Terminal module and bathroom heater

Abstract

The utility model provides a kind of terminal module and bath heater, terminal module includes terminal pedestal, quick connector and wire locking part.The terminal pedestal is equipped with multiple and interval arrangement's receiving cavity;Quick connector is equipped with multiple and corresponding assembly in receiving cavity, quick connector includes annular connecting portion for wire insertion and at least one plug-in portion extending outward from one end of annular connecting portion;Quick connector is equipped with at least two, and the plug-in portion quantity of the at least two quick connector is different;Wire locking part is suitable for passing through terminal pedestal and annular connecting portion matched connection, and is configured to abut with wire that extends into annular connecting portion, to fix wire in annular connecting portion.Compared with prior art, the utility model's terminal module can guarantee bath heater internal wiring reliable, also can avoid misdisassembly screw during user carries out external wiring process, realizes whole machine performance stability.

Description

Technical Field

[0001] This utility model relates to a terminal block module and a bathroom heater, belonging to the field of electrical equipment technology. Background Technology

[0002] Currently, bathroom heaters and other electrical appliances on the market typically require wiring terminals during assembly to connect to the internal functional modules such as the motor, PTC, and lighting driver via wires, and also to external mechanical switches via wires.

[0003] Furthermore, most of the terminals used are cylindrical terminals, with each end secured by a screw to connect to a wire. This makes internal and external wiring complex and prone to errors. During disassembly, screws are easily removed, causing connected wires to detach and resulting in poor overall performance. Additionally, in bathroom heaters with intelligent digital displays, cylindrical terminals are not ideal for connecting additional wires.

[0004] In view of this, it is indeed necessary to improve the existing terminal block modules and bathroom heaters to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a wiring terminal module to ensure reliable internal wiring of the bathroom heater and to prevent accidental disassembly of screws during external wiring by the user, thereby achieving stable overall performance.

[0006] To achieve the above objectives, this utility model provides a terminal block module, comprising:

[0007] The terminal base has multiple receiving cavities arranged side by side and spaced apart.

[0008] The quick-connect terminal is provided in multiple and correspondingly assembled in the receiving cavity. The quick-connect terminal includes an annular connecting portion for inserting a wire and at least one plug portion extending outward from one end of the annular connecting portion. The quick-connect terminal is provided in at least two types, and the number of plug portions of the at least two types of quick-connect terminals is different.

[0009] A wire locking device, suitable for passing through a terminal base and engaging with an annular connector, and configured to abut against a wire extending into the annular connector to secure the wire within the annular connector.

[0010] Optionally, the terminal base has a first connecting side and a second connecting side opposite to each other, a receiving cavity passing through the first connecting side and the second connecting side, and includes a first receiving cavity near the first connecting side and a second receiving cavity near the second connecting side, an annular connecting portion being received in the first receiving cavity, and a plug-in portion being received in the second receiving cavity.

[0011] Optionally, the cross-section of the first receiving cavity is smaller than the cross-section of the second receiving cavity, and the quick-connect terminal is installed into the receiving cavity from the second connection side.

[0012] Optionally, the wire extends into the annular connection portion from the first connection side, and the terminal base and the annular connection portion are respectively provided with through holes for the locking member to pass through. The locking member passes through the through holes and extends into the annular connection portion to abut against the wire.

[0013] Optionally, the quick-connect terminal includes a first quick-connect terminal and a second quick-connect terminal. The first quick-connect terminal has at least one plug portion, and the second quick-connect terminal has at least two plug portions, with adjacent plug portions spaced apart.

[0014] Optionally, the first quick-connect terminal has one plug-in portion, and the second quick-connect terminal has four plug-in portions.

[0015] Optionally, the first quick-connect terminal has two opposite and parallel plug-in portions, and the second quick-connect terminal has four plug-in portions.

[0016] Optionally, the annular connector is formed by bending around the conductor; the annular connector includes a first end and a second end that are stacked on top of each other, one of the first end and the second end having a protrusion and the other having a slot, the protrusion engaging with the slot.

[0017] Optionally, the quick-connect terminal includes two power terminals, and the plug portions of the two power terminals are connected and conductive within the corresponding receiving cavity.

