CN212970147U - Electric heating device - Google Patents

Abstract

The utility model discloses an electric heating device, which comprises a heating element, a lead wire used for transmitting power to the heating element and a connecting structure for connecting the heating element and the lead wire together; the connecting structure comprises a lead-out rod, a wiring terminal and a pressing die head which are arranged at the end part of the heating body, one end of the wiring terminal is pressed at the end part of the wire core of the wire, the other end of the wiring terminal is connected with one end, far away from the heating body, of the lead-out rod in a welding mode, the pressing die head is sleeved on the lead-out rod, the wiring terminal and the wire core, and the effect of safety protection on the wire core is achieved. The utility model discloses a novel electric heating device's heat-generating body adopts new connected mode with the lead wire sinle silk, can strengthen the intensity of sinle silk for the sinle silk is difficult for splitting, reduces the potential safety hazard.

Description

Electric heating device

Technical Field

The utility model relates to a cold wind electromechanical device, concretely relates to electric heater unit.

Background

The connection mode of the heating element and the lead wire core electrically heated by the existing air cooler is as follows: the heating body is firstly connected with the leading-out rod, and then the leading-out rod is connected with the lead wire core in a direct crimping mode. By adopting the connection mode of directly crimping the leading-out rod and the lead wire core, when the wire core is pulled or bent under the action of external force, the wire core at the crimping position is easy to break, the broken position can be burnt out after long-time work, and even the result of electrical fire is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide an electric heater unit, this novel electric heater unit's heat-generating body adopts new connected mode with the lead wire sinle silk, can strengthen the intensity of sinle silk for the sinle silk is difficult for splitting, reduces the potential safety hazard.

The utility model provides a technical scheme of above-mentioned technical problem is:

an electric heating device comprises a heating body, a lead for supplying power to the heating body and a connecting structure for connecting the heating body and the lead together; the connecting structure comprises a lead-out rod, a wiring terminal and a pressing die head, wherein the lead-out rod, the wiring terminal and the pressing die head are arranged at the end part of the heating body, one end of the wiring terminal is in press-connection with the end, far away from the heating body, of the lead-out rod, the other end of the wiring terminal is connected with the end, far away from the heating body, of the lead-out rod, and the pressing die head is sleeved on the.

The working principle of the novel electric heating device is as follows:

the heating body of the electric heating device is connected with the wire through the connecting structure, and the operation is as follows: binding post's one end is connected through the mode of crimping with the sinle silk tip of wire, and binding post's the other end is connected with the one end of drawing the stick and keeping away from the heat-generating body, will draw the stick to install when on the heat-generating body, the heat-generating body is finally realized being connected through drawing stick and binding post and wire. One end of the connecting terminal is connected with the wire core of the wire in a crimping mode, and the connecting terminal and the wire core are firmly and reliably connected in the crimping mode and have good stability; simultaneously, because the stick of drawing forth, binding post and sinle silk surface cover that link together are equipped with the die head that presses, when the sinle silk receives the exogenic action and takes place to drag or when bending, the die head plays the guard action to the sinle silk, consequently the sinle silk is difficult for breaking to strengthened sinle silk and whole connection structure's intensity, improved heating device's security performance.

According to the novel preferable scheme, the leading-out rod is connected with the wiring terminal in a welding mode. The connection is realized in a welding mode, so that the leading-out rod and the wiring terminal have higher connection strength, and in addition, the welding operation is simple, convenient and quick, and the controllability is good.

According to a preferred scheme of the utility model, the heating element is a U-shaped semi-closed tubular structure, and comprises a heating tube body and connecting parts arranged at two ends of the heating tube body; the extraction rod is arranged on the connecting part. By arranging the heating body with the structure, when the heating tube body generates heat, the heating tube body has a good heat transfer effect on air flow passing through the semi-closed part of the heating tube body, so that the heating efficiency is improved; on the other hand, the connecting part is arranged, so that the heating body is connected with the leading-out rod conveniently, and the operability is improved.

The utility model discloses a preferred scheme, binding post includes the interlude, sets up interlude one end be used for with draw forth stick welded welding section and set up the crimping section of the interlude other end, the crimping section is offered the line ball hole that is used for the card to press the sinle silk along binding post axis direction. Through setting up the binding post of above-mentioned structure, binding post is when being connected with the sinle silk of wire, the sinle silk inserts the line ball hole compresses tightly crimping section and sinle silk with line ball instrument such as wire crimper to accomplish binding post and sinle silk crimping and be connected, and firm in connection is reliable.

