Heating module

Abstract

The utility model discloses a heating module which comprises a base, a mounting groove is arranged on one side of the base, a heating unit is embedded in the mounting groove, a baffle matched with the heating unit for heat conduction is arranged in the mounting groove, a conductive piece is arranged on the base, one end of the conductive piece is arranged in the mounting groove in a penetrating mode and connected with the heating unit in a matched mode, and the other end of the conductive piece is connected with the heating unit. One side of the base is further provided with a heat conduction ring matched with the baffle for heat conduction, the heat conduction ring and the base are connected and fixed through a connecting component, the connecting component comprises a supporting part and two connecting parts connected to the upper end and the lower end of the supporting part respectively, and the supporting part and the two connecting parts are connected through the baffle. The supporting part is arranged in an inner hole of the heat conducting ring in a penetrating mode and matched with the inner hole wall of the heat conducting ring for supporting in a contact mode, and the two connecting parts are fixedly connected with the upper end and the lower end of the base in a matched mode. The heating module is few in parts, simple in structure and convenient to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of mosquito killers or aroma diffusers, and in particular to a heating module. Background Art

[0002] The heating module is an important component of the electric mosquito-repellent incense burner or the incense fumigator, and usually works in conjunction with the volatilization rod of the electric mosquito-repellent incense burner or the incense fumigator. It can heat the volatilization rod soaked in liquid, thereby improving the volatilization effect of the liquid.

[0003] The Chinese utility model patent discloses a heating element for an electric mosquito coil (CN218499868U), comprising a bracket and a heat-conducting member, wherein the bracket is provided with a receiving cavity, a heating unit is provided in the receiving cavity, two pins are provided on the bracket, positioning plates are provided on the two pins respectively, the positioning plates are provided in the receiving cavity, the heating unit is sandwiched between the positioning plates on the two pins, a blocking cover is provided on the receiving cavity, the heat-conducting member comprises a surrounding portion provided in an annular shape and a connecting portion for pressing the blocking cover on the receiving cavity, the heating unit is provided in a square shape, the heating unit is gap-matched with the side wall of the receiving cavity, the blocking cover is provided with a surrounding edge along the circumferential direction, and the surrounding edge is gap-matched with the heating unit. Its working principle is: when the heating unit is energized, heat is generated, and the heat is conducted to the heat-conducting member through the blocking cover, so as to heat the volatilizing rod inserted in the surrounding portion thereof, thereby improving the volatilization effect of the liquid impregnated in the volatilizing rod.

[0004] However, the above patent solution has the following defects:

[0005] (1) The surrounding part and the connecting part of the heat conductor are integrally stamped and formed from a piece of metal plate. The surrounding part is formed by two extensions of the metal plate. The ends of the two extensions are close together, and there is a certain gap, which makes the structural strength of the surrounding part weak and easily deformed by external forces. In order to improve the strength of the surrounding part, higher requirements are placed on the selection of materials and thickness. Moreover, due to the existence of a certain gap, the heat transferred from the heating unit to the heat conductor will release heat in the two extensions, resulting in temperature deviation on the surrounding part of the heat conductor;

[0006] (2) The connection part of the heat conductor is connected to the bracket by a snap-fit ​​method, which has a weak connection reliability and the connection part is easily detached from the bracket due to external force;

[0007] (3) In the above patent solution, in order to improve the anti-creeping performance, the baffle has a surrounding edge arranged along the circumference. Correspondingly, a notch is formed in the middle of the surrounding edge for inserting a positioning piece of the pin. The positioning piece achieves heat conduction by contacting the bottom inner wall of the notch. In order to ensure the heat transfer effect, the bottom inner wall of the notch is required to be as flat and smooth as possible. The baffle is usually made of ceramic material, which has high requirements on the manufacturing process and has a high manufacturing cost. Summary of the invention

[0008] The utility model provides a heating module which can be applied to a mosquito killer or an aromatherapy device, wherein a heat-conducting ring is installed and fixed by a separately arranged connecting component, which is beneficial to the processing and manufacturing of the heat-conducting ring.

