Heater

Abstract

An embodiment of the present invention discloses a novel heater, which includes a heating pipe, a body and two end covers. The body includes an inner and an outer water channel. The heating pipe is arranged between the inner and outer water channels of the body. Both the outer water channel and the inner water channel are divided into m heat dissipation cavities by m water separation rib positions. The inclination angles of the water separation rib positions of the outer water channel and the inner water channel from one end of the body to the other end are the same. m reversing grooves are provided on the end covers at both the left and right ends, and the reversing grooves at both ends respectively communicate with the heat dissipation cavities of the outer water channel and the inner water channel at both ends in a one-to-one correspondence. An outlet and an inlet are provided on the end cover at one end of the body, and the outlet and the inlet respectively communicate with the heat dissipation cavities of the outer water channel and the inner water channel at the same position. The present invention fundamentally solves the problem of dry burning of the heating pipe and has a significant impact on the application of thick film heating in the industry.

Description

Technical Field

[0001] The present invention relates to the technical field of thick film heating, and particularly to a heater. Background Art

[0002] Currently, heaters are mainly divided into two types: PTC heating and thick film heating. Thick film heating has the advantages of rapid heating, small volume, high power density, and low cost.

[0003] The problem of thick film heating lies in the difficulty of solving the dry burning problem. When there is liquid leakage or air trapped in the heating water channel, due to the very high power density of the thick film, local heat cannot be transferred out, and it is very easy to occur the phenomenon that the thick film resistor is burned out due to excessive temperature. Summary of the Invention

[0004] The technical problem to be solved by the embodiments of the present invention is to provide a heater to avoid the phenomenon that the thick film resistor is burned out due to excessive temperature.

[0005] To solve the above technical problem, an embodiment of the present invention provides a heater, including a heating tube, and further including a tubular body and two end caps respectively arranged at the left and right ends of the body. The body includes an inner and an outer water channel, and the heating tube is arranged between the inner and outer water channels of the body; both the outer water channel and the inner water channel are divided into m heat dissipation cavities by m water blocking rib positions, and the water blocking rib positions of the outer water channel and the inner water channel have the same inclination angle from one end of the body to the other end; m portions of commutation grooves are opened on the end caps at both ends, and the commutation grooves at both ends respectively communicate with the heat dissipation cavities of the outer water channel and the inner water channel at both ends in a one-to-one correspondence; an outlet and an inlet are arranged on the end cap at one end of the body, and the outlet and the inlet respectively communicate with the heat dissipation cavities of the outer water channel and the inner water channel at the same position; after the coolant enters the inlet, it switches between the inner and outer layers through the commutation groove every time it finishes passing through one heat dissipation cavity until both the inner and outer layers have completed one circle; m = 2k + 1, k ∈ N+, and N is the set of natural numbers.

[0006] Further, both the heat dissipation cavities of the outer water channel and the inner water channel are divided into n heat dissipation chambers by n - 1 water blocking rib positions, and the heat dissipation chambers in each heat dissipation cavity are sequentially communicated end to end, and n = 2x + 1, x ∈ N.

[0007] Further, the inclination angle of the water blocking rib position from one end of the body to the other end is 360 / mn degrees, and the inclination directions of the water blocking rib positions of the inner and outer water channels are opposite.

[0008] The beneficial effects of the present invention are as follows: The present invention can be installed at any angle. When liquid leakage occurs at the inlet / outlet or there is air in the water channel of the heater, at least one layer of the inner and outer water channels at any position of the heating pipe must have coolant to dissipate heat for the heating pipe and prevent dry burning. When abnormal situations such as liquid leakage occur in the water channel of the heater of the present invention, since the heat exchange area between the coolant and the body decreases, the temperature of the heater of the present invention will rise. By detecting the temperature of the heater, abnormal situations can be identified and reported to the system for countermeasures. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is the three-dimensional structure diagram of the heater according to Embodiment 1 of the present invention.

[0010] Figure 2 is the side view of the heater according to Embodiment 1 of the present invention.

[0011] Figure 3 is Figure 2 the cross-sectional view at D-D in

[0012] Figure 4 is Figure 2 the cross-sectional view at B-B in

[0013] Figure 5 is the front view of the heater according to Embodiment 1 of the present invention.

[0014] Figure 6 is Figure 5 the cross-sectional view at A-A in

[0015] Figure 7 is Figure 5 the side view of the heater after being cut and flattened along A-A in

[0016] Figure 8 is Figure 7 the developed view at G-G in

[0017] Figure 9 is Figure 7 the developed view at E-E in

[0018] Figure 10 is Figure 7 the developed view at F-F in

[0019] Figure 11 is Figure 7 the developed view at H-H in

[0020] Figure 12 is the three-dimensional structure diagram of the heater according to Embodiment 2 of the present invention.

[0021] Figure 13 is the side view of the heater according to Embodiment 2 of the present invention.

[0022] Figure 14 is Figure 13 The cross-sectional view at C-C in

[0023] Figure 15 is Figure 13 The cross-sectional view at B-B in

[0024] Figure 16 The front view of the heater in Embodiment 2 of the present invention.

[0025] Figure 17 is Figure 16 The cross-sectional view at A-A in

[0026] Figure 18 is Figure 16 The side view of the heater after being unfolded along the section at A-A in

[0027] Figure 19 is Figure 18 The unfolded view at G-G in

[0028] Figure 20 is Figure 18 The unfolded view at E-E in

[0029] Figure 21 is Figure 18 The unfolded view at F-F in

[0030] Figure 22 is Figure 18 The unfolded view at H-H in

[0031] Figure 23 The front view of the heater in Embodiment 2 of the present invention.

