A glue heating device

Abstract

The utility model relates to battery production technical field discloses a glue heating device, including shell, heat conductor, heating part and lid, the inside of shell is equipped with first accommodating chamber, the shell is equipped with top wall in first direction, and the first accommodating chamber is communicated with first avoiding hole that is set up on top wall; Heat conductor is located in first accommodating chamber, and the second accommodating chamber that is used for standing glue bottle is equipped in heat conductor, and the cavity wall of second accommodating chamber is equipped with mounting hole, and mounting hole is opposite with first avoiding hole along first direction and is connected first accommodating chamber with second accommodating chamber; Heating part is located in heat conductor, and heating part is located outside second accommodating chamber, lid is inserted in first avoiding hole, and lid is covered on mounting hole, and lid and heat conductor are detachably connected, and the observation hole is equipped on lid. The utility model can make the even heating of glue everywhere, reduce heat overflow, improve heating efficiency, and can directly observe the glue state, and it is convenient for finding the overflow problem in time.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, and in particular to an adhesive heating device. Background Technology

[0002] In the battery cell manufacturing process, before folding the aluminum-plastic film casing of the battery cell, an adhesive dispensing process is required to fix the folded edges and prevent them from unraveling. Before dispensing, the adhesive needs to be heated to change from a solid to a liquid state, thus facilitating dispensing. Currently, existing technologies generally use an adhesive heating device to heat the adhesive. The adhesive is placed in an open heating tank, and a heating rod is placed inside the tank to heat the adhesive. However, the open heating tank usually only covers part of the adhesive, meaning that only the adhesive inside the tank can directly receive heat from the heating rod, while the adhesive outside the tank can only receive heat through internal heat transfer. This not only results in low heating efficiency but also easily leads to uneven heating of the adhesive. Utility Model Content

[0003] The purpose of this invention is to provide an adhesive heating device to solve the problems of low heating efficiency and uneven heating of adhesive in existing adhesive heating devices.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model provides an adhesive heating device, having a first direction, including:

[0006] The outer shell has a first accommodating cavity inside, and the outer shell has a top wall in the first direction, and the top wall has a first clearance hole communicating with the first accommodating cavity;

[0007] A heat conductor is disposed within the first accommodating cavity. The heat conductor contains a second accommodating cavity for upright placement of a glue bottle. The cavity wall of the second accommodating cavity is provided with an installation hole. The installation hole and the first clearance hole are arranged opposite to each other along the first direction. The installation hole connects the first accommodating cavity and the second accommodating cavity.

[0008] A heating element is disposed within the heat conductor, and the heating element is located outside the second accommodating cavity;

[0009] The cover is inserted into the first clearance hole, the cover covers the mounting hole, and the cover is detachably connected to the heat conductor. The cover is provided with an observation hole.

[0010] In some embodiments, the cover includes a cover body and a heat-conducting element, the heat-conducting element being connected to the cover body and detachably connected to the heat-conducting body.

[0011] In some embodiments, an electronic control system is further included, disposed within the first accommodating cavity, wherein the heating element is electrically connected to the electronic control system, and the electronic control system is used to supply power to the heating element.

[0012] In some embodiments, the device further includes a temperature sensing element and a temperature controller. The temperature sensing element is mounted on the heat conductor, and the temperature controller is disposed in the first accommodating cavity. The temperature sensing element and the heating element are electrically connected to the temperature controller, and the temperature controller is electrically connected to the electronic control system.

[0013] In some embodiments, it also includes:

[0014] The control switch is mounted on the housing;

[0015] A time relay is installed in the housing and partially extends into the first accommodating cavity; the time relay is electrically connected to the control switch and the electronic control system.

[0016] The alarm is electrically connected to the control switch and the electronic control system.