Preferably, the length of the welding section is equal to or greater than ten millimeters. Through the welding section that sets up above-mentioned structure, when binding post with draw forth excellent electric welding connection, because the length more than or equal to ten millimeters of welding section, consequently binding post and draw forth the effective length more than or equal to ten millimeters of welding between the stick, guaranteed binding post and the joint strength who draws forth the stick.

Preferably, the material of the connecting terminal is stainless steel. The stainless steel wiring terminal has the advantages of good conductivity and welding performance and high strength, so that the connection between the leading-out rod and the lead is quite stable and reliable.

The utility model discloses a preferred scheme, draw forth the stick and include link and welding end, the welding end is provided with the welding hole along the axis direction, the welding hole with the welding section matches, and the degree of depth more than or equal to ten millimeters in welding hole, the link with the connecting portion of heat-generating body are connected. Through setting up the stick of drawing forth of above-mentioned structure, because the link is installed on the connecting portion of heat-generating body, consequently when welding end and the welding section electric welding of the binding post of crimping sinle silk are connected together, can realize being connected of heat-generating body and wire, simultaneously, because the welding section welding is in the welding hole, consequently draw forth the firm in connection reliable of stick and binding post.

The utility model discloses a preferred scheme, the material of die head is chloroprene rubber. Adopt the die head of material, on the one hand, because chloroprene rubber has good pliability, consequently the cover is established use outside the sinle silk the die head that chloroprene rubber made for the sinle silk is difficult for taking place the rupture, has better protective effect to the sinle silk, and on the other hand, the die head will draw forth stick, binding post and sinle silk and seal the inclusion, has played insulation protection's effect, has increased the security.

Compared with the prior art, the utility model following beneficial effect has:

1. the utility model discloses a novel electric heater unit's sinle silk is connected through the mode of crimping with binding post, and binding post draws forth the stick on the heat-generating body and is connected through the welded mode, and wherein sinle silk, binding post and draw forth the surface cover of excellent junction and be equipped with the die head, and the die head makes the sinle silk be difficult for taking place the rupture, has strengthened the intensity of sinle silk, and simultaneously, the die head will draw forth stick, binding post and the sealed inclusion of sinle silk, has played insulation protection's effect, has increased the security.

2. The utility model discloses a novel electric heater unit's sinle silk and binding post adopt the mode of crimping to be connected, and binding post is firm with being connected of sinle silk, and the circular telegram is stable, has improved the security performance of device.

3. The utility model discloses a novel electric heater unit's binding post adopts the welded mode and draws forth the stick and be connected, this connected mode firm in connection, stable in structure has improved the security performance of device.

Drawings

Fig. 1 is a schematic view of the electric heating device of the present invention.

Fig. 2 is an enlarged view of the connection structure of the electric heating apparatus of the present invention.

Wherein, 1, a heating element; 1-1, a heating tube body; 1-2, a connecting part; 2. a wire; 2-1, a wire core; 3. a connecting structure; 4. leading out a rod; 4-1, welding ends; 4-2, welding holes; 5. a wiring terminal; 5-1, welding section; 5-2, middle section; 5-3, a crimping section; 6. and (4) pressing a die head.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

Referring to fig. 1 to 2, an electric heating apparatus of the present invention includes a heating element 1, a wire 2 for supplying power to the heating element 1, and a connecting structure 3 for connecting the heating element 1 and the wire 2; the connecting structure 3 comprises an extraction rod 4 arranged at the end part of the heating body 1, a wiring terminal 5 and a die head 6, wherein one end of the wiring terminal 5 is in press-connection with the end part of the wire core 2-1 of the wire 2, and the other end of the wiring terminal 5 is connected with one end of the extraction rod 4 far away from the heating body 1; the die head 6 is sleeved on the leading-out rod 4, the wiring terminal 5 and the wire core 2-1, and plays a role in safety protection of the wire core 2-1; after the die head is sleeved, the lead near the die head needs to be bent back and forth for 5 times according to an angle of 90 degrees, the bending duration time is 10 seconds each time, and the back wire skin and the die head cannot crack; in addition, the two ends of the lead are ensured to be conducted, and the wire core is prevented from being broken.

