196489A1
Application number: PCT/CN2018/121536
Authority: WO
Inventors: 吴斌; 成伟; 徐金辉; 邓杏珍; 林肖纯; 曲德闯; 陈阵; 齐京墀; 徐华庚; 宋俊义
Original assignee: 珠海格力电器股份有限公司
Priority date: 2018-04-12
Filing date: 2018-12-17
Publication date: 2019-10-17
Also published as: CN108391329A

Abstract

An electric heater and an air conditioner. The electric heater comprises an electric heating element (10), a support, and a protective element. The support is mounted on the electric heating element (10), the support is opened thereon with a mounting groove, the protective element is disposed within the mounting groove, and a lead of the protective element is connected to a lead of the electric heating element (10) and is placed within the mounting groove. A fixed sleeve sleeves the position at which the lead of the protective element and the lead of the electric heating element (10) connect and is clamped in the mounting groove. By means of the fixed sleeve sleeving the position at which the lead of the protective element and the lead of the electric heating element (10) connect, the position at which the leads connect may be protected. By further clamping the fixed sleeve in the mounting groove, the position at which the leads connect may be prevented from shaking, thereby ensuring the connection quality of the position at which the leads connect and extending the service life of the electric heater.

Description

Electric heater and air conditioner

The present application claims priority to Chinese Patent Application No. 20110032 708 5.2, the entire disclosure of which is incorporated herein by reference.

Technical field

The present invention relates to the field of air conditioning technology, and in particular to an electric heater and an air conditioner.

Background technique

As shown in FIG. 1, the ceramic PTC electric heater used in the air conditioner is composed of a heating element 1, a left bracket 2, a right bracket 3, a temperature limiter 4, a fuse body 5, and a power supply line 6. Air conditioning or other appliances that use auxiliary electrical heating require assembly of the electrically heated body and the electrically heated bracket.

However, the current electric heating bracket does not have a good waterproof treatment, the temperature limiter uses a self-contained temperature limiter, and the lead-type temperature limiter lead is sealed with epoxy or silicone, and when the lead is shaken, the epoxy resin Or the silica gel is easy to fall off, and it is easy to cause the electric heater to be used in a harsh environment.

Summary of the invention

The embodiment of the invention provides an electric heater and an air conditioner to solve the technical problem that the electric heater has low service life in the prior art.

An embodiment of the present application provides an electric heater including: an electric heating element; a bracket mounted on the electric heating element, the bracket is provided with a mounting groove; the protection component is disposed in the mounting groove, and the lead of the protection component and the lead of the electric heating component are Connected and placed in the mounting slot; the fixing sleeve is sleeved at the connection of the lead of the protection component and the lead of the heating element, and is caught in the mounting groove.

In one embodiment, the protective element and its leads are secured within the mounting slot by a sealant package.

In one embodiment, the protection component includes: a fuse disposed in the mounting slot, the lead of the fuse is connected to the lead of the heating element, and placed in the mounting slot; the fixing sleeve includes the first fixing sleeve, the first A fixing sleeve is placed at the junction of the lead of the fuse and the lead of the electric heating element, and is caught in the mounting groove.

In one embodiment, the electric heater further includes a temperature limiter, the temperature limiter is disposed in the installation slot, the lead of the temperature limiter is connected to the lead of the electric heating element, and is placed in the installation slot; the fixed sleeve further includes the second The fixing sleeve is sleeved on the connection of the lead of the temperature limiter and the lead of the electric heating element, and is caught in the mounting groove.

In one embodiment, the mounting slot includes: a first mounting slot, the fuse and the lead thereof are disposed in the first mounting slot, the lead of the fuse is connected to the first lead of the heating element, and the first fixing sleeve is stuck in the first The second mounting slot, the temperature limiter and its lead are disposed in the second mounting slot, the lead of the thermostat is connected to the second lead of the heating element, and the second fixing sleeve is caught in the second mounting slot.

In one embodiment, the leads of the fuse are crimped to the first lead of the electric heating element, and/or the leads of the temperature limiter are crimped to the second lead of the electric heating element.

In one embodiment, the first mounting groove has a groove depth that is greater than the overall height of the fuse, and/or the second mounting groove has a groove depth that is greater than the overall height of the temperature limiter.

In one embodiment, the electric heater includes a first power cord connected to the fuse and extending from the bracket, and a second power cord connected to the temperature limiter and extending from the bracket.

In one embodiment, the bracket includes a first bracket and a second bracket, the first bracket is mounted on the first end of the electric heating element, the second bracket is mounted on the second end of the electric heating element, and the protection component and the fixing sleeve are installed in the second On the stand.

The application also provides an air conditioner comprising an electric heater, the electric heater being the electric heater described above.