[0017] In some embodiments, it also includes:

[0018] A baffle is disposed within the first accommodating cavity, the baffle dividing the first accommodating cavity into a first cavity and a second cavity along the first direction, and the electronic control system is disposed within the first cavity;

[0019] A heat insulation plate is disposed in the second cavity, the heat insulation plate is connected to the baffle, and the heat insulation plate and the baffle are spaced apart, and the heat conductor is disposed on the heat insulation plate.

[0020] In some embodiments, a heat insulation box is further included, disposed in the second cavity, the heat insulation box is covered by the baffle, the heat insulation box is in contact with the outer shell, and the box wall of the heat insulation box is provided with a second clearance hole opposite to the first clearance hole.

[0021] In some embodiments, the heat conductor includes a plurality of sub-heat conductors connected sequentially along the first direction. Each sub-heat conductor is provided with a through hole. The central axis of the through hole extends along the first direction. Each through hole is interconnected to form the second accommodating cavity. One end of the through hole of the sub-heat conductor near the first clearance hole forms the mounting hole.

[0022] In some embodiments, the wall of the mounting hole extends along the first direction and has an extension section, the outer wall of the extension section has an external thread, and the cover is threaded onto the extension section.

[0023] In some embodiments, a handle is also included, which is rotatably connected to the outer wall of the housing.

[0024] Compared with the prior art, the glue heating device of this utility model has the following advantages:

[0025] The glue heating device of this utility model embodiment includes a heat conductor disposed within a first accommodating cavity of the outer shell, a second accommodating cavity for holding a glue bottle and a heating element disposed within the heat conductor, and a cover covering the mounting hole of the second accommodating cavity to seal the second accommodating cavity, forming a relatively sealed heating space. When the glue bottle is placed in this relatively sealed heating space, heat is emitted by the heating element and transferred to the glue through the heat conductor, thus heating the glue. During the glue heating process, since the entire glue bottle is located within the heating space, on the one hand, the glue bottle is completely covered by the heat source, allowing all parts of the glue bottle to directly receive heat, resulting in uniform heating of the glue and reducing heat leakage, thus improving heating efficiency; on the other hand, when in use, the glue bottle is placed upright in the second accommodating cavity through the mounting hole, allowing the bottle opening to be opened and standing upright in the sealed heating space, preventing glue spraying due to thermal expansion and preventing glue overflow; furthermore, an observation hole is provided on the cover, allowing for direct observation of the glue state and facilitating timely detection of glue overflow problems. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the adhesive heating device described in an embodiment of the present invention;

[0027] Figure 2 yes Figure 1 A top view of the glue heating device shown in the diagram;

[0028] Figure 3 yes Figure 2 Sectional view along line AA in the middle;

[0029] Figure 4 This is a schematic diagram of the structure of the cover in an embodiment of this utility model;

[0030] Figure 5 This is an exploded view of the cover and the internal components of the second cavity in an embodiment of this utility model;

[0031] Figure 6 This is a schematic diagram of the arrangement of the electronic control system inside the housing in an embodiment of this utility model;

[0032] Figure 7 This is a schematic diagram of the structure of the heat insulation box in an embodiment of this utility model.

[0033] Numbering on the map:

[0034] 10. Outer shell; 101. First accommodating cavity; 1011. First cavity body; 1012. Second cavity body; 11. Top wall; 111. First clearance hole; 20. Heat conductor; 201. Second accommodating cavity; 202. Mounting hole; 2021. Extension section; 21. Sub-heat conductor; 211. Through hole; 30. Heating element; 40. Cover; 401. Observation hole; 41. Cover body; 42. Heat conductor; 50. Electrical control system; 51. Power supply; 52. Terminal block. 53. Intermediate relay; 54. Solid-state relay; 55. AC contactor; 56. Junction box; 57. Main switch; 58. Three-prong socket; 60. Temperature sensing element; 61. Thermostat; 70. Control switch; 71. Time relay; 72. Alarm; 73. Reset switch; 80. Baffle; 81. Heat insulation board; 82. Support column; 83. Heat insulation box; 831. Second clearance hole; 90. Handle; 91. Support foot pad; 100. Glue bottle; Z, First direction. Detailed Implementation