[0009] The utility model provides a heating module, including a base, a mounting groove is provided on one side of the base, a heating unit is embedded in the mounting groove, the heating unit can adopt a PTC thermistor, a baffle is provided in the mounting groove for heat conduction with the heating unit, a conductive member is provided on the base, two conductive members are provided, one end of the conductive member includes a conductive contact portion, the conductive contact portions at one end of the two conductive members are respectively pressed and contacted with the inner and outer sides of the heating unit, the other ends of the two conductive members are penetrated from the other side of the base and include a wiring portion, one side of the base is also provided with a heat-conducting ring for heat conduction with the baffle, the heat-conducting ring includes an inner hole for inserting a volatilizing rod, the heat-conducting ring and the base are connected and fixed by a connecting component, the connecting component includes a supporting portion and two connecting portions respectively connected to the upper and lower ends of the supporting portion, the supporting portion is penetrated in the inner hole of the heat-conducting ring and is contacted and supported with the inner hole wall of the heat-conducting ring, and the two connecting portions are respectively connected and fixed with the upper and lower ends of the base. Therefore, the heat conducted from the heating unit will be stored in two layers, the heat-conducting ring and the connecting member, which can not only improve the heat storage performance of the heating module, but also suppress the heat release from the heat-conducting ring and reduce the temperature deviation of the heating module.

[0010] Furthermore, the heat-conducting ring is composed of a first straight plate, two second straight plates and a connecting plate, the first straight plate and the second straight plate are both flat plate-like structures, the inner and outer sides of the first straight plate are respectively in contact with the support part and the baffle of the connecting member, the first straight plate of the plate-like structure can improve the contact and matching effect with the support part and the baffle, one end of the two second straight plates is respectively vertically connected to the two ends of the first straight plate, one end of the two second straight plates is respectively connected to the two ends of the connecting plate, and the two sides of the support part are connected with the first limiting parts respectively cooperating with the inner sides of the two second straight plates to limit the position, so as to limit the relative displacement of the support part and the heat-conducting ring in the horizontal direction and avoid the shaking of the heat-conducting ring. Since the supporting part of the connecting member is arranged in the inner hole of the heat-conducting ring, in order to reduce the occupation of the inner hole space of the heat-conducting ring, improve the contact and matching effect with the first straight plate, and improve the heating effect on the volatilizing stick, the supporting part of the connecting member preferably adopts a plate-like structure and is made of a heat-conducting material.

[0011] Furthermore, the upper and lower ends of the support part of the connecting member are provided with second limiting parts that cooperate with the upper and lower ends of the first straight plate to abut and limit the position. Through the abutment and cooperation between the second limiting part and the upper and lower ends of the first straight plate, the vertical relative displacement of the support part and the thermal conductive ring can be limited, thereby avoiding the shaking of the thermal conductive ring.

[0012] Furthermore, the first straight plate is embedded in the mounting groove, making the overall structure of the heating module more compact.

[0013] Furthermore, the upper and lower side edges of the groove of the installation groove are provided with first recesses for the upper and lower ends of the support part to be respectively embedded, so that the support part can be embedded in the installation groove, further making the overall structure of the product more compact. In addition, the side wall of the first recess can also cooperate with the support part to limit the position, thereby improving the positioning effect of the support part.

[0014] Furthermore, a second recess for the second limiting portion of the support portion to be embedded is provided in the first recess, so that the second limiting portion of the support portion can be embedded in the second recess, making the overall structure more compact.

[0015] Furthermore, the connecting portion includes a laterally extending support arm, a card slot is provided at the end of the support arm, slots for the support arm to be embedded are provided at the upper and lower ends of the base, a boss is provided at the bottom of the slot for contact and support with the support arm, the slot has two side walls for limiting the position with the two sides of the support arm, and the connection effect of the connecting portion can be improved by the limiting cooperation between the side walls of the slot and the support arm, a wedge-shaped block is provided on the boss for locking and positioning with the card slot of the support arm to facilitate the insertion and installation of the support arm, and the end of the support arm includes a bent portion for limiting the position with the rear side of the boss.