[0018] Another objective of this utility model is to provide a bathroom heater that includes the above-mentioned terminal block module.

[0019] To achieve the above objectives, this utility model provides a bathroom heater, including the aforementioned wiring terminal module.

[0020] The beneficial effects of this utility model are as follows: The terminal block module of this utility model sets multiple quick-connect terminals in the receiving cavity of the terminal base to at least two types, and the number of plug-in parts of the at least two types of quick-connect terminals is different. Thus, after the wire is inserted into the ring connection part, signal transmission between multiple functional modules can be realized by using these plug-in parts, without the need to set multiple wires for signal transmission separately. This not only ensures more reliable internal wiring of the bathroom heater, but also avoids accidental disassembly of screws during external wiring by the user, thus achieving stable performance of the whole machine. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the terminal block module of this utility model.

[0022] Figure 2 yes Figure 1 A three-dimensional structural diagram of the middle terminal block module from another angle.

[0023] Figure 3 yes Figure 1 Exploded view.

[0024] Figure 4 yes Figure 3 A three-dimensional structural diagram of the middle terminal base.

[0025] Figure 5 yes Figure 3 A three-dimensional structural diagram of the first quick-connect terminal.

[0026] Figure 6 yes Figure 3 A three-dimensional structural diagram of the second quick-connect terminal.

[0027] Figure 7 This is a three-dimensional structural schematic diagram of another embodiment of the terminal block module of this utility model.

[0028] Figure 8 yes Figure 7 Exploded view.

[0029] Figure 9 yes Figure 8 A three-dimensional structural diagram of the first quick-connect terminal.

[0030] Figure 10 yes Figure 8 A three-dimensional structural diagram of the power supply terminals.

[0031] Figure label:

[0032] 100-Terminal Block Module;

[0033] 1-Terminal base; 11-Mounting part; 12-Receiving cavity; 121-First receiving cavity; 1211-Stop part; 1212-Snap-fit ​​part; 122-Second receiving cavity; 13-First connecting side; 14-Second connecting side; 15-First through hole; 151-Protrusion;

[0034] 2-Quick-connect terminal; 21-Annular connecting part; 211-First end; 212-Second end; 213-Protrusion; 214-Slot; 215-Second through hole; 216-Baffle; 22-Plug-in part; 23-First quick-connect terminal; 24-Second quick-connect terminal; 25-Power terminal; 26-First connecting part; 27-Second connecting part; 3-Wire locking piece; 4-Clip sleeve. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Please see Figure 1-10As shown, this utility model discloses a bathroom heater / ventilation unit (BTU / MAV) with functions such as heating, ventilation, air blowing, and lighting. The BTU / MAV includes a terminal block module 100. The terminal block module 100 is electrically connected to the internal functional modules of the BTU / MAV used to achieve these functions, enabling signal transmission; simultaneously, the terminal block module 100 is also connected to a mechanical switch. The terminal block module 100 ensures reliable internal wiring of the BTU / MAV and prevents accidental screw removal during external wiring by the user, thus ensuring stable overall performance.

[0037] like Figures 1-4 As shown, the terminal block module 100 includes a terminal base 1, quick-connect terminals 2, and a locking member 3. The terminal base 1 is rectangular in shape, and protruding mounting portions 11 are provided on opposite sides of the terminal base 1. The mounting portions 11 are provided with mounting holes (not shown) for fasteners (not shown) to pass through, so that the fasteners can pass through the mounting holes to fix the terminal base 1 on the bathroom heater.

[0038] The terminal base 1 has a plurality of receiving cavities 12 arranged side by side and spaced apart. Multiple quick-connect terminals 2 are provided and correspondingly fitted into the receiving cavities 12. The terminal base 1 has opposing first connecting sides 13 and second connecting sides 14. The receiving cavities 12 extend through the first connecting sides 13 and second connecting sides 14, and include a first receiving cavity 121 near the first connecting side 13 and a second receiving cavity 122 near the second connecting side 14. The quick-connect terminal 2 includes an annular connecting portion 21 and at least one insertion portion 22 extending outward from one end of the annular connecting portion 21. The annular connecting portion 21 is received in the first receiving cavity 121, and the insertion portion 22 is received in the second receiving cavity 122.