[0035] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0038] See Figures 1-5As shown, this utility model embodiment provides a glue heating device with a first direction Z, including a shell 10, a heat conductor 20, a heating element 30, and a cover 40. The shell 10 has a first receiving cavity 101 inside, and a top wall 11 in the first direction Z. The top wall 11 has a first clearance hole 111 communicating with the first receiving cavity 101. The heat conductor 20 is disposed within the first receiving cavity 101, and a second receiving cavity 201 for upright placement of a glue bottle 100 is provided within the heat conductor 20. The cavity wall of the second receiving cavity 201 has a mounting hole 202, which is opposite to the first clearance hole 111 along the first direction Z. The mounting hole 202 communicates with the first receiving cavity 101. 1. The second accommodating cavity 201 is used to place the glue bottle 100. In use, the glue bottle 100 is inserted vertically into the second accommodating cavity 201 through the first clearance hole 111 and the mounting hole 202. The glue bottle 100 can partially extend out of the mounting hole 202. The heating element 30 is disposed in the heat conductor 20 and is located outside the second accommodating cavity 201. The heating element 30 is used to heat the glue bottle 100 in the second accommodating cavity 201. The cover 40 is inserted into the first clearance hole 111 and covers the mounting hole 202. The cover 40 and the heat conductor 20 are detachably connected to form a relatively sealed heating space. The cover 40 is provided with an observation hole 401.

[0039] The second accommodating cavity 201 is sealed by the cap 40, forming a relatively enclosed heating space. The glue bottle 100 is placed within this enclosed space, and heat is emitted by the heating element 30 and transferred to the glue via the heat conductor 20, thus heating the glue. During the heating process, since the entire glue bottle 100 is located within the heating space, on the one hand, the glue bottle 100 is completely enveloped by the heat source, allowing all parts of the bottle to directly receive heat, resulting in uniform heating of the glue and reducing heat leakage, thus improving heating efficiency; on the other hand, when in use, the glue bottle 100 is placed upright in the second accommodating cavity 201 through the mounting hole 202, allowing the bottle to be opened and standing upright in the enclosed heating space, preventing glue spraying due to thermal expansion and avoiding glue overflow; furthermore, the cap 40 has an observation hole 401, allowing for direct observation of the glue's condition and facilitating timely detection of glue overflow problems.

[0040] See Figure 1 As shown, in some embodiments, the outer casing 10 is rectangular in shape, with the first direction Z being the height direction of the outer casing 10. The outer casing 10 provides a space for accommodating the heat conductor 20 and the heating element. The first clearance hole 111 provided on the outer casing 10 facilitates the connection between the cover 40 and the heat conductor 20 through the first clearance hole 111, avoiding interference between the cover 40 and the outer casing 10. Furthermore, the cover 40 can extend outside the first clearance hole 111, allowing for easy observation of the adhesive state from the outside through the observation hole 401 of the cover 40.

[0041] See Figure 3 and Figure 4 As shown, in some embodiments, the cover 40 includes a cover body 41 and a heat-conducting element 42. The heat-conducting element 42 is connected inside the cover body 41 and is detachably connected to the heat-conducting body 20. The heat-conducting element 42 covers the top of the glue bottle 100, ensuring uniform heating of the glue bottle 100. The cover body 41 provides heat insulation, preventing burns when operating the cover 40. The heat-conducting element 42 may be made of copper, and the cover body 41 may be made of nylon. The heat-conducting element 42 protrudes upwards along the first direction Z. A clearance cavity is provided on the side of the heat-conducting element 42 facing the mounting hole 202, which facilitates the connection between the heat-conducting element 42 and the heat-conducting body 20 and prevents direct contact between the heat-conducting element 42 and the glue bottle 100, thus avoiding localized high temperatures in the glue bottle 100. The cover body 41 is fitted onto the heat-conducting element 42, and the cover body 41 and the heat-conducting element 42 can be connected by screws for easy assembly and disassembly.

