Fin type electric heater

Abstract

The utility model relates to a heater, in particular to a fin type electric heater, which comprises a heating box body, the heating piece is arranged on the heating box body; the heating piece is sleeved with the heating fins, the heating fins are stacked in the length direction of the heating piece, and a heat dissipation gap is reserved between every two adjacent heating fins. According to the finned electric heater provided by the utility model, the heating fins are directly inserted into the heating piece, and the heating fins do not need to be welded, so that the working procedures are reduced, the cost is reduced, and the whole structure is simpler.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of heaters, especially a kind of finned electric heater. BACKGROUND

[0002] The heating of electric vehicle mainly uses electric heater, such as the electric heater assembly of electric vehicle air conditioner disclosed by CN205970739U, all of the connecting pieces 112a and first heating fins 112b in the first heating unit 11 are equal in length and arranged side by side. The heating pipe 111 includes a core pipe 111a and a semiconductor ceramic heating core installed in the core pipe 111a. Each column of first heat dissipation strips 112 is provided with three parallel connecting pieces 112a, and the connecting pieces 112a are bonded with a wave-shaped first heating fin 112b between two adjacent connecting pieces 112a, which together form a first heat exchange airflow passage 113. Air passes through the first heat exchange airflow passage 113 and is heated by the first heating fin 112b and the core pipe 111a. Since the electric heater uses wave-shaped heating fins, the processing is complex, and welding with the connecting pieces on both sides is required, so the overall process is more and the cost is higher. SUMMARY

[0003] To solve the above problems of complex processing of heating fins, multiple overall processes and high cost, the utility model provides a kind of finned electric heater, and the specific technical scheme is:

[0004] A kind of finned electric heater, comprising: heating box body;Heating piece, is located on the heating box body;Heating fin, is sleeved on the heating piece, and is stacked along the length direction of the heating piece, and there is heat dissipation gap between adjacent heating fins.

[0005] Preferably, the heating piece includes: heating vertical plate;And electric heating layer, the electric heating layer is located at one side of the heating vertical plate.

[0006] Further, the heating piece further includes: protective vertical plate, the protective vertical plate is located at one side of the electric heating layer to protect the electric heating layer.

[0007] Preferably, the heating fin includes fin body, a plurality of fixed slots are provided on the fin body, side pressure parts are provided on both sides of the fixed slot, and end pressure parts are provided at both ends of the fixed slot, wherein the fixed slot is used to be inserted on the heating piece, and the side pressure part and the end pressure part are used to be pressed on the heating piece to fix the heating fin and conduct heat.

[0008] Further, a plurality of first opening grooves are provided on the side pressure part.

[0009] Furthermore, a second opening groove is provided between the end pressing part and the side pressing part.

[0010] Furthermore, positioning portions are provided at both ends of the fin body.

[0011] Furthermore, the positioning part is rolled into a circle.

[0012] Preferably, the heating chamber includes:

[0013] Box base;

[0014] The enclosure base is located on the enclosure base and has several lower fixing holes; the enclosure side plates are located on both sides of the enclosure base; and the enclosure top plate is located on the top of the enclosure side plates and has several upper fixing holes; wherein, the two ends of the heating element are respectively inserted into the lower fixing holes and the upper fixing holes.

[0015] Furthermore, the base of the box is provided with lower insert plates at both ends, the top of the box is provided with upper insert plates at both ends, and the side plates of the box are provided with connecting slots at both ends, and the lower insert plates and the upper insert plates are inserted into the connecting slots.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention provides a finned electric heater in which the heating fins are directly inserted into the heating element, eliminating the need for welding the heating fins, reducing the number of processes, lowering costs, and simplifying the overall structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this application;

[0019] Figure 2 This is a front view of this application;

[0020] Figure 3 This is a structural diagram of the heating chamber hidden in this application;

[0021] Figure 4 yes Figure 2 A magnified view of a section at point I;

[0022] Figure 5 This is a structural schematic diagram of the heating element;

[0023] Figure 6 This is a front view of the heating element;

[0024] Figure 7 This is a schematic diagram of the heating fin structure;

[0025] Figure 8 This is a front view of the heating fins;

[0026] Figure 9 is the bottom view of the heating fin;

[0027] Figure 10 is the structural schematic view of the box base;

[0028] Figure 11 is the structural schematic view of the box top base;

[0029] Figure 12 is the structural schematic view of the box side plate. DETAILED DESCRIPTION

[0030] The utility model will be further described in connection with the drawings.

