Control module and printing pen
By using an integrated sliding component to clamp the circuit board in the 3D printing pen, the sliding component structure is simplified, the problem of high production cost is solved, and the effects of power connection stability and cost reduction are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN HAISHU ELECTRONIC TECH CO LTD
- Filing Date
- 2025-04-16
- Publication Date
- 2026-04-17
AI Technical Summary
The sliding component structure of existing 3D printed pens is complex, resulting in high production costs and difficult assembly.
The sliding component is integrally molded and fixed to the circuit board by clamping. The sliding component has contact ends with different resistance values to adjust the output power of the output module, which simplifies the structure and reduces production costs.
This design achieves a tight connection between the sliding component and the circuit board, ensuring electrical stability, and reduces production costs by simplifying the structure.
Smart Images
Figure CN224130473U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of 3D printing technology, and in particular to an output module and a 3D printing pen. Background Technology
[0002] A 3D printing pen is a drawing tool that uses hot-melt plastic to create art. The drawing scenarios of a 3D printing pen are not limited to two-dimensional planes, but can also be created in three-dimensional space.
[0003] In related technologies, a 3D printing pen generally includes a pen shell, an output module, a heating module, and a control module. The control module, output module, and heating module are located inside the pen shell. The pen shell has a material outlet. The output module is used to push the material rod, and the heating module is located near the material outlet to heat the material rod. During the process of the output module pushing the material rod, the heating module continuously melts the material rod near the material outlet, causing the molten plastic to be output from the outlet. The control module is electrically connected to the output module and is used to control the rate at which the output module pushes the material rod, thereby controlling the rate at which the printing pen outputs material.
[0004] Specifically, the output module includes a motor and a gear set. The material rod is positioned between two gears in the gear set. The motor drives the gears to rotate, thus pushing the material rod. The output module includes a PCB board and a slider. Two connected electrical connections are located on one side of the PCB board. A sliding adjustment button is located on the pen shell. The adjustment button is connected to the electrical connections on the PCB board via the slider. The slider includes a connected plastic base and two metal springs. The adjustment button is connected to the plastic base. Each metal spring is slidably connected to a corresponding electrical connection. Sliding the adjustment button changes the contact area between the metal spring and the electrical connection, creating different resistance values. The PCB board can acquire the corresponding resistance data and adjust the motor power accordingly, thereby controlling the output rate of the material rod. However, the slider's structure is relatively small and consists of at least three parts, making its assembly difficult and affecting the production cost of the 3D printing pen. Utility Model Content
[0005] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a control module that simplifies the structure of the slider and reduces production costs.
[0006] This application also proposes a printing pen having the aforementioned control module.
[0007] The control module according to a first aspect of this application includes: a circuit board and a slider.
[0008] The circuit board is provided with a first power connection structure and a second power connection structure connected to each other; the sliding member is slidably clamped on the circuit board, the sliding member is integrally formed, the sliding member has a first contact end and a second contact end connected to each other, the first contact end is slidably connected to the first power connection structure, and the second contact end is slidably connected to the second power connection structure; wherein, the first power connection structure has at least two contact portions formed along the sliding direction of the first contact end, the resistance values of the at least two contact portions are different, and the circuit board can obtain the resistance value of the contact portion contacted by the first contact end.
[0009] The control module according to the first aspect of this application has at least the following advantages: The control module of this application is used to control the output module in the printer pen. When the slider slides relative to the circuit board, the first contact end slides on the first electrical connection structure, and the second contact end slides on the second electrical connection structure. Since the first electrical connection structure forms at least two contact portions along the sliding direction of the first contact end, and the resistance values of the at least two contact portions are different, the circuit board can obtain the resistance value of the contact portion contacted by the first contact end. Therefore, when the first electrical connection structure slides to different contact portions, the circuit board can obtain different resistance data, so as to adjust the output power of the output module according to the different resistance data. Since the slider is integrally molded, the structure is simple and the production cost can be reduced. Furthermore, the slider is fixed to the circuit board by clamping, so that the slider and the circuit board are tightly connected. At the same time, the first contact end can abut against the first electrical connection structure and the second contact end can abut against the second electrical connection structure, ensuring the stability of the electrical connection.