[0016] During installation, the support arm is inserted along the side wall and the boss of the slot, and the elastic deformation ability of the support arm's own material is used to make the slot and the wedge-shaped block align and engage, and then pressure is applied to the end of the support arm to deform and bend it to form the bending portion. The formed bending portion and the rear side of the boss cooperate to limit the movement of the support arm in the removal direction, thereby improving the reliability of the connection.

[0017] Furthermore, the rear side wall of the boss is inclined. When the end of the support arm is bent, the inclined rear side wall can cooperate with the end of the support arm to limit the position, so that the end of the support arm can be naturally bent to an oblique bending angle.

[0018] Furthermore, the mounting groove includes a first mounting groove and a second mounting groove, the first mounting groove has a smaller width than the second mounting groove, and an annular step surface is provided at the connection between the first mounting groove and the second mounting groove, the heating unit is embedded in the first mounting groove, an elastic component is provided between the bottom inner wall of the first mounting groove and the heating unit, the baffle is embedded in the second mounting groove and cooperates with the step surface to limit the position, the baffle is pressed and contacted on the step surface by the fastening action of the connecting component, and the close contact and cooperation between the heating unit and the baffle is maintained by the elastic component, the baffle is a flat plate-like structure, one side of the baffle cooperates with the step surface to limit the position and cooperates with the heating unit for heat conduction, and the other side of the baffle cooperates with the heat-conducting ring for contact and heat conduction, and the baffle is made of ceramic material.

[0019] Furthermore, the heat-conducting ring is formed by cutting a pipe made by a drawing process. The heat-conducting ring adopts this process to improve the processing accuracy of the heat-conducting ring and reduce the manufacturing cost. The processed heat-conducting ring is integrally formed without gaps, is not easily deformed by external forces, has better structural strength, and can evenly heat the volatilizing stick because the temperature deviation of the heat-conducting ring can be reduced, so as to achieve stable volatilization of the effective ingredients or flavors.

[0020] The beneficial effects of the utility model are as follows: the heat-conducting ring and the connecting member in the utility model are two separate parts, and the heat-conducting ring realizes a reliable connection with the base by cooperating with the connecting member. The overall structure is simple and compact, and the assembly is convenient. Since the heat-conducting ring can be processed and manufactured separately, it is not subject to the stamping process, which is beneficial to improving its structural strength and also beneficial to improving the temperature stability of the heating module. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The structure of the embodiment of the utility model Figure 1 ;

[0022] Figure 2 The structure of the embodiment of the utility model Figure 2 ;

[0023] Figure 3 The structure of the embodiment of the utility model is decomposed Figure 1 ;

[0024] Figure 4 The structure of the embodiment of the utility model is decomposed Figure 2 ;

[0025] Figure 5 It is a cross-sectional view along the center line of an embodiment of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the upper part of the base in the embodiment of the utility model;

[0027] Figure 7 It is a structural schematic diagram of the lower part of the base in the embodiment of the utility model;

[0028] Figure 8 Schematic diagram of the installation structure of the connecting member and the heat conducting ring in the embodiment of the utility model Figure 1 ;

[0029] Fig. 9 Schematic diagram of the installation structure of the connecting member and the heat conducting ring in the embodiment of the utility model Figure 2 ;

[0030] Fig.10 The structure of the heat conducting ring in the embodiment of the utility model is Figure 1 ;

[0031] Fig.11 The structure of the heat conducting ring in the embodiment of the utility model is Figure 2 ;

[0032] Fig.12 It is a structural diagram of the connecting component in the embodiment of the utility model. DETAILED DESCRIPTION