[0031] As Figures 1 to 12 shown, a fin type electric heater, comprising a heating box 3, a heating piece 2, a heating fin 1, the heating piece 2 is vertically installed in the inside of the heating box 3, and multiple are arranged along the length direction of the heating box 3, for example, five are arranged, the heating fin 1 is inserted on the heating piece 2, and is arranged in stack along the length direction of the heating piece 2, and the adjacent heating fin 1 is left with heat dissipation gap.

[0032] The heating fin 1 is directly inserted on the heating piece 2, and the overall structure is simple, the heating fin 1 does not need to be welded on the heating piece 2, reduces the process step, and reduces the cost.

[0033] In order to make the structure more compact, the heating piece 2 includes a heating vertical plate 21 and an electric heating layer 22, both ends of the heating vertical plate 21 are fixed on the heating box 3, one side of the heating vertical plate 21 is connected with the electric heating layer 22, and the electric heating layer 22 can adopt electric heating wire, electric heating film or metal resistance layer. The heating vertical plate 21 is used to support the fin and the electric heating layer 22, and can simultaneously conduct heat of the electric heating layer 22 to the heating fin 1, guarantee reliable heat conduction, and then guarantee the heating effect.

[0034] In order to protect the electric heating layer 22, the heating piece 2 further includes a protection vertical plate 23, the protection vertical plate 23 is arranged on one side of the electric heating layer 22 to protect the electric heating layer 22. The electric heating layer 22 is located between the heating vertical plate 21 and the protection vertical plate 23, and forms a three-layer structure. The heating vertical plate 21 and the protection vertical plate 23 can adopt aluminum plate. Two electrodes are arranged on the electric heating layer 22, and a wiring groove is arranged on the protection vertical plate 23, the wiring groove is arranged opposite to the electrode, and wiring is facilitated.

[0035] As Figures 7 to 9As shown, the heating fin 1 comprises a fin body, a plurality of fixed insertion slots 11 are arranged on the fin body, the fixed insertion slots 11 are rectangular slots, and can be arranged in the length direction of the fin body, the two sides of the fixed insertion slot 11 are provided with a side pressing part 15, the side pressing part 15 is located on the long side of the fixed insertion slot 11, the two ends of the fixed insertion slot 11 are provided with an end pressing part 14, the end pressing part 14 is located on the short side of the fixed insertion slot 11, the end pressing part 14 and the side pressing part 15 are bent to the same side and have a certain elasticity, the end pressing part 14 and the side pressing part 15 are both bent and formed on the fin body, and are an integral structure with the fin body, which can ensure good heat conduction performance. The fixed insertion slot 11 is used for being inserted on the heating element 2, and the side pressing part 15 and the end pressing part 14 are used for being pressed on the heating element 2 to fix the heating fin 1 and conduct heat.

[0036] The fin body is made of thin aluminum plate, which has good heat conduction performance and long service life, and has a certain elasticity.

[0037] In order to improve the pressing force on the heating element 2 and ensure reliable pressing, a plurality of first open slots 12 are arranged on the side pressing part 15, the first open slots 12 extend from the end of the side pressing part 15 to the fin body, the first open slots 12 divide the relatively long side pressing part 15 into a plurality of independent side pressing plates, so that when one of the side pressing plates is deformed, it does not affect the other side pressing plates, thereby ensuring reliable connection between the side pressing part 15 and the heating element 2, and thereby ensuring reliable heat conduction.

[0038] In order to improve the elasticity of the end pressing part 14 and avoid tearing at the connection between the end pressing part 14 and the side pressing part 15 due to stress, a second open slot 13 is arranged between the end pressing part 14 and the side pressing part 15, the second open slot 13 is arranged at an angle of 45°, the second open slot 13 can avoid stress concentration and prevent the fin body from tearing, thereby ensuring the strength of the fin body.