In the above embodiment, the connection of the lead of the protective element and the lead of the electric heating element is covered by the fixing sleeve, and the connection of the lead can be protected. Then, the fixing sleeve is stuck in the mounting groove, so that the connection of the lead wire can be prevented from shaking, thereby ensuring the connection quality of the connection of the lead wire and prolonging the service life of the electric heater.

DRAWINGS

The accompanying drawings, which are incorporated in the claims In the drawing:

1 is a schematic structural view of a PTC electric heater in the prior art;

Figure 2 is a schematic view showing the overall structure of an embodiment of an electric heater according to the present invention;

3 is a schematic enlarged view of the second bracket of the electric heater of FIG. 2.

detailed description

In order to make the objects, technical solutions and advantages of the present invention more comprehensible, the present invention will be further described in detail with reference to the embodiments and drawings. The illustrative embodiments of the present invention and the description thereof are intended to explain the present invention, but are not intended to limit the invention.

2 shows an embodiment of an electric heater of the present invention comprising an electric heating element 10, a bracket and a protective element. The bracket is mounted on the electric heating element 10. The bracket is provided with a mounting slot, the protection component is disposed in the mounting slot, and the lead of the protection component is connected to the lead of the electric heating component 10 and placed in the mounting slot. The fixing sleeve is placed at the junction of the lead of the protection element and the lead of the heating element 10, and is caught in the mounting groove.

By applying the technical solution of the present invention, the connection between the lead of the protection element and the lead of the electric heating element 10 can be protected by the fixing sleeve, and the connection of the lead can be protected. Then, the fixing sleeve is stuck in the mounting groove, so that the connection of the lead wire can be prevented from shaking, thereby ensuring the connection quality of the connection of the lead wire and prolonging the service life of the electric heater.

As a preferred embodiment, the protective element and its leads are fixed in the mounting groove by a sealant. After being sealed and sealed, the overall waterproof performance of the mounting groove can be improved, and moisture can be prevented from eroding the protective element or the electric heating element 10 through the mounting groove in a harsh environment. Optionally, the encapsulation package can be packaged in a high temperature silicone package or epoxy.

As shown in FIG. 3, as an optional embodiment, the protection component includes a fuse 30, the fuse 30 is disposed in the mounting slot, and the lead of the fuse 30 is connected to the lead of the electric heating component 10 and placed in the mounting slot. . The fixed sleeve includes a first fixed sleeve 40 that fits over the connection of the lead of the fuse 30 to the lead of the electric heating element 10 and is caught in the mounting groove. The connection between the lead of the fuse 30 and the lead of the electric heating element 10 can be fixed and protected by the first fixing sleeve 40 to ensure the connection quality of the connection of the lead.

As a more preferred embodiment, as shown in FIG. 3, the electric heater further includes a temperature limiter 50. The temperature limiter 50 is disposed in the mounting slot, and the lead of the temperature limiter 50 is connected to the lead of the electric heating element 10. And placed in the installation slot. The fixing sleeve further includes a second fixing sleeve 60 which is sleeved at the junction of the lead of the temperature limiter 50 and the lead of the electric heating element 10 and is caught in the mounting groove. The connection between the lead of the temperature limiter 50 and the lead of the electric heating element 10 can be fixed and protected by the second fixing sleeve 60 to ensure the connection quality of the connection of the lead. Optionally, the temperature limiter 50 can be a cylindrical temperature limiter or a square temperature limiter.

In the technical solution of the embodiment, as shown in FIG. 3, the mounting slot includes a first mounting slot 221 and a second mounting slot 222. The fuse 30 and its lead are disposed in the first mounting groove 221, and the lead of the fuse 30 is connected to the first lead of the electric heating element 10, and the first fixing sleeve 40 is caught in the first mounting groove 221. The temperature limiter 50 and its lead are disposed in the second mounting groove 222, the lead of the temperature limiter 50 is connected to the second lead of the electric heating element 10, and the second fixed sleeve 60 is caught in the second mounting groove 222. The fuse 30 and the temperature limiter 50 are respectively installed in the two mounting grooves, which is more convenient for fixing and waterproofing. Optionally, the lead of the fuse 30 is pressure-bonded to the first lead of the electric heating element 10, and the lead of the temperature limiter 50 is crimped to the second lead of the electric heating element 10. Thereafter, the first lead crimping joint and the second lead crimping joint are fixed and protected using the first fixing sleeve 40 and the second fixing sleeve 60, respectively.

As a preferred embodiment, in the technical solution of the embodiment, the groove depth of the first mounting groove 221 is greater than the overall height of the fuse 30, and the groove depth of the second mounting groove 222 is greater than the overall height of the temperature limiter 50. In this way, the fuse 30 and the temperature limiter 50 can be sufficiently encapsulated to improve waterproof performance. Preferably, the groove depth of the first mounting groove 221 is greater than or equal to 5 mm of the overall height of the fuse 30, and the groove depth of the second mounting groove 222 is greater than or equal to 5 mm of the overall height of the temperature limiter 50. As shown in FIG. 3, in the technical solution of the embodiment, the first mounting slot 221 and the second mounting slot 222 are U-shaped slots.