[0039] In this embodiment, the first receiving cavity 121 and the second receiving cavity 122 are connected, and the first receiving cavity 121 is located inside the second receiving cavity 122. That is, the cross-section of the first receiving cavity 121 is smaller than the cross-section of the second receiving cavity 122, and the quick-connect terminal 2 is installed into the receiving cavity 12 from the second connection side 14.

[0040] The annular connecting portion 21 of the quick-connect terminal 2 is used to insert one end of a wire (not shown), the other end of which is connected to a mechanical switch. The plug portion 22 is preferably a insert that can be inserted into a corresponding slot inside the bathroom heater that is electrically connected to each functional module via a wire. The slot extends from the second connecting side 14 into the second receiving cavity 122 and engages with the insert, electrically connecting each functional module to the terminal block module 100, thereby achieving electrical connection between each functional module and the mechanical switch. This allows the mechanical switch to control the operating state of each functional module.

[0041] The locking member 3 is adapted to pass through the terminal base 1 and engage with the annular connection portion 21. The locking member 3 is configured to abut against the wire extending into the annular connection portion 21 to fix the wire within the annular connection portion 21. Specifically, the wire extends into the annular connection portion 21 from the first connection side 13, and the terminal base 1 and the annular connection portion 21 have corresponding through holes for the locking member 3 to pass through. The locking member 3 passes through the through holes and extends into the annular connection portion 21 to abut against the wire. Preferably, the terminal base 1 has a plurality of first through holes 15, and the outer wall of the terminal base 1 also has protrusions 151 surrounding the outer periphery of the corresponding first through holes 15. These protrusions 151 are used to increase the creepage distance and improve safety.

[0042] like Figure 4 and Figure 5 As shown, the annular connecting portion 21 is formed by multiple bends at one end of the quick-connect terminal 2. That is, the annular connecting portion 21 is formed by bending around the wire. The annular connecting portion 21 is preferably prismatic in shape and mates with the first receiving cavity 121 to prevent the quick-connect terminal 2 from rotating within the receiving cavity 12. Preferably, a protruding stop portion 1211 is provided on the inner wall of the first receiving cavity 121 near the first connecting side 13, and a protruding snap-fit ​​portion 1212 is provided on the side of the first receiving cavity 121 near the second receiving cavity 122. After the quick-connect terminal 2 is installed into the receiving cavity 12, the end of the annular connecting portion 21 away from the insertion portion 22 abuts against the stop portion 1211, and the end of the annular connecting portion 21 near the insertion portion 22 snaps against the snap-fit ​​portion 1212. This limits the quick-connect terminal 2 in the installation direction of the receiving cavity 12, ensuring that the insertion portion 22 is located within the second receiving cavity 122.

[0043] Specifically, the annular connecting portion 21 includes a first end 211 and a second end 212 stacked on top of each other. One of the first end 211 and the second end 212 has a protrusion 213, and the other has a slot 214. The protrusion 213 engages with the slot 214, thus fixing the first end 211 and the second end 212 of the annular connecting portion 21 together. A second through hole 215 on the annular connecting portion 21 preferably extends through the protrusion 213. Therefore, not only can the connection stability between the first end 211 and the second end 212 be further ensured by the wire locking member 3 passing sequentially through the first through hole 15 and the second through hole 215, but the appearance of the annular connecting portion 21 is also more aesthetically pleasing.

[0044] Of course, in other embodiments, the annular connecting portion 21 may also be integrally formed without the first end 211 and the second end 212, which is not a limitation here.

[0045] When wiring, the user needs to first loosen the corresponding locking piece 3, then insert the corresponding wire into the annular connection part 21, and then tighten the corresponding locking piece 3. In this embodiment, the terminal block module 100 is connected to each functional module through the plug-in part 22, and the wiring process will not cause the internal wires to fall off, resulting in the failure of the whole machine. Preferably, the annular connection part 21 has a bent baffle 216 at one end near the plug-in part 22. The baffle 216 covers the opening at the end of the annular connection part 21 near the plug-in part 22, which can prevent the wire from extending out of the annular connection part 21.