[0039] In order to fix the spacing between the fins when the fins are stacked, form good ventilation, and avoid deformation of the end of the fin body, the two ends of the fin body are provided with a positioning part 16, the positioning part 16 of the heating fin 1 abuts against the bottom of the heating fin 1 above, thereby fixing the spacing between the heating fins 1. The positioning part 16 is a round structure, which can ensure the same height and improve the strength, thereby reducing the deformation of the two ends of the fin body.

[0040] In order to protect the fin body and avoid scratching other objects, the four corners of the fin body are provided with a rounded corner 19.

[0041] As shown in the drawings, Figures 10 to 12As shown, the heating box 3 comprises a box base 34, a box bottom plate, a box side plate 33 and a box top base 32, the box base 34 is internally provided with a control panel, the control panel is electrically connected with the electric heating layer 22 of the heating piece 2, and the box base 34 is used for being mounted on a vehicle; the box bottom base 31 is fixed on the box base 34, and five lower fixing holes 311 are arranged on the box bottom base 31 along the length direction; the box side plate 33 is mounted on both sides of the box bottom base 31; the box top base 32 is fixed on the top of the box side plate 33 and is provided with a plurality of upper fixing holes 321; wherein the two ends of the heating piece 2 are respectively inserted into the lower fixing holes 311 and the upper fixing holes 321.

[0042] In order to facilitate the assembly of the heating box 3, the two ends of the box bottom base 31 are provided with lower insertion plates 312, the two ends of the box top base 32 are provided with upper insertion plates 322, and the two ends of the box side plate 33 are provided with connecting insertion grooves 331, and the lower insertion plates 312 and the upper insertion plates 322 are inserted into the connecting insertion grooves 331.

[0043] The technical principle of the utility model is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the utility model, and cannot be interpreted as limiting the protection scope of the utility model in any way. Based on the explanation herein, the person skilled in the art can think of other specific embodiments of the utility model without creative labor, and these embodiments will fall within the protection scope of the claims of the utility model.

Claims

1. A finned electric heater characterised in that, The application relates to a heating device. The heating device comprises: a heating box (3); a heating element (2) arranged on the heating box (3); 2. The finned electric heater according to claim 1, wherein a heating fin (1) sleeved on the heating element (2) and arranged in a stacking mode along the length direction of the heating element (2), and a heat dissipation gap is arranged between adjacent heating fins (1). The heating element (2) comprises: a heating vertical plate (21); and 3. A finned electric heater according to claim 2, wherein an electric heating layer (22) arranged on one side of the heating vertical plate (21).

4. The finned electric heater according to claim 1, wherein The heating element (2) further comprises a protection vertical plate (23) arranged on one side of the electric heating layer (22) to protect the electric heating layer (22).

5. A finned electric heater according to claim 4, wherein The heating fin (1) comprises a fin body, a plurality of fixed insertion slots (11) are arranged on the fin body, side pressing portions (15) are arranged on the two sides of the fixed insertion slots (11), end pressing portions (14) are arranged at the two ends of the fixed insertion slots (11), the fixed insertion slots (11) are used for being inserted on the heating element (2), the side pressing portions (15) and the end pressing portions (14) are used for being pressed on the heating element (2) to fix the heating fin (1) and conduct heat.

6. A finned electric heater according to claim 4, wherein A plurality of first open grooves (12) are arranged on the side pressing portions (15).

7. A finned electric heater as claimed in claim 4, wherein A second open groove (13) is arranged between the end pressing portions (14) and the side pressing portions (15).

8. A finned electric heater according to claim 7, wherein Positioning portions (16) are arranged at the two ends of the fin body.

9. The finned electric heater according to claim 1 wherein, The positioning portions (16) are roll circles. The heating box (3) comprises: a box base (34); a box base (31) arranged on the box base (34) and provided with a plurality of lower fixed holes (311); a box side plate (33) arranged on the two sides of the box base (31); and a box top base (32) arranged on the top of the box side plate (33) and provided with a plurality of upper fixed holes (321); 10. A finned electric heater according to claim 9, wherein wherein the two ends of the heating element (2) are respectively inserted into the lower fixed holes (311) and the upper fixed holes (321). Lower insertion plates (312) are arranged at the two ends of the box base (31), upper insertion plates (322) are arranged at the two ends of the box top base (32), and connection insertion slots (331) are arranged at the two ends of the box side plate (33), and the lower insertion plates (312) and the upper insertion plates (322) are inserted into the connection insertion slots (331).

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