[0042] See Figure 5 As shown, in some embodiments, the wall of the mounting hole 202 extends along the first direction Z to form an extension section 2021. The outer wall of the extension section 2021 has external threads, and the cover 40 is threadedly assembled onto the extension section 2021, which facilitates the connection between the cover 40 and the heat conductor 20 and is easy to manufacture. The cavity wall of the clearance cavity of the heat conductor 42 of the cover 40 has internal threads, and the heat conductor 42 is threadedly connected to the extension section 2021.

[0043] See Figure 5 As shown, in some embodiments, the heat conductor 20 includes a plurality of sub-heat conductors 21 connected sequentially along the first direction Z. Each sub-heat conductor 21 has a through hole 211, the central axis of which extends along the first direction Z. The through holes 211 are interconnected to form a second accommodating cavity 201. One end of the through hole 211 of the sub-heat conductor 21 near the first clearance hole 111 forms a mounting hole 202. Dividing the heat conductor 20 into a plurality of sub-heat conductors 21 facilitates the manufacturing of the heat conductor 20 and allows for easy disassembly and cleaning of each sub-heat conductor 21 in case of glue overflow. The second accommodating cavity 201, formed by the through holes 211, facilitates manufacturing and ensures that the diameter of the through holes 211 matches the glue bottle 100, maintaining the glue bottle 100 upright within the second accommodating cavity 201. The plurality of sub-heat conductors 21 can be connected sequentially by screws.

[0044] See Figure 5As shown, in some embodiments, multiple heating elements 30 are provided, and the multiple heating elements 30 are spaced apart within the heat conductor 20. When the heat conductor 20 includes multiple sub-heat conductors 21, one heating element 30 is installed within multiple sub-heat conductors 21, and each sub-heat conductor 21 has an insertion hole for the heating element 30, and the insertion holes of each sub-heat conductor 21 are interconnected. The heating element 30 is a heating rod, and the length direction of the heating element 30 is parallel to the first direction Z. Optionally, six heating elements 30 are provided. By setting the heating power and number of heating elements 30, the maximum heating power for heating the glue is ensured, which facilitates improving the heating efficiency of the glue in the glue bottle 100.

[0045] See Figure 6 As shown, in some embodiments, the glue heating device further includes an electrical control system 50, which is located within the first accommodating cavity 101. The heating element 30 is electrically connected to the electrical control system 50, and the electrical control system 50 supplies power to the heating element 30. By providing an independent electrical control system 50, the glue heating device can be operated independently outside the production line, improving its ease of use.

[0046] See Figure 1 , Figure 3 and Figure 6 As shown, in some embodiments, the glue heating device further includes a temperature sensing element 60 and a temperature controller 61. The temperature sensing element 60 is installed on the heat conductor 20, and the temperature controller 61 is located in the first accommodating cavity 101. The temperature sensing element 60 and the heating element 30 are electrically connected to the temperature controller 61, which is electrically connected to the electronic control system 50. The temperature of the heat conductor 20 is measured by the temperature sensing element 60. Based on the detection result of the temperature sensing element 60, the temperature controller 61 controls the heating of the heating element 30, ensuring that the heating element 30 outputs a constant temperature required to activate the glue, so that the heat conductor 20 can reach and maintain the set temperature, thereby ensuring constant temperature heating of the glue. The temperature sensing element 60 is a thermocouple and is located at the bottom of the heat conductor 20. Optionally, the temperature sensing element 60 is a K-type screw thermocouple. The electronic control system 50 is also used to supply power to the temperature controller 61. The temperature controller 61 uses a visual PID controller. Both the heating element 30 and the temperature controller 61 are controlled by a main switch 57, which is located on the outer casing 10 and connected to the electrical control system 50. A visual PID controller is used to adjust the heating power of the heating element 30 to improve the heating efficiency of the glue in the glue bottle 30. For example, initially, when the glue bottle 100 is placed in the glue bottle, the visual PID controller controls the heating element 30 to heat the glue bottle 100 with a higher heating power, quickly raising the temperature of the glue inside the glue bottle 100. When the glue temperature approaches the set temperature, the heating power of the heating element 30 is reduced to maintain a certain heating temperature, thereby keeping the glue heating temperature constant.