[0046] In this embodiment, the quick-connect terminals 2 are provided in at least two types, and the number of insertion portions 22 of the at least two types of quick-connect terminals 2 is different. In this way, not only can the internal wiring of the bathroom heater be made more reliable, but it is also convenient for users to make wiring during use, ensuring the stable performance of the whole machine.

[0047] like Figure 3 As shown, the quick-connect terminal 2 includes a first quick-connect terminal 23 and a second quick-connect terminal 24. The first quick-connect terminal 23 has at least one plug-in portion 22, and the second quick-connect terminal 24 has at least two plug-in portions 22, with adjacent plug-in portions 22 spaced apart. Preferably, there are multiple first quick-connect terminals 23, and each of the multiple first quick-connect terminals 23 is connected to a corresponding functional module. There is one second quick-connect terminal 23, used for connecting to multiple neutral wires inside the bathroom heater. Optionally, the terminal base 1 is marked for each quick-connect terminal 2, so that each quick-connect terminal 2 is connected to a corresponding functional module and mechanical switch inside the bathroom heater, avoiding wiring errors.

[0048] like Figures 2-6 As shown, in one embodiment, the first quick-connect terminal 23 has one plug-in portion 22, and the second quick-connect terminal 24 has four plug-in portions 22. Each first quick-connect terminal 23 is connected to the live wire of each functional module through the plug-in portion 22, and the four plug-in portions 22 of the second quick-connect terminal 24 are connected to the neutral wire, thereby realizing the functions of heating, ventilation, blowing, and lighting of the bathroom heater, and making the wiring more reliable.

[0049] like Figures 7-9 As shown, in another embodiment, the first quick-connect terminal 23 has two opposing and parallel plug-in portions 22, and the second quick-connect terminal 24 has four plug-in portions 22. The first quick-connect terminal 23 can not only be connected one-to-one with each functional module, but also meet the wiring requirements of a bathroom heater with a digital display function. That is, the digital display module used to implement the digital display function can optionally be connected to another plug-in portion 22 of the first quick-connect terminal 23.

[0050] Of course, in other alternative embodiments, the number of insertion portions 22 of the first quick-connect terminal 23 and the second quick-connect terminal 24 can also be set according to specific requirements, and there is no limitation thereto.

[0051] like Figure 8 and Figure 10 As shown, the quick-connect terminal 2 includes two power terminals 25, which have the same structure as the first quick-connect terminal 23. That is, the plurality of first quick-connect terminals 23 include two power terminals 25. The insertion portions 22 of the two power terminals 25 are connected and conductive within their respective receiving cavities 12. Specifically, the two power terminals 25 are made conductive inside the bathroom heater by means of a retaining sleeve 4 fitted onto their adjacent insertion portions 22. This allows one of the two power terminals 25 to be connected to a mechanical switch, while the other is connected to 220V AC mains power. This not only improves safety but also meets the usage requirements of the high-voltage type terminal block module 100.

[0052] like Figure 5 and Figure 6 As shown, in this embodiment, a first connecting portion 26 is provided between the plug portion 22 of the first quick connector 23 and the annular connecting portion 21, and the first connecting portion 26 extends outward from one side wall of the annular connecting portion 21. The plug portion 22 on the first quick connector 23 and the corresponding side walls of the first connecting portion 26 and the annular connecting portion 21 are located on the same plane.

[0053] A second connecting portion 27 is provided between the insertion portion 22 and the annular connecting portion 21 of the second quick-connect terminal 24. This second connecting portion 27 extends outward from one side wall of the annular connecting portion 21 and is bent away from the annular connecting portion 21. The insertion portion 22 on the second quick-connect terminal 24 and the corresponding side wall of the annular connecting portion 21 are located on different planes. That is, the insertion portion 22 of the second quick-connect terminal 24 is arranged around the outer side of one end of the corresponding annular connecting portion 21. At least one of the four insertion portions 22 of the second quick-connect terminal 24 is connected to the annular connecting portion 21 via the second connecting portion 27.