Referring to fig. 1 to 2, the extraction rod 4 is connected to the connection terminal 5 by welding. Wherein, the welding of the wiring terminal 5 and the leading-out rod 4 requires full welding spots without welding beading; the connection is realized in a welding mode, so that the leading-out rod and the wiring terminal have higher connection strength, and in addition, the welding operation is simple, convenient and quick, and the controllability is good.

Referring to fig. 1 to 2, the heating element 1 is a U-shaped semi-closed tubular structure, and the heating element 1 includes a heating tube body 1-1 and connection parts 1-2 disposed at two ends of the heating tube body 1-1, and the connection parts are connected to the lead-out bars. By arranging the heating element 1 with the structure, when the heating tube body 1-1 generates heat by connecting 380V voltage to the lead wires at the two ends of the heating element 1, the heating element 1 with the structure has a good heat transfer effect on air flow passing through the semi-closed part of the heating tube body 1, and the heating efficiency is improved; on the other hand, the connecting part 1-2 is arranged, so that the heating body 1 can be conveniently connected with other devices, and the operability is improved.

Referring to fig. 2, the terminal 5 includes an intermediate section 5-2, a welding section 5-1 disposed at one end of the intermediate section 5-2 and used for welding with the lead-out bar 4, and a crimping section 5-3 disposed at the other end of the intermediate section 5-2, wherein the crimping section 5-3 is provided with a crimping hole for clamping the wire core 2-1 along an axial direction of the terminal 5. Through the wiring terminal 5 with the structure, when the wiring terminal 5 is connected with the wire core 2-1 of the wire 2, the wire core 2-1 of the wire 2 is inserted into the wire pressing hole, and the wire pressing tool such as a wire pressing pliers is used for pressing the pressing section 5-3 and the wire core 2-1 of the wire 2, so that the pressing connection of the wiring terminal 5 and the wire core 2-1 is completed, and the connection is firm and reliable.

Referring to fig. 2, the length of the welding section 5-1 is equal to or greater than ten millimeters. Through the welding section 5-1 with the structure, when the wiring terminal 5 is in electric welding connection with the leading-out rod 4, the length of the welding section 5-1 is larger than or equal to ten millimeters, so that the effective welding length between the wiring terminal 5 and the leading-out rod 4 is larger than or equal to ten millimeters, and the welding position has higher connection strength.

Referring to fig. 2, the material of the connecting terminal 5 is stainless steel. The stainless steel wiring terminal 5 has the advantages of good conductivity and welding performance and high strength, so that the stainless steel wiring terminal 5 enables the leading-out rod 4 to be connected with the lead 2 stably and reliably.

Referring to fig. 2, the lead-out rod 4 includes a connection end and a welding end 4-1, the welding end 4-1 is provided with a welding hole 4-2 along the axial direction, the welding hole 4-2 is matched with the welding section 5-1 in size, the depth of the welding hole 4-2 is not less than ten millimeters, and the connection end is connected with the connection part 1-2 of the heating element 1. By arranging the leading-out rod 4 with the structure, the connecting end is arranged on the connecting part 1-2 of the heating body 1, so that the heating body 1 can be connected with the lead 2 when the welding end 4-1 is electrically welded with the welding section 5-1 of the wiring terminal 5 which is pressed with the wire core 2-1, and meanwhile, the connection between the leading-out rod 4 and the wiring terminal 5 is firm and reliable because the welding section 5-1 is welded in the welding hole 4-2.

Referring to fig. 2, the material of the die head 6 is neoprene. By adopting the die head 6 made of the material, on one hand, the neoprene rubber has good flexibility, so that the die head 6 made of the neoprene rubber is sleeved outside the wire core 2-1, the wire core 2-1 is not easy to break, and the better protection effect is achieved on the wire core 2-1, and on the other hand, the die head 6 is used for sealing and enclosing the leading-out rod 4, the wiring terminal 5 and the wire core 2-1, so that the insulation protection effect is achieved, and the safety of the heating device is improved.