[0047] See Figure 1 and Figure 6As shown, in some embodiments, the adhesive heating device further includes a control switch 70, a time relay 71, and an alarm 72. The control switch 70 is installed in the housing 10; the time relay 71 is installed in the housing 10 and partially extends into the first receiving cavity 101, and is electrically connected to the control switch 70 and the electronic control system 50; the alarm 72 is electrically connected to the control switch 70 and the electronic control system 50. The control switch 70 activates the time relay 71, which then performs timing. Once the set time is reached, the alarm 72 sounds an alarm to ensure the minimum activation time for the adhesive. By controlling the heating temperature and time of the adhesive, the adhesive can be kept in an optimal activation state, preventing insufficient activation and a decrease in the yield of the battery cell products. The electronic control system 50 also supplies power to the time relay 71 and the alarm 72. The time relay 71 is a digital display time relay, model DH48S-S, for convenient and intuitive time observation. The alarm 72 is a flashing buzzer, model LD16-22SM.

[0048] See Figure 1 , Figure 3 and Figure 6 As shown, the glue heating device also includes a reset switch 73, which is connected to the time relay 71 to control the time relay 71 to reset. When the reset switch 73 is activated, the alarm 72 does not sound.

[0049] See Figure 6 As shown, in some embodiments, the electrical control system 50 includes a power supply 51, a terminal block 52, an intermediate relay 53, a solid-state relay 54, and an AC contactor 55. The heating element 30 is connected to the terminal block 52 via a cable, and then to the AC contactor 55 via the terminal block 52, which in turn connects to the power supply 51. A time relay 71 is connected to the power circuit of the temperature controller 61. The temperature controller 61 is connected to the intermediate relay 53 and the solid-state relay 54, and the solid-state relay 54 connects the power supply 51 to the heating element 30, thus achieving automatic temperature control of the heating element 30. The terminal block 52 is a six-in, six-out type. A cable box 56 is provided inside the housing 10 for storing cables, facilitating cable routing. The power supply 51 is connected to an external power source via a three-prong socket 58. The electrical control system 50 is controlled to start and stop via a main switch 57 located on the housing 10. The solid-state relay 54 is model G3NB-220B-1, the AC contactor 55 is model CJX2-1210, and the intermediate relay 53 is model LY2N-J12A-24VAC.

[0050] See Figure 3 and Figure 5As shown, in some embodiments, the glue heating device further includes a baffle 80 and a heat insulation plate 81. The baffle 80 is disposed within the first accommodating cavity 101, dividing the first accommodating cavity 101 into a first cavity 1011 and a second cavity 1012 along a first direction Z. The electrical control system 50 is disposed within the first cavity 1011. The heat insulation plate 81 is disposed within the second cavity 1012, connected to the baffle 80, and spaced apart from the baffle 80. The heat conductor 20 is disposed on the heat insulation plate 81. The baffle 80 and the heat insulation plate 81 isolate the heat conductor 20, the heating element 30, and the electrical control system 50, preventing heat transfer to the electrical control system 50 and thus avoiding overheating of the electrical control system 50 and affecting its normal operation. Furthermore, by spaced apart from the heat insulation plate 81 and the baffle 80, heat transfer between them can be reduced, further decreasing the heat transferred to the first cavity 1011 and ensuring the safe operation of the electronic control system 50. The baffle 80 and the heat insulation plate 81 can be connected by the support column 82.