[0033] The implementation of the heating module of the utility model is as follows Figure 1-12As shown: it includes a base 1, a mounting groove 10 is provided on one side of the base 1, a heating unit 2 is embedded in the mounting groove 10, the heating unit 2 can adopt a PTC thermistor, a baffle 3 is provided in the mounting groove 10 for heat conduction with the heating unit 2, a conductive member 4 is provided on the base 1, and there are two conductive members 4, one end of the conductive member 4 includes a conductive contact portion 41, and the conductive contact portions 41 at one end of the two conductive members 4 are respectively pressed and contacted with the inner and outer sides of the heating unit 2 to achieve electrical connection with the heating unit 2 The other ends of the two conductive members 4 are inserted from the other side of the base 1 and include a wiring portion 42 for conductive connection with an external circuit. The heating unit 2 transfers heat to the baffle 3 by pressing and contacting the conductive contact portion 41 on the outside thereof (corresponding to the notch direction of the mounting groove 10). A heat-conducting ring 5 is also provided on one side of the base 1 for contacting and conducting heat with the baffle 3. The heat-conducting ring 5 includes an inner hole 50 for inserting a volatilizing rod. The heat-conducting ring 5 and the base 1 are connected and fixed by a connecting member 6. Due to the connection and fixation, the heat transferred from the heating unit 2 will be stored in the two layers of the heat-conducting ring 5 and the connecting member 6, which can improve the heat storage performance of the heating module and suppress the heat release from the heat-conducting ring 5 to reduce the temperature deviation of the heating module.

[0034] like Figure 5 , 8 As shown in Figures 11, the connecting member 6 includes a supporting portion 61 and two connecting portions 62 respectively connected to the upper and lower ends of the supporting portion 61. The supporting portion 61 is inserted into the inner hole 50 of the heat-conducting ring 5 and is supported by the inner hole wall of the heat-conducting ring 5. The two connecting portions 62 are respectively connected and fixed to the upper and lower ends of the base 1. When the two connecting portions 62 are connected to the upper and lower ends of the base 1, the heat-conducting ring 5, the baffle 3, the heating unit 2 and the conductive contact portion 41 can be kept in a state of pressed contact through the supporting portion 61.

[0035] like Figures 8 to 11As shown, the heat-conducting ring 5 is composed of a first straight plate 51, two second straight plates 52 and a connecting plate 53 connected around each other. The first straight plate 51 and the second straight plate 52 are both flat plate-like structures. The inner and outer sides of the first straight plate 51 are respectively in contact with the support portion 61 and the baffle 3 of the connecting member 6. The first straight plate 51 of the plate-like structure can improve the contact and matching effect with the support portion 61 and the baffle 3, and can improve the heat conduction and support effect. One end of the two second straight plates 52 is respectively vertically connected to the two ends of the first straight plate 51, and one end of the two second straight plates 52 is respectively connected to the two ends of the connecting plate 53. In this embodiment, the connecting plate 53 adopts an arc-shaped structure, which is more beautiful in appearance and can also improve the heat transfer effect. The two sides of the support portion 61 are connected with the first limiting portions 611 respectively cooperating with the inner sides of the two second straight plates 52 to limit the position, so as to limit the relative displacement of the support portion 61 and the heat-conducting ring 5 in the lateral direction and prevent the heat-conducting ring 5 from shaking. The first limiting portion 611 is formed by bending and extending the edges of the two sides of the support portion. Since the support portion 61 of the connecting member 6 is arranged in the inner hole of the heat-conducting ring 5, in order to reduce the space occupied by the inner hole 50 of the heat-conducting ring 5, improve the contact and matching effect with the first straight plate 51, and improve the heating effect on the volatilizer rod, the support portion 61 of the connecting member 6 preferably adopts a plate-like structure and is made of heat-conducting material.

[0036] The upper and lower ends of the support portion 61 of the connecting member 6 are both provided with second limiting portions 612 that cooperate with the upper and lower ends of the first straight plate 51 to abut and limit the position. Through the abutment and cooperation between the second limiting portion 612 and the upper and lower ends of the first straight plate 51, the vertical relative displacement of the support portion 61 and the thermal conductive ring 5 can be limited to prevent the thermal conductive ring 5 from shaking.

[0037] like Figure 2 , Figure 5 As shown, the first straight plate 51 is embedded in the mounting groove 10, making the overall structure of the heating module more compact.