[0010] According to some embodiments of this application, the first power connection structure and the second power connection structure are disposed on opposite sides of the circuit board or on the same side of the circuit board.
[0011] According to some embodiments of this application, the first electrical connection structure includes at least two first metal sheets, the resistance values of the at least two first metal sheets are different, a plurality of first metal sheets are distributed along the sliding direction of the first contact end, and the first contact end is capable of contacting any of the first metal sheets.
[0012] According to some embodiments of this application, the slider is configured to slide relative to the circuit board in a straight or curved direction.
[0013] According to some embodiments of this application, the first power connection structure and the second power connection structure are located at the edge of the circuit board or at the middle of the circuit board, and extend along the straight sliding direction or the curved sliding direction of the slider.
[0014] According to some embodiments of this application, the control module further includes a third power connection structure connected to the first power connection structure, the third power connection structure having the same polarity as the second power connection structure, and the slider also having a third contact end connected to the first contact end, the third contact end being slidably connected to the third power connection structure.
[0015] According to some embodiments of this application, the third power connection structure is disposed on the same side of the circuit board as the first power connection structure, the first power connection structure and the second power connection structure are disposed on opposite sides of the circuit board, and the length of the second power connection structure and the length of the third power connection structure are both greater than the length of the first power connection structure.
[0016] A printer pen according to a second aspect of this application includes: an output module and a control module according to a first aspect of this application, wherein a circuit board in the control module is electrically connected to the output module, and the output module is capable of adjusting the output power according to the resistance value of the contact portion obtained by the circuit board.
[0017] The printing pen according to the second aspect embodiment of this application has at least the following beneficial effects: including all the beneficial effects of the first aspect embodiment, which will not be repeated here.
[0018] According to some embodiments of this application, the printing pen further includes a housing and a sliding key. The output module and the control module are disposed within the housing. The sliding key is slidably disposed within the housing, with a portion of the sliding key protruding from the outer side of the housing. The sliding element forms a slot, and the sliding key is inserted into the slot.
[0019] According to some embodiments of this application, the printing pen further includes a heating module for melting the consumables output by the output module.
[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0021] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:
[0022] Figure 1 This is a schematic diagram of the structure of the printing pen according to the second aspect of this application;
[0023] Figure 2 This is a schematic diagram of the control module according to the first aspect of this application;
[0024] Figure 3 for Figure 2 Exploded view of the central control module;
[0025] Figure 4 for Figure 2 Another structural diagram of the central control module;
[0026] Figure 5 This is a schematic diagram of the first and second power connection structures in other embodiments;
[0027] Figure 6 This is a schematic diagram of the first and second power connection structures in other embodiments;
[0028] Figure 7 When the first electrical connection structure is a potentiometer, the relationship between the sliding distance of the slider and the resistance value obtained by the circuit board is shown in the figure.
[0029] Figure 8 The graph shows the relationship between the sliding distance of the slider and the resistance value obtained by the circuit board when the first electrical connection structure is the first metal sheet.
[0030] Figure label:
[0031] Circuit board 100, first power connection structure 110, first metal sheet 111, contact portion 112; second power connection structure 120, second metal sheet 121; third power connection structure 130, third metal sheet 131;
[0032] Sliding member 200, first contact end 210, second contact end 220, third contact end 230, and slot 240;
[0033] Output module 300;
[0034] Shell 400, discharge port 410;
[0035] Slide key 500;
[0036] Consumables: 600. Detailed Implementation
[0037] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0038] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.
[0039] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0040] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.
[0041] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0042] Reference Figures 2 to 4 The control module according to the first aspect of the present application includes: a circuit board 100 and a slider 200.
[0043] The circuit board 100 is provided with a first power connection structure 110 and a second power connection structure 120 connected to each other; the slider 200 is slidably clamped on the circuit board 100, and the slider 200 has a first contact end 210 and a second contact end 220 connected to each other. The first contact end 210 is slidably connected to the first power connection structure 110, and the second contact end 220 is slidably connected to the second power connection structure 120; wherein, the first power connection structure 110 has at least two contact portions 112 formed along the sliding direction of the first contact end 210, and the resistance values of the at least two contact portions 112 are different. The circuit board 100 can obtain the resistance value of the contact portion 112 contacted by the first contact end 210.