[0051] See Figure 3 and Figure 7 As shown, in some embodiments, the glue heating device further includes a heat insulation box 83, which is disposed inside the second cavity 1012 and covers the baffle 80. The heat insulation box 83 is in contact with the outer shell 10, and the box wall of the heat insulation box 83 has a second clearance hole 831 opposite to the first clearance hole 111. The heat insulation box 83 isolates the second cavity 1012 from the outside environment, preventing burns when touching the outer shell 10. The bottom of the heat insulation box 83 is open, and the heat insulation box 83 shines on the baffle 80.

[0052] See Figure 1 As shown, in some embodiments, the glue heating device further includes a handle 90, which is rotatably connected to the outer wall of the housing 10, facilitating the overall movement of the glue heating device. When not in use, the handle 90 is attached to the housing 10, reducing the overall space occupied by the glue heating device; when in use, the handle 90 is rotated to make it perpendicular to the housing 10, facilitating manual pulling. A handle 90 seat may be provided on the housing 10, and the handle 90 is rotatably connected to the handle 90 seat.

[0053] See Figure 1 As shown, in some embodiments, the glue heating device further includes a plurality of support feet 91, which are disposed at the bottom of the housing 10.

[0054] See Figures 1-3As shown, in some embodiments, the heat conductor 20 may be provided with multiple second accommodating cavities 201. Each second accommodating cavity 201 is provided with a corresponding mounting hole 202 and a cover 40. The cover 40 covers the corresponding mounting hole 202, facilitating the placement of glue bottles 100 in each second accommodating cavity 201. This arrangement facilitates the simultaneous heating of glue in multiple glue bottles 100, improving heating efficiency.

[0055] The working process of this utility model is as follows:

[0056] Open the mouth of the glue bottle 100, pass the glue bottle 100 through the first clearance hole 111, the second clearance hole 831, and the mounting hole 202, and insert it upright into the second accommodating cavity 201. Connect the cover 40 to the heat conductor 20 and close the second accommodating cavity 201. Figures 1-3 , Figure 5 In this configuration, only the second accommodating cavity 201 on the left contains a glue bottle 100. A temperature sensing element 60 detects the temperature of the heat conductor 20, and a temperature controller 61 controls the heating element 30 to heat the glue in the glue bottle 100 until the heat conductor 20 reaches and maintains the set temperature. A time relay 71 keeps track of the time; after the set time is reached, an alarm 72 sounds an alarm and stops the heating element 30 from heating the glue. During the heating process, the glue's condition is observed through the observation hole 401 on the cover 40. If glue overflow occurs, the heating element 30 is immediately stopped.

[0057] In summary, this utility model embodiment provides a glue heating device, which has a heat conductor 20 disposed within a first accommodating cavity 101 of the outer shell 10, a second accommodating cavity 201 capable of holding a glue bottle 100 and a heating element 30 disposed within the heat conductor 20, and a cover 40 covering the mounting hole 202 of the second accommodating cavity 201, thereby sealing the second accommodating cavity 201 and forming a relatively sealed heating space. When the glue bottle 100 is placed in the relatively sealed heating space, heat is emitted by the heating element 30 and transferred to the glue through the heat conductor 20, thus achieving the heating operation of the glue. During the heating process of the glue, since the entire glue bottle 100 is located within the heating space, on the one hand, the glue bottle 100 is completely covered by the heat source, and all parts of the glue bottle 100 can directly receive heat, making the glue evenly heated and reducing heat leakage, thus improving heating efficiency; on the other hand, when in use, the glue bottle 100 is placed upright in the second accommodating cavity 201 through the mounting hole 202, so that the glue bottle 100 can be opened and placed upright in the sealed heating space, avoiding glue spraying due to heating expansion and preventing glue overflow; moreover, the cap 40 is provided with an observation hole 401, which allows for direct observation of the glue status and facilitates timely detection of glue overflow problems.