[0032] Figure 24 The three-dimensional structure diagram of the body in Embodiment 2 of the present invention. Specific embodiments

[0033] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0034] In the embodiments of the present invention, if there are directional indications (such as up, down, left, right, front, back...), they are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, in the present invention, descriptions such as "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0036] Please refer to Figures 1 to 24 , the heater of the embodiment of the present invention includes a heating tube 30, a body 10, and two end caps.

[0037] The body 10 is tubular. The two end caps 20 are respectively arranged at the left and right ends of the body 10. The body 10 includes an outer water channel 12 and an inner water channel 11. The heating tube 30 is arranged between the inner and outer water channels of the body 10. The outer water channel 12 and the inner water channel 11 wrap the heating tube 30 inside, that is, there are water channels on both the inner and outer layers of the heating tube 30. During specific implementation, the heating tube 30 is sealed at the position between the outer water channel 12 and the inner water channel 11 by potting heat-conducting glue.

[0038] Both the outer water channel 12 and the inner water channel 11 are divided into m heat dissipation cavities by m water-blocking rib positions 13, and the inclination angles of the water-blocking rib positions 13 of the outer water channel 12 and the inner water channel 11 from one end to the other end of the body 10 are the same. m arc-shaped reversing grooves 21 are provided on the end caps 20 at both ends. The reversing grooves 21 at both ends respectively communicate with the heat dissipation cavities of the outer water channel 12 and the inner water channel 11 at both ends in a one-to-one correspondence, that is, the m reversing grooves 21 at the left end respectively communicate with the heat dissipation cavities of the outer water channel 12 and the inner water channel 11 at the corresponding positions at the left end, and the m reversing grooves 21 at the right end respectively communicate with the heat dissipation cavities of the outer water channel 12 and the inner water channel 11 at the corresponding positions at the right end. m = 2k + 1, k ∈ N+, and N is the set of natural numbers.

[0039] An outlet 23 and an inlet 22 are provided on the end cap 20 at one end of the body 10, and the outlet 23 and the inlet 22 respectively communicate with the heat dissipation cavities of the outer water channel 12 and the inner water channel 11 at the same position. During specific implementation, the positions and shapes of the inlet 22 and the outlet 23 can be adjusted according to the actual product. After the coolant enters the inlet 22, it switches between the inner and outer layers once through the reversing groove 21 every time it finishes walking through one heat dissipation cavity (that is, 1 / m of the inner or outer water channels), and flows out from the outlet 23 until both the inner and outer layers have completed one circle (at this time, the coolant has walked 2 circles relative to the heating tube 30, that is, in the first circle, it has walked a part of the inner and outer layers; in the second circle, it has walked the remaining part of the inner and outer layers).

[0040] As an implementation manner, in order to increase the heat exchange area, the heat dissipation cavities of both the outer water channel 12 and the inner water channel 11 are divided into n heat dissipation chambers by n - 1 water-blocking rib positions 13, and the heat dissipation chambers in each heat dissipation cavity are connected end to end in sequence, n = 2x + 1, x ∈ N.

[0041] As an implementation manner, the inclination angle of the water-blocking rib 13 from one end to the other end of the body 10 is 360 / (m*n) degrees, and the inclination directions of the water-blocking ribs 13 of the inner and outer water channels 12 are opposite. The inclination angles of the water-blocking ribs 13 in Embodiment 1 and Embodiment 2 are as Figure 10 and Figure 11 shown.

[0042] Embodiment 1: When m = 3 and n = 1, the heater structure is as Figures 1 to 11 shown. Embodiment 2: When m = 3 and n = 5, the heater structure is as Figures 12 to 22 shown. In the figure, ① to ⑪ indicate the sequence of the coolant flow direction.

[0043] The present invention has a high heat exchange efficiency, enabling the heat of the heating pipe 30 to be quickly and efficiently transferred to the coolant; at the same time, this water channel structure fundamentally solves the problem of dry burning of the heating pipe 30, which has a significant impact on the application of thick film heating in the industry.

[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalent scope.

Claims

1. A heater, comprising a heating tube, characterized in that, It further includes a tubular body and two end caps respectively provided at the left and right ends of the body. The body includes an inner and an outer water channel layer, and the heating tube is disposed between the inner and outer water channel layers of the body; both the outer water channel layer and the inner water channel layer are divided into m heat dissipation chambers by m water separation rib positions, and the water separation rib positions of the outer water channel layer and the inner water channel layer have the same inclination angle from one end of the body to the other end; m portions of reversing grooves are provided on each of the left and right end caps, and the reversing grooves at both ends respectively communicate with the heat dissipation chambers of the outer water channel layer and the inner water channel layer at both ends in a one-to-one correspondence; an outlet and an inlet are provided on the end cap at one end of the body, and the outlet and the inlet respectively communicate with the heat dissipation chambers of the outer water channel layer and the inner water channel layer at the same position; after the coolant enters the inlet, it switches between the inner and outer layers once through the reversing groove every time it passes through one heat dissipation chamber until both the inner and outer layers have completed one circle; m = 2k + 1, k ∈ N+, and N is the set of natural numbers.

2. The heater according to claim 1, characterized in that, The heat dissipation chambers of the outer water channel layer and the inner water channel layer are each divided into n heat dissipation compartments by n - 1 water separation rib positions, and the heat dissipation compartments in each heat dissipation chamber communicate end to end in sequence, and n = 2x + 1, x ∈ N.

3. The heater according to claim 2, characterized in that, The inclination angle of the water separation rib position from one end of the body to the other end is 360 / mn degrees, and the inclination directions of the water separation rib positions of the inner and outer water channel layers are opposite.

Images