[0044] It is understood that the control module of this application is used to control the output module 300 in the printer pen. When the slider 200 slides relative to the circuit board 100, the first contact end 210 slides on the first power connection structure 110, and the second contact end 220 slides on the second power connection structure 120. Since the first power connection structure 110 forms at least two contact portions 112 along the sliding direction of the first contact end 210, and the resistance values of the at least two contact portions 112 are different, the circuit board 100 can obtain the resistance value of the contact portion 112 contacted by the first contact end 210. Thus, when the first power connection structure 110 slides to different contact portions 112, the circuit board 100 can obtain different resistance data so as to adjust the output power of the output module 300 according to the different resistance data. Since the slider 200 is integrally molded, its structure is simple and can reduce production costs. Furthermore, the slider 200 is fixed to the circuit board 100 by clamping, so that the slider 200 and the circuit board 100 are tightly connected. At the same time, the first contact end 210 abuts against the first power connection structure 110 and the second contact end 220 abuts against the second power connection structure 120, ensuring power connection stability.
[0045] For example, the slider 200 is roughly C-shaped to clamp the circuit board 100 from the side. The slider 200 is made of conductive metal and is formed by bending sheet metal, which has a certain elasticity so that the slider 200 can abut against the circuit board 100. The first contact end 210 and the second contact end 220 are the positions where the slider 200 abuts against the circuit board 100, so that the first contact end 210 can make close contact with the first power connection structure 110 and the second contact end 220 can make close contact with the second power connection structure 120.
[0046] Regarding the relative positions between the first power connection structure 110 and the second power connection structure 120:
[0047] In some embodiments, refer to Figure 2 and Figure 4 The first power connection structure 110 and the second power connection structure 120 are disposed on opposite sides of the circuit board 100.
[0048] It is understandable that by placing the first power-connecting structure 110 and the second power-connecting structure 120 on opposite sides of the circuit board 100, the space occupied by the first power-connecting structure 110 and the second power-connecting structure 120 on the same side of the circuit board 100 can be reduced, avoiding the circuit board 100 becoming too long or too wide due to the distribution of the first power-connecting structure 110 and the second power-connecting structure 120 along the length or width direction of the circuit board 100. Furthermore, the first contact end 210 and the second contact end 220 can respectively abut against opposite sides of the circuit board 100. Simultaneously, since the sliding member 200 is clamped on the circuit board 100, the sliding member 200 exerts a squeezing force on the circuit board 100, ensuring close contact between the first contact end 210 and the first power-connecting structure 110, and close contact between the second contact end 220 and the second power-connecting structure 120, reducing the risk of disconnection.
[0049] In other embodiments, the first power connection structure 110 and the second power connection structure 120 may also be disposed on the same side of the circuit board 100.
[0050] Regarding the specific form of the first power connection structure 110:
[0051] In some embodiments, refer to Figure 2 and Figure 3 The first electrical connection structure 110 includes at least two first metal pieces 111, the resistance values of the at least two first metal pieces 111 are different, and the plurality of first metal pieces 111 are distributed along the sliding direction of the first contact end 210, and the first contact end 210 can contact any of the first metal pieces 111.
[0052] It is understandable that when the slider 200 slides relative to the circuit board 100, the first contact end 210 can slide from one of the first metal pieces 111 to the adjacent first metal pieces 111. Since the resistance values of the first metal pieces 111 are different, when the first contact end 210 contacts different first metal pieces 111, the circuit board 100 can obtain different resistance data to change the output power of the output module 300. Specifically, each first metal piece 111 is a contact part 112.
[0053] Specifically, the second power connection structure 120 includes a second metal sheet 121, which extends along the length of the circuit board 100.
[0054] In other embodiments, the first power connection structure 110 may also be a metal sheet. The first power connection structure 110 is coated with multiple coatings along the sliding path of the first contact end 210. The resistance of the first contact end 210 is different when it contacts different coatings. Each different coating is a contact portion 112.
[0055] In other embodiments, the first power connection structure 110 may also be a potentiometer.
