CN107676852A - A desktop household electric heater - Google Patents

Abstract

The invention discloses a table type household electric heater, which comprises a main shell, wherein an S-shaped bent electric heating rod is arranged in the main shell, two ends of the electric heating rod are fixed on the inner side wall of a left side plate of the main shell, a plurality of radiating fins are arranged in the main shell, the electric heating rod is inserted and sleeved in jacks arranged on the radiating fins, and the outer side wall of the electric heating rod is tightly attached to the inner side wall of the jacks; a plurality of vent holes are formed in the rear wall plate of the main shell, a connecting sleeve is fixed on the rear wall surface of the rear wall plate of the main shell, the fan is inserted in the connecting sleeve, a connecting block is fixed on the outer side wall of the fan, the connecting block is fixed on the inner side wall of the connecting sleeve, and the air blowing port of the fan faces the rear wall plate of the main shell; the front part of the main shell is provided with a protective cover body, and the middle part of the protective cover body is provided with a central blowing through groove. The invention can accelerate the heat diffusion, and meanwhile, the protective cover body is convenient to mount and dismount, and is convenient to clean and maintain the components in the main shell.

Description

A desktop household electric heater

Technical field:

The invention relates to the technical field of household electrical appliances, and more specifically relates to a desktop household electric heater.

Background technique:

Existing household heaters are generally heated by heating tubes, and then spread through the air to diffuse the heat to the outside to achieve heating. However, the effect is limited and the heating diffusion is slow;

Simultaneously, its installation and disassembly troubles, maintenance cleaning is not ideal.

Invention content:

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a desktop household electric heater, which can accelerate the diffusion of heat, and at the same time, the protective cover body is easy to install and disassemble, and it is convenient to clean and maintain the components in the main shell ,Very convenient.

The scheme that the present invention solves described technical problem is:

A desktop electric heater for household use, comprising a main casing, an electric heating rod bent in an S shape is arranged in the main casing, and the two ends of the electric heating rod are fixed on the inner side wall of the left side panel of the main casing On the top, a plurality of heat sinks are located in the main shell, the electric heating rod is inserted into the socket on the heat sink, and the outer wall of the electric heating rod is close to the inner wall of the socket;

A plurality of air holes are formed on the rear wall of the main housing, a connecting sleeve is fixed on the rear wall of the rear wall of the main housing, the fan is inserted into the connecting sleeve, and the outer wall of the fan is fixed with a connecting block. The connection block is fixed on the inner side wall of the connection sleeve, and the air outlet of the fan faces the rear wall of the main casing;

The front part of the main housing is provided with a protective cover body, the middle part of the protective cover body has a central air blowing groove, the mesh plate covers the central air blowing groove, and the edge of the mesh plate is fixed on the rear wall of the protective cover body.

There is a rectangular raised frame on the rear wall of the four sides of the protective cover, and a rectangular groove is formed on the rear wall of the rectangular raised frame. In the groove, the first threaded holes on the outer walls of the front of the four wall plates of the main housing are screwed with ball plungers, and the inner walls of the front of the four wall plates of the main housing have A positioning block is screwed into the second threaded hole of the ball plunger, and the steel ball of the ball plunger is nested in the concave hole on the corresponding inner wall of the rectangular groove, and the inner wall of the other side of the rectangular groove is screwed. The positioning ball-tip plunger is connected, and the steel ball of the positioning ball-tip plunger is nested in the concave hole provided on the corresponding positioning block.

The first threaded hole communicates with the corresponding second threaded hole, and the diameter of the second threaded hole is larger than that of the first threaded hole.

An insulating block is fixed on the outer wall of the left side plate of the main housing, and a control host is fixed on the left side wall of the insulating block, and the connecting wire of the electric heating rod passes through the left side plate of the main housing and is connected with the control Host electrical connection.

An outer casing is fixed on the outer wall of the left side plate of the main casing, and the control host and the heat insulation block are all located in the outer casing.

A plurality of cooling holes and a threading hole are formed on the outer casing.

The outstanding effect of the present invention is: compared with the prior art, it can speed up the diffusion of heat, and at the same time, the protective cover body is easy to install and disassemble, and it is convenient to clean and maintain the parts in the main shell, which is very convenient.

Description of drawings:

Fig. 1 is the local structure schematic diagram that the present invention removes protective cover body;

Fig. 2 is a partial sectional view of the present invention;

FIG. 3 is a partially enlarged view of FIG. 2 .

detailed description:

For the embodiment, as shown in Fig. 1 to Fig. 3, a desktop household electric heater includes a main casing 10, and an electric heating rod 11 bent in an S shape is arranged in the main casing 10, and the electric heating The two ends of the rod 11 are fixed on the inner side wall of the left side plate of the main housing 10, a plurality of cooling fins 12 are located in the main housing 10, and the electric heating rod 11 is inserted into the socket provided on the cooling fins 12. The outer wall of the heating rod 11 is close to the inner wall of the socket;

The rear wall of the main housing 10 is formed with a plurality of air holes 13, the rear wall of the main housing 10 is fixed with a connecting sleeve 14, the fan 15 is inserted in the connecting sleeve 14, and the fan 15 The outer wall is fixed with a connecting block 151, and the connecting block 151 is fixed on the inner wall of the connecting sleeve 14, and the air outlet of the fan 15 faces the rear wall of the main casing 10;

The front portion of the main housing 10 is provided with a protective cover body 20, the middle part of the protective cover body 20 has a central air blowing groove 21, the mesh plate 22 covers the central air blowing groove 21, and the edge of the mesh plate 22 is fixed on the protective cover body 20 on the rear wall.