As shown in FIG. 3, in the technical solution of the embodiment, the electric heater includes a first power line 71 and a second power line 72. The first power line 71 is connected to the fuse 30 and protrudes from the bracket. The second power cord 72 is coupled to the temperature limiter 50 and extends from the bracket. In use, the first power line 71 and the second power line 72 are used to connect a power source.

As shown in FIG. 2, in the technical solution of the embodiment, the bracket includes a first bracket 21 and a second bracket 22, the first bracket 21 is mounted on the first end of the electric heating element 10, and the second bracket 22 is mounted on the electric heating element 10. The second end of the protection element and the fixing sleeve are mounted on the second bracket 22. The first bracket 21 only functions to fix the electric heating element 10, and the fuse 30 and the first fixed sleeve 40, the temperature limiter 50 and the temperature limiter 50 are mounted on the second bracket 22, and the second bracket 22 is In addition to the fixed installation of the electric heating element 10, the other electrical components of the electric heater are also installed.

As can be seen from the above, the electric heating element 10 of the present invention can be adapted to the following environments:

1. It can be used normally under the condition of high humidity and water contact;

2. Use in places with high dust concentration;

3. Use in places with high concentration of combustible gas.

The present invention also provides an air conditioner comprising the above-described electric heater. With the above air conditioner of the electric heater, the electric heater has a longer service life, and the overall stability of the air conditioner is improved.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various changes and modifications may be made to the embodiments of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

An electric heater, comprising:

Electric heating element (10);

a bracket mounted on the electric heating element (10), the bracket is provided with a mounting groove;

a protection element disposed in the mounting groove, a lead of the protection element is connected to a lead of the electric heating element (10), and is placed in the mounting groove;

A fixing sleeve is fitted over the connection of the lead of the protection element to the lead of the electric heating element (10) and is caught in the mounting groove.
The electric heater according to claim 1, wherein said protective member and its lead are fixed in said mounting groove by a sealant.
The electric heater according to claim 2, wherein said protection element comprises: a fuse (30), said fuse (30) being disposed in said mounting groove, said fuse (30) a lead wire is connected to the lead of the electric heating element (10) and placed in the mounting groove;

The fixing sleeve includes a first fixing sleeve (40), and the first fixing sleeve (40) is sleeved at a joint of a lead of the fuse (30) and a lead of the electric heating element (10), And stuck in the installation slot.
The electric heater according to claim 3, wherein said electric heater further comprises a temperature limiter (50), said temperature limiter (50) being disposed in said mounting groove, said temperature limiter a lead of (50) is connected to the lead of the electric heating element (10) and placed in the mounting groove;

The fixing sleeve further includes a second fixing sleeve (60), and the second fixing sleeve (60) is sleeved on the lead of the temperature limiter (50) and the lead of the electric heating element (10) The joint is caught in the mounting groove.
The electric heater according to claim 4, wherein said mounting groove comprises:

a first mounting groove (221), the fuse (30) and its lead are disposed in the first mounting groove (221), a lead of the fuse (30) and a first part of the electric heating element (10) a lead connection, the first fixing sleeve (40) is stuck in the first mounting groove (221);

a second mounting slot (222), the temperature limiter (50) and its lead are disposed in the second mounting slot (222), the lead of the temperature limiter (50) and the electric heating element (10) The second lead wire is connected, and the second fixing sleeve (60) is caught in the second mounting groove (222).
The electric heater according to claim 5, characterized in that the lead of the fuse (30) is crimped to the first lead of the electric heating element (10), and/or the temperature limiter (50) The lead wire is crimped to the second lead of the electric heating element (10).
The electric heater according to claim 5, wherein the first mounting groove (221) has a groove depth greater than an overall height of the fuse (30), and/or the second mounting groove (222) The groove depth is greater than the overall height of the temperature limiter (50).
The electric heater according to claim 4, wherein said electric heater comprises: a first power supply line (71) connected to said fuse (30) and extending from said bracket;

A second power cord (72) is coupled to the temperature limiter (50) and extends from the bracket.
The electric heater according to claim 1, wherein the bracket comprises a first bracket (21) and a second bracket (22), and the first bracket (21) is mounted on the electric heating element (10) The first end of the second bracket (22) is mounted on the second end of the electric heating element (10), and the protection element and the fixing sleeve are mounted on the second bracket (22).
An air conditioner comprising an electric heater, characterized in that the electric heater is the electric heater according to any one of claims 1 to 9.