[0056] It is also understandable that the resistance of the first contact end 210 remains the same when it slides to different positions on the same first metal plate 111. The resistance only changes when the first contact end 210 moves to another first metal plate 111. Therefore, when moving the slider 200, refer to... Figure 8 , Figure 8 This diagram illustrates the relationship between the sliding distance of the slider 200 and the resistance value obtained by the circuit board 100 when the first electrical connection structure 110 is the first metal sheet 111 and the first contact end 210 slides from the first first metal sheet 111 to the last first metal sheet 111. Figure 8 It is evident that when the slider is 200°, the resistance change exhibits a segmented distribution. (Refer to...) Figure 7 , Figure 7 This diagram illustrates the relationship between the sliding distance of the slider 200 and the resistance value obtained by the circuit board 100 when the first electrical connection structure 110 is a potentiometer and the first contact end 210 slides from one end of the potentiometer to the other. Figure 7 As can be seen, the resistance change is linearly distributed when the slider 200 is slidable. Therefore, the circuit board 100 needs to preset multiple resistance ranges according to the gear position. After the circuit board 100 obtains the resistance value, it needs to first determine which resistance range the resistance value falls into to determine the corresponding gear position, and then adjust the output power of the output module 300. Thus, when the first power connection structure 110 uses multiple first metal sheets 111 with different resistance values, the resistance is distributed in segments. During the sliding process, each individual resistance value can match a gear position, so that the circuit board 100 does not need to perform additional calculations. The process of adjusting the output power is simpler and faster, and the errors or mistakes that may be caused during the calculation process are reduced.
[0057] Regarding the sliding direction of slider 200:
[0058] In some embodiments, refer to Figures 2 to 4 The slider 200 is configured to slide relative to the circuit board 100 in a straight line.
[0059] It is understood that the slider 200 can slide relative to the circuit board 100 in a straight line, the first power connection structure 110 is arranged in a straight line and the second power connection structure 120 is distributed in a straight line. When the slider 200 is pushed horizontally in a straight line, the first contact end 210 can slide on the first power connection structure 110 and the second contact end 220 can slide on the second power connection structure 120, making the adjustment action simple.
[0060] In other embodiments, reference is made to Figure 5 and Figure 6 The slider 200 is configured to slide relative to the circuit board 100 along a curved direction.
[0061] It is understandable that the slider 200 can slide relative to the circuit board 100 along a curved direction, and the first power connection structure 110 is arranged along a curved direction and the second power connection structure 120 is distributed along a curved direction, which can shorten the installation space of the first power connection structure 110 and the second power connection structure 120 in the horizontal direction. For example, referring to Figure 4 The first electrical contact structure 110 can be arranged in a meandering manner along the horizontal direction. Correspondingly, the second electrical contact structure 120 is distributed in a meandering manner along the horizontal direction. By pushing the slider 200 to move in the meandering direction, the first contact end 210 can slide on the first electrical contact structure 110, and the second contact end 220 can slide on the second electrical contact structure 120. For example, refer to Figure 5 The first power connection structure 110 is arranged in a ring, and correspondingly, the second power connection structure 120 is distributed along the ring. Specifically, when the slider 200 is rotated, the slider 200 moves along the ring direction, which enables the first contact end 210 to slide on the first power connection structure 110 and the second contact end 220 to slide on the second power connection structure 120.
[0062] Regarding the relative positions of the first power connection structure 110 and the second power connection structure 120 to the circuit board 100:
[0063] In some embodiments, refer to Figures 2 to 4 The first power connection structure 110 and the second power connection structure 120 are located at the edge of the circuit board 100 and extend along the straight sliding direction or the curved sliding direction of the slider 200.
[0064] It is understandable that by placing the first power-connecting structure 110 and the second power-connecting structure 120 at the edge of the circuit board 100, the slider 200 only needs to be clamped at the edge of the circuit board 100, allowing the slider 200 to be made smaller and reducing its space occupation. Furthermore, the first power-connecting structure 110 and the second power-connecting structure 120 extend along the straight or curved sliding direction of the slider 200 to ensure the stability of the sliding engagement between the slider 200 and the first power-connecting structure 110 and the second power-connecting structure 120.