Further, the rear wall of the four sides of the protective cover body 20 has a rectangular raised frame 23, and a rectangular groove 24 is formed on the rear wall of the rectangular raised frame 23. The four walls of the main housing 10 The front part of the plate is inserted into the rectangular groove 24, and the first threaded hole 16 provided on the outer wall of the front part of the four wall plates of the main housing 10 is screwed with a ball plunger 161. Positioning block 171 is screwed in the second threaded hole 17 on the inner side wall of the front part of the four wall plates of 10, and the steel ball of ball plunger 161 is nested on the corresponding inner side wall of rectangular groove 24. In the concave hole, the inner wall of the other side of the rectangular groove 24 is screwed with a positioning ball plunger 25, and the steel ball of the positioning ball plunger 25 is nested in the concave hole on the corresponding positioning block 171. middle.

Further speaking, the first threaded hole 16 communicates with the corresponding second threaded hole 17 , and the diameter of the second threaded hole 17 is larger than the diameter of the first threaded hole 16 .

Further, a heat insulating block 18 is fixed on the outer wall of the left side plate of the main housing 10, and a control host 19 is fixed on the left side wall of the heat insulating block 18, and the connecting wire of the electric heating rod 11 passes through the main body. The left side panel of the housing 10 is electrically connected with the control host 19 .

Further speaking, an outer casing 101 is fixed on the outer wall of the left side panel of the main casing 10 , and the control host 19 and the heat insulation block 18 are both located in the outer casing 101 .

Furthermore, a plurality of cooling holes 102 and a threading hole 103 are formed on the outer casing 101 .

In the figure, each connecting line is omitted.

Working principle: When the fan 15 is turned on, the external cold air can enter the main casing 10 and blow out after exchanging heat with the electric heating rod 11, which has good effect and high efficiency.

And its protective cover body 20 is positioned and fixed by positioning ball plunger 25 and ball plunger 161, and its effect is good, easy to install and disassemble, convenient follow-up cleaning.

Claims (6)

1. A desktop household electric heater, comprising a main housing (10), characterized in that: the main housing (10) is provided with an electric heating rod (11) bent in an S shape, and the electric heating rod The two ends of (11) are fixed on the inner side wall of the left side plate of the main housing (10), a plurality of cooling fins (12) are in the main housing (10), and the electric heating rod (11) is inserted and sleeved on the cooling fins (12) in the jack, the outer wall of the electric heating rod (11) is close to the inner wall of the jack; A plurality of ventilation holes (13) are formed on the rear wall of the main housing (10), and a connecting sleeve (14) is fixed on the rear wall of the rear wall of the main housing (10), and the fan (15) is plugged into the Covered in the connecting sleeve (14), the outer wall of the fan (15) is fixed with a connecting block (151), the connecting block (151) is fixed on the inner wall of the connecting sleeve (14), and the blowing port of the fan (15) faces the the rear wall of the main housing (10); The front part of the main housing (10) is provided with a protective cover body (20), the middle part of the protective cover body (20) has a central blowing channel (21), and the mesh plate (22) covers the central blowing channel (21). , the limit portion of net plate (22) is fixed on the rear wall surface of protective cover body (20). 2. A desktop household electric heater according to claim 1, characterized in that: the rear wall of the four sides of the protective cover body (20) has a rectangular raised frame (23), the rectangular raised frame A rectangular groove (24) is formed on the rear wall surface of the frame (23), and the front parts of the four wall panels of the main housing (10) are inserted in the rectangular groove (24), and the main housing (10) A ball plunger (161) is screwed in the first threaded hole (16) provided on the outer side walls of the front of the four wall plates, and the inner side walls of the front of the four wall plates of the main housing (10) The positioning block (171) is screwed in the second threaded hole (17) on the top, and the steel ball of the ball plunger (161) is nested in the concave hole on the corresponding inner wall of the rectangular groove (24). Among them, the inner wall of the other side of the rectangular groove (24) is screwed with a positioning ball plunger (25), and the steel ball of the positioning ball plunger (25) is nested on the corresponding positioning block (171) in the recessed hole. 3. A desktop household electric heater according to claim 2, characterized in that: the first threaded hole (16) communicates with the corresponding second threaded hole (17), and the second threaded hole The diameter of (17) is larger than the diameter of the first threaded hole (16). 4. A desktop household electric heater according to claim 1, characterized in that: a heat insulating block (18) is fixed on the outer wall of the left side plate of the main casing (10), and the heat insulating block The left side wall of (18) is fixed with control main frame (19), and the connection wire of electric heating rod (11) passes the left side plate of main casing (10) and is electrically connected with control main frame (19). 5. A desktop household electric heater according to claim 4, characterized in that: an outer casing (101) is fixed on the outer wall of the left side plate of the main casing (10), and the control host ( 19) and the heat insulating block (18) are all in the outer casing (101). 6. A desktop household electric heater according to claim 5, characterized in that: a plurality of cooling holes (102) and a threading hole (103) are formed on the outer casing (101).