[0038] like Figure 6 , Figure 7 As shown, the upper and lower side edges of the notch of the installation groove 10 are provided with first notches 11 for the upper and lower ends of the support portion 61 to be respectively embedded, so that the support portion 61 can be embedded in the installation groove 10, further making the overall structure of the product more compact, and in addition, the two side walls of the first notch 11 can also cooperate with the support portion 61 to limit the lateral movement of the support portion 61, thereby improving the positioning effect of the support portion 61. Furthermore, the first notch 11 is provided with a second notch 12 for the second limiting portion 612 of the support portion 61 to be embedded, so that the second limiting portion 612 of the support portion 61 can be embedded in the second notch 12, making the overall structure more compact.

[0039] Figure 6 , Figure 7 The structures of the upper and lower ends of the base 1 are shown respectively, the connecting portion 62 includes a support arm 621 extending laterally, and a slot 622 is provided at the end of the support arm 621. The upper and lower ends of the base 1 are provided with a slot 13 for the support arm 621 to be embedded, and the bottom of the slot 13 is provided with a boss 14 that cooperates with the support arm 621 for contact and support. The slot 13 has two side walls that cooperate with the two sides of the support arm 621 to limit the position. The limiting cooperation between the side walls of the slot 13 and the support arm 621 can improve the connection effect of the connecting portion 62, so that the connecting portion 62 is not easy to shake or fall out. In addition, the side walls of the slot 13 can also play a role in guiding the installation of the support arm 621. The boss 14 is provided with a wedge-shaped block 15 that cooperates with the slot 622 of the support arm 621 to facilitate the insertion and installation of the support arm 621. The end of the support arm 621 includes a bent portion 6211 that cooperates with the rear side of the boss 14 to limit the position.

[0040] During installation, the support arm 621 is inserted along the side wall of the slot 13 and the boss 14, and the elastic deformation ability of the material of the support arm 621 is used to make the slot 622 and the wedge-shaped block 15 aligned and connected, and then the end of the support arm 621 is pressed to deform and bend to form the bending portion 6211. The bending portion 6211 formed cooperates with the rear side of the boss 14 to limit the movement of the support arm 621 in the direction of extraction, which is convenient for installation and can improve the reliability of the connection. The rear side wall of the boss 14 is inclined. When the end of the support arm 621 is bent, the inclined rear side wall can cooperate with the end of the support arm 621 to limit the position, so that it can be naturally bent to an oblique bending angle, avoiding excessive bending and damage of the end of the support arm 621, and is also convenient for disassembly.

[0041] like Figure 5As shown, the mounting groove 10 includes a first mounting groove 102 and a second mounting groove 101. The first mounting groove 102 has a smaller width than the second mounting groove 101. An annular stepped surface 103 is provided at the connection between the first mounting groove 102 and the second mounting groove 101. The heating unit 2 is embedded in the first mounting groove 102. An elastic member 43 is abutted between the bottom inner wall of the first mounting groove 102 and the heating unit 2. In this embodiment, the elastic member 43 is integrally formed on the conductive contact portion 41 on the inner side of the heating unit 2. The baffle 3 is embedded in the second mounting groove 101 and is in contact with the conductive contact portion 41 on the inner side of the heating unit 2. The step surface 103 cooperates with the limit position, and the baffle 3 is pressed and contacted on the step surface 103 through the fastening effect of the connecting member 6. The heating unit 2, the baffle 3 and the two conductive contact parts 41 are kept in close contact and cooperation through the elastic member. The baffle 3 is a flat plate-like structure. The inner side of the baffle 3 and the step surface 103 cooperate with the limit position and cooperate with the heating unit 2 for heat conduction. The outer side of the baffle 3 and the heat-conducting ring 5 cooperate with contact and heat conduction. The baffle 3 is made of ceramic material and has good insulation, heat conduction and high temperature resistance. In order to improve the creepage performance, the size of the baffle 3 can be designed according to the needs. Moreover, since the baffle 3 is a flat plate-like structure, it is conducive to grinding on both sides and can improve smoothness. Therefore, it is possible to achieve improved thermal conductivity.