[0065] In other embodiments, the first power connection structure 110 and the second power connection structure 120 may also be located in the middle of the circuit board 100.
[0066] To reduce the risk of disconnection between circuit board 100 and output module 300 due to contact failure, refer to Figure 2 and Figure 3 The control module also includes a third power connection structure 130 connected to the first power connection structure 110. The third power connection structure 130 has the same polarity as the second power connection structure 120. The slider 200 also has a third contact end 230 connected to the first contact end 210. The third contact end 230 is slidably connected to the third power connection structure 130.
[0067] It is understandable that when the slider 200 slides relative to the circuit board 100, the third contact end 230 can slide on the third power connection structure 130. Since the third power connection structure 130 and the second power connection structure 120 have the same polarity, when the second contact end 220 and the second power connection structure 120 are disconnected, but the third contact end 230 and the third power connection structure 130 still maintain contact, the third power connection structure 130, the third contact end 230, the first power connection structure 110 and the first contact end 210 can still form a circuit, and the circuit board 100 can still obtain the resistance of the first power connection structure 110 to control the output module 300.
[0068] For example, both the third power connection structure 130 and the second power connection structure 120 are negative terminals, and the first power connection structure 110 is a positive terminal. The third power connection structure 130 and the second power connection structure 120 are connected in parallel, and both the third power connection structure 130 and the second power connection structure 120 are connected in series with the first power connection structure 110. Specifically, the third power connection structure 130 includes a third metal sheet 131, which extends along the length of the circuit board 100.
[0069] Regarding the relative positions of the third power connection structure 130 and the second power connection structure 120:
[0070] In some embodiments, refer to Figures 2 to 4 The third power connection structure 130 and the first power connection structure 110 are located on the same side of the circuit board 100. The first power connection structure 110 and the second power connection structure 120 are located on opposite sides of the circuit board 100. The lengths of the second power connection structure 120 and the third power connection structure 130 are both greater than the length of the first power connection structure 110.
[0071] Understandably, the second power-connecting structure 120 is made relatively long to ensure that the second contact end 220 has sufficient sliding distance on the second power-connecting structure 120, reducing the risk of disconnection between the second contact end 220 and the second power-connecting structure 120. Since the third power-connecting structure 130 is mainly used as an auxiliary connection when the second contact end 220 disconnects, the third power-connecting structure 130 can be made relatively short, shorter than the second power-connecting structure 120. Then, distributing the second power-connecting structure 120 and the third power-connecting structure 130 on opposite sides of the circuit board 100 can reduce the area occupied on the same side of the circuit board 100, avoiding the circuit board 100 being too long or too wide. Similarly, the third power-connecting structure 130 is made relatively long to ensure that the third contact end 230 has sufficient sliding distance on the third power-connecting structure 130, reducing the risk of disconnection between the third contact end 230 and the third power-connecting structure 130. In addition, the second power connection structure 120 and the first power connection structure 110 are disposed on the same side of the circuit board 100, and the second power connection structure 120 and the first power connection structure 110 are distributed along the length direction of the circuit board 100 at the edge position of the circuit board 100, so that the first contact end 210 and the third contact end 230 of the slider 200 can be distributed along the length direction of the circuit board 100, thereby reducing the width dimension of the slider 200.
[0072] In other embodiments, the third power connection structure 130 and the second power connection structure 120 may also be disposed on the same side of the circuit board 100.
[0073] In other embodiments, the third power connection structure 130 and the first power connection structure 110 may also be disposed on opposite sides of the circuit board 100.
[0074] Reference Figure 1 The printer pen according to the second aspect of this application includes an output module 300 and a control module according to the first aspect of the application. The circuit board 100 in the control module is electrically connected to the output module 300, and the output module 300 can adjust the output power according to the resistance value of the contact portion 112 obtained by the circuit board 100.
[0075] The printing pen according to the second aspect embodiment of this application has at least the following beneficial effects: including all the beneficial effects of the first aspect embodiment, which will not be repeated here.