[0054] In this embodiment, the four plug-in portions 22 are bent multiple times to interlock end to increase the connection strength between the plug-in portions 22 and ensure a more reliable connection. Of course, in other embodiments, the four plug-in portions 22 may also be formed by extending outward from the four side walls of the annular connecting portion 21, with the four plug-in portions 22 spaced apart from each other.

[0055] In summary, the terminal block module 100 of this invention, by configuring at least two types of quick-connect terminals 2 within the receiving cavity 12 of the terminal base 1, and by having different numbers of insertion portions 22 for each type of quick-connect terminal 2, allows signal transmission between multiple functional modules to be achieved using these insertion portions 22 after the wire is inserted into the annular connecting portion 21, without the need for multiple wires for separate signal transmission. Compared to the prior art, the terminal block module 100 of this invention not only ensures reliable internal wiring of the bathroom heater but also prevents accidental screw removal during external wiring by the user, thus ensuring stable overall performance.

[0056] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model.

Claims

1. A terminal block module, characterized in that, include: The terminal base (1) is provided with multiple receiving cavities (12) arranged side by side and spaced apart; The quick-connect terminal (2) is provided in multiple and is correspondingly assembled in the receiving cavity (12). The quick-connect terminal (2) includes an annular connecting part (21) for inserting wires and at least one plug-in part (22) extending outward from one end of the annular connecting part (21). The quick-connect terminal (2) is provided in at least two types, and the number of plug-in parts (22) of the at least two types of quick-connect terminals (2) is different. A locking member (3) is adapted to pass through the terminal base (1) and engage with the annular connection portion (21), and is configured to abut against a wire extending into the annular connection portion (21) to secure the wire within the annular connection portion (21).

2. The terminal block module according to claim 1, characterized in that: The terminal base (1) has a first connecting side (13) and a second connecting side (14) facing each other. The receiving cavity (12) passes through the first connecting side (13) and the second connecting side (14) and includes a first receiving cavity (121) near the first connecting side (13) and a second receiving cavity (122) near the second connecting side (14). The annular connecting part (21) is received in the first receiving cavity (121) and the plug-in part (22) is received in the second receiving cavity (122).

3. The terminal block module according to claim 2, characterized in that: The cross-section of the first receiving cavity (121) is smaller than the cross-section of the second receiving cavity (122), and the quick-connect terminal (2) is installed into the receiving cavity (12) from the second connection side (14).

4. The terminal block module according to claim 2, characterized in that: The wire extends into the annular connection portion (21) from the first connection side (13). The terminal base (1) and the annular connection portion (21) are respectively provided with through holes for the locking wire member (3) to pass through. The locking wire member (3) passes through the through holes and extends into the annular connection portion (21) to abut against the wire.

5. The terminal block module according to claim 1, characterized in that: The quick-connect terminal (2) includes a first quick-connect terminal (23) and a second quick-connect terminal (24). The first quick-connect terminal (23) is provided with at least one plug-in portion (22), and the second quick-connect terminal (24) is provided with at least two plug-in portions (22), and adjacent plug-in portions (22) are spaced apart.

6. The terminal block module according to claim 5, characterized in that: The first quick-connect terminal (23) has one of the aforementioned plug-in portions (22), and the second quick-connect terminal (24) has four of the aforementioned plug-in portions (22).

7. The terminal block module according to claim 5, characterized in that: The first quick-connect terminal (23) has two opposite and parallel plug portions (22), and the second quick-connect terminal (24) has four plug portions (22).

8. The terminal block module according to claim 1, characterized in that: The annular connecting portion (21) is formed by bending around the conductor; the annular connecting portion (21) includes a first end (211) and a second end (212) stacked on top of each other, one of the first end (211) and the second end (212) is provided with a protrusion (213) and the other is provided with a slot (214), the protrusion (213) being engaged with the slot (214).

9. The terminal block module according to claim 1, characterized in that: The quick-connect terminal (2) includes two power terminals (25), and the plug portions (22) of the two power terminals (25) are connected and conductive in the corresponding receiving cavity (12).

10. A bathroom heater, characterized in that, Includes the terminal block module as described in any one of claims 1-9.

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