[0042] The heat-conducting ring 5 is formed by cutting segments of a tube processed by a drawing process. This process can improve the processing accuracy of the heat-conducting ring 5 and reduce the manufacturing cost. The processed heat-conducting ring 5 is integrally formed without gaps, is not easily deformed by external forces, has better structural strength, and can reduce the temperature deviation on the heat-conducting ring 5.

[0043] In order to facilitate the overall installation and fixation of the heating module, one side of the base 1 further includes a lug 16 , and a connecting hole 161 is provided on the lug 16 .

[0044] The above embodiment is only one of the preferred specific embodiments of the present invention. Common changes and substitutions made by those skilled in the art within the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A heating module, comprising a base, a mounting groove is provided on one side of the base, a heating unit is embedded in the mounting groove, a baffle is provided in the mounting groove for heat conduction with the heating unit, a conductive member is provided on the base, one end of the conductive member is passed through the mounting groove and connected with the heating unit, the other end of the conductive member is passed through the other side of the base and used for wiring, a heat-conducting ring is also provided on one side of the base for heat conduction with the baffle, and the characteristics are: The heat-conducting ring and the base are connected and fixed by a connecting component, and the connecting component includes a supporting part and two connecting parts respectively connected to the upper and lower ends of the supporting part. The supporting part is penetrated into the inner hole of the heat-conducting ring and is contacted and supported with the inner hole wall of the heat-conducting ring. The two connecting parts are respectively connected and fixed with the upper and lower ends of the base.

2. The heating module according to claim 1, characterized in that: The heat-conducting ring is composed of a first straight plate, two second straight plates and a connecting plate, wherein the inner and outer sides of the first straight plate are respectively in contact with the supporting portion and the baffle of the connecting member, one end of the two second straight plates is respectively vertically connected to the two ends of the first straight plate, one end of the two second straight plates is respectively connected to the two ends of the connecting plate, and the two sides of the supporting portion of the connecting member are connected with first limiting portions that respectively cooperate with the inner sides of the two second straight plates to limit.

3. The heating module according to claim 2, characterized in that: The upper and lower ends of the supporting part of the connecting member are both provided with second limiting parts that cooperate with the upper and lower ends of the first straight plate to abut and limit the position.

4. The heating module according to claim 3, characterized in that: The first straight plate is embedded in the installation groove.

5. The heating module according to claim 4, characterized in that: The upper and lower side edges of the groove of the installation groove are both provided with first notches for the upper and lower ends of the support part to be respectively embedded.

6. The heating module according to claim 5, characterized in that: The first notch is provided with a second notch for the second limiting portion of the support portion to be embedded in.

7. The heating module according to claim 1, characterized in that: The connecting portion includes a laterally extending support arm, a card slot is provided at the end of the support arm, slots for the support arm to be inserted are provided at the upper and lower ends of the base, a boss is provided at the bottom of the slot for contact and support with the support arm, the slot has two side walls for limiting the position with the two sides of the support arm, a wedge-shaped block is provided on the boss for locking and positioning with the card slot of the support arm, and the end of the support arm includes a bent portion for limiting the position with the rear side of the boss.

8. The heating module according to claim 7, characterized in that: The rear side wall of the boss is arranged in an inclined manner.

9. The heating module according to claim 1, characterized in that: The mounting groove includes a first mounting groove and a second mounting groove, the first mounting groove has a smaller width than the second mounting groove, and an annular step surface is arranged at the connection between the first mounting groove and the second mounting groove, the heating unit is embedded in the first mounting groove, an elastic component is arranged between the bottom inner wall of the first mounting groove and the heating unit, the baffle is embedded in the second mounting groove and cooperates with the step surface to limit the position, the baffle is a flat plate-like structure, one side of the baffle cooperates with the step surface to limit the position and cooperates with the heating unit for heat conduction, and the other side of the baffle cooperates with the heat-conducting ring for contact heat conduction, and the baffle is made of ceramic material.

10. The heating module according to claim 1, characterized in that: The heat-conducting ring is formed by cutting a tube made by a drawing process.

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