[0076] It is understood that the output module 300 includes a motor and a gear set. The consumable 600 is disposed between two gears in the gear set. The motor drives the gears of the gear set to rotate, thereby pushing the consumable 600. When the slider 200 in the control module slides relative to the circuit board 100, the second contact end 220 slides on the second power connection structure 120, and the first contact end 210 slides on the first power connection structure 110, so that the first contact end 210, the first power connection structure 110, the second contact end 220, and the second power connection structure 120 form a circuit. When the first contact end 210 slides to different contact portions 112 on the first power connection structure 110, the resistance value on the first power connection structure 110 changes. The circuit board 100 can obtain the resistance value data and control the output power of the motor according to the resistance value, thereby controlling the output speed of the consumable 600.
[0077] Reference Figure 1 According to some embodiments of this application, the printing pen also includes a housing 400 and a sliding key 500. The output module 300 and the control module are disposed within the housing 400. The sliding key 500 is slidably disposed within the housing 400. Part of the sliding key 500 protrudes from the outer side of the housing 400. The slider 200 forms a slot 240, and the sliding key 500 is inserted into the slot 240.
[0078] Understandably, the output module 300 and the control module are protected by the housing 400. The sliding key 500 protrudes from the outside of the housing 400, making it easy to push. Pushing the sliding key 500 causes the slider 200 to slide relative to the circuit board 100, thereby adjusting the output speed of the output module 300. Specifically, one end of the housing 400 has a discharge port 410 for discharging material.
[0079] Reference Figure 1 According to some embodiments of this application, the printing pen also includes a heating module for melting the consumable 600 output by the output module 300.
[0080] Understandably, the heating module can heat the consumable 600, causing the consumable 600 output from the outlet 410 to melt.
[0081] Specifically, the 600 filament is in the shape of a bar or a roll, and the 600 filament is a 3D printing material such as PLA plastic, PETG plastic, ABS plastic or TPU plastic.
[0082] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.
Claims
1. Control module, characterized in that include: A circuit board, wherein a first power connection structure and a second power connection structure are provided on the circuit board; A sliding member is slidably clamped onto the circuit board. The sliding member is integrally formed and has a first contact end and a second contact end connected to each other. The first contact end is slidably connected to the first power-connecting structure, and the second contact end is slidably connected to the second power-connecting structure. The first power-connecting structure has at least two contact portions formed along the sliding direction of the first contact end. The resistance values of the at least two contact portions are different, and the circuit board can obtain the resistance value of the contact portion contacted by the first contact end.
2. The control module of claim 1, wherein, The first power connection structure and the second power connection structure are disposed on opposite sides of the circuit board or on the same side of the circuit board.
3. The control module of claim 1, wherein, The first electrical connection structure includes at least two first metal plates with different resistance values. A plurality of first metal plates are distributed along the sliding direction of the first contact end, and the first contact end can contact any of the first metal plates.
4. The control module of claim 1, wherein, The slider is configured to slide relative to the circuit board in a straight line or a curved direction.
5. The control module of claim 1, wherein, The first power connection structure and the second power connection structure are located at the edge of the circuit board or at the middle of the circuit board, and extend along the straight sliding direction or the curved sliding direction of the slider.
6. The control module of claim 1, wherein, It also includes a third power connection structure connected to the first power connection structure, the third power connection structure having the same polarity as the second power connection structure, and the sliding member further having a third contact end connected to the first contact end, the third contact end being slidably connected to the third power connection structure.
7. The control module of claim 6, wherein, The third power connection structure is located on the same side of the circuit board as the first power connection structure. The first power connection structure and the second power connection structure are located on opposite sides of the circuit board. The lengths of the second power connection structure and the third power connection structure are both greater than the length of the first power connection structure.
8. A printing pen characterized by include: The output module and the control module as described in any one of claims 1 to 7, wherein the circuit board in the control module is electrically connected to the output module, and the output module is capable of adjusting the output power according to the resistance value of the contact portion obtained by the circuit board.
9. The printing pen according to claim 8, wherein It also includes a housing and a sliding key. The output module and the control module are disposed inside the housing. The sliding key is slidably disposed in the housing. The sliding key part protrudes from the outside of the housing. The sliding element forms a slot, and the sliding key is inserted into the slot.
10. The printing pen of claim 8, wherein, It also includes a heating module, which is used to melt the consumables output by the output module.