The working principle of the novel electric heating device is as follows:

the heating body 1 and the lead 2 of the electric heating device are connected together through the connecting structure 3, and the operation is as follows: one end of the connecting terminal 5 is connected with the end part of the wire core 2-1 of the wire 2 in a crimping mode, the other end of the connecting terminal 5 is connected with one end of the lead-out rod 4 far away from the heating body 1 in a welding mode, the lead-out rod 4 is installed on the heating body 1, and the heating body 1 is finally connected with the wire 2 through the lead-out rod 4 and the connecting terminal 5. One end of the wiring terminal 5 is connected with the wire core 2-1 of the wire 2 in a crimping mode, and the other end of the wiring terminal 5 is connected with the leading-out rod 4 in a welding mode, so that the connection between the wiring terminal 5 and the wire core 2-1, the connection between the wiring terminal 5 and the leading-out rod 4 are firm and reliable, and the stability is good; meanwhile, the lead-out rod 4, the wiring terminal 5 and the wire core 2-1 which are connected together are sleeved with the pressing die head 6, when the wire core 2-1 is pulled or bent under the action of external force, the pressing die head 6 plays a role in protecting the wire core 2-1, and therefore the wire core 2-1 is not prone to fracture, the strength of the wire core is enhanced, and the safety performance of the heating device is improved.

Compared with the prior art, the novel electric heating device of the embodiment has the following beneficial effects:

1. the utility model discloses a novel electric heater unit's sinle silk 2-1 is connected through the mode of crimping with binding post 5, binding post 5 is connected through the welded mode with the stick 4 of drawing forth on the heat-generating body 1, wherein sinle silk 2-1, binding post 5 and draw forth the surface cover of 4 junctions of stick and be equipped with pressure die head 6, die head 6 makes sinle silk 2-1 be difficult for taking place the rupture, the intensity of sinle silk 2-1 has been strengthened, simultaneously, press die head 6 will draw forth excellent 4, binding post 5 and sinle silk 2-1 sealed inclusion, the effect of insulating protection has been played, the security has been increased.

2. The utility model discloses a novel electric heater unit's sinle silk 2-1 is connected with binding post 5 adoption crimping's mode, and binding post 5 is firm with sinle silk 2-1's connection, and the circular telegram is stable, has improved the security performance of device.

3. The utility model discloses a novel electric heater unit's binding post 5 adopts the welded mode and draws forth excellent 4 and be connected, this connected mode firm in connection, stable in structure has improved the security performance of device.

Example 2

This example differs from example 1 in that the die head 6 may be other soft insulating material, such as nitrile rubber, which has good heat resistance and can maintain good performance at higher temperatures.

Example 3

The difference between this embodiment and embodiment 1 is that the terminal 5 may be made of other conductive and strong materials, such as copper. Copper has good electric conductivity and ductility, sets up the binding post of copper product matter, and when binding post and sinle silk crimping, the crimping is effectual, and the wiring is reliable, simultaneously, because copper has good ductility, consequently receives external force and pulls when bending, and binding post is difficult for the fracture, has guaranteed the stability of wiring.

The above is the preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims (8)

1. An electric heating device is characterized by comprising a heating body, a lead for supplying power to the heating body and a connecting structure for connecting the heating body and the lead together; the connecting structure comprises a lead-out rod, a wiring terminal and a pressing die head, wherein the lead-out rod, the wiring terminal and the pressing die head are arranged at the end part of the heating body, one end of the wiring terminal is in press-connection with the end, far away from the heating body, of the lead-out rod, the other end of the wiring terminal is connected with the end, far away from the heating body, of the lead-out rod, and the pressing die head is sleeved on the lead.

2. An electrical heating apparatus as claimed in claim 1, wherein said terminal bar is connected to said terminal by welding.

3. The electric heating device of claim 1, wherein the heating element is a U-shaped semi-closed tubular structure, the heating element comprises a heating tube body and connecting parts arranged at two ends of the heating tube body, and the extraction rod is arranged on the connecting parts.

4. The electric heating device as claimed in claim 1, wherein the terminal comprises a middle section, a welding section arranged at one end of the middle section and used for welding with the lead-out bar, and a crimping section arranged at the other end of the middle section, and the crimping section is provided with a wire pressing hole for clamping the wire pressing core along the axial direction of the terminal.

5. An electric heating device as claimed in claim 4, characterized in that the length of the welding section is ten millimeters or more.

6. An electrical heating apparatus as claimed in claim 4, wherein the terminals are made of stainless steel.

7. The electric heating device as claimed in claim 4, wherein the lead-out bar comprises a connecting end and a welding end, the welding end is provided with a welding hole along the axial direction, the welding hole is matched with the welding section, the depth of the welding hole is more than or equal to ten millimeters, and the connecting end is connected with the connecting part of the heating body.

8. An electrical heating apparatus as claimed in claim 1, wherein said die head is made of neoprene.

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