[0058] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A glue heating device having a first direction (Z), characterized in that, include: The outer shell (10) has a first accommodating cavity (101) inside. The outer shell (10) has a top wall (11) in the first direction (Z). The top wall (11) has a first clearance hole (111) communicating with the first accommodating cavity (101). A heat conductor (20) is disposed in the first accommodating cavity (101). The heat conductor (20) is provided with a second accommodating cavity (201) for upright placement of the glue bottle (100). The cavity wall of the second accommodating cavity (201) is provided with a mounting hole (202). The mounting hole (202) and the first clearance hole (111) are arranged opposite to each other along the first direction (Z). The mounting hole (202) connects the first accommodating cavity (101) and the second accommodating cavity (201). A heating element (30) is disposed inside the heat conductor (20), and the heating element (30) is located outside the second accommodating cavity (201); The cover (40) is inserted into the first clearance hole (111), the cover (40) covers the mounting hole (202), and the cover (40) is detachably connected to the heat conductor (20). The cover (40) is provided with an observation hole (401).

2. The glue heating device according to claim 1, characterized in that, The cover (40) includes a cover body (41) and a heat-conducting component (42). The heat-conducting component (42) is connected inside the cover body (41) and is detachably connected to the heat-conducting body (20).

3. The glue heating device according to claim 1, characterized in that, It also includes an electrical control system (50) disposed in the first accommodating cavity (101), the heating element (30) is electrically connected to the electrical control system (50), and the electrical control system (50) is used to supply power to the heating element (30).

4. The glue heating device according to claim 3, characterized in that, It also includes a temperature sensing element (60) and a temperature controller (61). The temperature sensing element (60) is installed on the heat conductor (20), and the temperature controller (61) is located in the first accommodating cavity (101). The temperature sensing element (60) and the heating element (30) are electrically connected to the temperature controller (61), and the temperature controller (61) is electrically connected to the electronic control system (50).

5. The glue heating device according to claim 4, characterized in that, Also includes: A control switch (70) is mounted on the housing (10); A time relay (71) is installed in the housing (10) and partially extends into the first accommodating cavity (101). The time relay (71) is electrically connected to the control switch (70) and the electronic control system (50). The alarm (72) is electrically connected to the control switch (70) and the electronic control system (50).

6. The glue heating device according to claim 3, characterized in that, Also includes: A baffle (80) is disposed in the first accommodating cavity (101). The baffle (80) divides the first accommodating cavity (101) into a first cavity (1011) and a second cavity (1012) along the first direction (Z). The electronic control system (50) is disposed in the first cavity (1011). A heat insulation plate (81) is disposed in the second cavity (1012). The heat insulation plate (81) is connected to the baffle (80), and the heat insulation plate (81) and the baffle (80) are spaced apart. The heat conductor (20) is disposed on the heat insulation plate (81).

7. The glue heating device according to claim 6, characterized in that, It also includes a heat insulation box (83) disposed inside the second cavity (1012). The heat insulation box (83) is covered on the baffle (80). The heat insulation box (83) is in contact with the outer shell (10). The wall of the heat insulation box (83) is provided with a second clearance hole (831) opposite to the first clearance hole (111).

8. The glue heating device according to claim 1, characterized in that, The heat conductor (20) includes a plurality of sub-heat conductors (21) connected sequentially along the first direction (Z). Each sub-heat conductor (21) is provided with a through hole (211). The central axis of the through hole (211) extends along the first direction (Z). Each through hole (211) is interconnected to form the second accommodating cavity (201). One end of the through hole (211) of the sub-heat conductor (21) near the first clearance hole (111) forms the mounting hole (202).

9. The glue heating device according to claim 1, characterized in that, The mounting hole (202) has an extension section (2021) extending along the first direction (Z). The outer wall of the extension section (2021) is provided with external threads, and the cover (40) is threadedly assembled onto the extension section (2021).

10. The glue heating device according to claim 1, characterized in that, It also includes a handle (90), which is rotatably connected to the outer wall of the housing (10).

Images