Strong-current and weak-current double-control switch assembly

Abstract

The utility model discloses a strong-current and weak-current double-control switch assembly, which comprises a shell and a button movably connected with the shell, and is characterized in that the shell is provided with a weak-current lug plate used for being connected with an external weak-current circuit and a strong-current lug plate used for being connected with an external strong-current circuit; the button is provided with an action end located in the shell, and when the button acts, the action end directly or indirectly enables the parts, located in the shell, of the strong current lug plate and the weak current lug plate to be independently connected or disconnected. According to the utility model, through the integrated shell structure design, the integrated switch is realized through the strong current and weak current circuits controlled by the button, and meanwhile, the good comprehensive consideration of safety and cost can be realized aiming at the characteristics of the strong current and the weak current through different internal trigger on-off mechanism structures.

Description

Technical Field

[0001] The utility model belongs to the technical field of switches, and in particular relates to a strong and weak current dual-control switch component. Background Art

[0002] In the new energy vehicle sector, numerous mixed power and weak current circuit systems are integrated within the vehicle, requiring reliable switching devices for precise circuit control and on / off management. Currently, there are two main types of power and weak current control switches for new energy vehicles on the market. One type is a stand-alone switch, in which the power and weak current switches are separated, each controlling a different circuit. While this solution can meet basic circuit on / off requirements, it suffers from large space requirements, complex installation, and high costs, which contradicts the trend of lightweight and integrated new energy vehicles. Furthermore, multiple independent switches require more manual operation and debugging during assembly, increasing production time and the probability of error.

[0003] The other type is partially integrated switches, which attempt to integrate strong and weak current control functions into the same device. However, most of these switches use traditional contact structures to handle strong current circuits. The high-frequency switching process will accelerate the erosion and wear of the contacts, shorten the service life of the switch, and may also cause circuit failures or even fire safety hazards. In addition, the electromagnetic interference generated by the arc will affect the weak current signal circuits in new energy vehicles, resulting in unstable or distorted signal transmission. For weak current signal circuits, existing integrated switches often do not fully consider the particularities of the mixed layout of strong and weak currents, and do not take effective isolation and protection measures. When the strong and weak current connectors are too close, the electromagnetic coupling and conducted interference generated by the strong current can easily be injected into the weak current circuit, affecting the accuracy and stability of the signal, and thus interfering with the normal operation of the electronic control system of the new energy vehicle.

[0004] Currently, there is a lack of switching devices that can simultaneously meet the needs of mixed control of strong and weak electricity, effectively avoid strong electricity arc problems and strong and weak electricity interference problems, and have the advantages of integration and modularity. These devices are difficult to adapt to the increasingly complex circuit systems and stringent performance requirements of new energy vehicles. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a high-voltage and low-voltage dual-control switch assembly, which can improve its integrity while ensuring safety through a button-type structure and the structure and connection design of the internally integrated high-voltage and low-voltage wiring pieces.

[0006] The technical solution adopted by this utility model is:

[0007] In a first aspect, the utility model provides a strong and weak current dual-control switch assembly, comprising a housing and a button movably connected to the housing, wherein the housing is provided with a weak current connection piece for connecting to an external weak current line, and a strong current connection piece for connecting to an external strong current line;

[0008] The button has an action end extending into the interior of the housing. When the button is actuated, the action end directly or indirectly causes the parts of the strong current wiring piece and the weak current wiring piece inside the housing to be turned on or off separately and synchronously.

[0009] In combination with the first aspect, the present utility model provides a first implementation of the first aspect, wherein two high-voltage wiring lugs are provided on the housing, and a high-voltage connector is provided inside the housing;

[0010] Each high-voltage wiring piece has a connection end in the shell, and the high-voltage connector has a contact portion connected to the connection end of the high-voltage connector 7 inside the shell. The action end pushes the high-voltage connector 7 to simultaneously contact the connection ends of the two high-voltage wiring pieces in the shell to form conduction.

[0011] In combination with the first embodiment of the first aspect, the present invention provides a second embodiment of the first aspect, wherein a contact is provided on the connection end of the high-voltage wiring piece, and the contact portion of the high-voltage connector 7 contacts the contact for electrical conduction.

[0012] In combination with the first embodiment of the first aspect, the utility model provides a third embodiment of the first aspect, wherein a buffer spring is provided on the action end to exert a force on the high-voltage connector 7 to always move toward the high-voltage wiring piece and contact the conduction direction.

[0013] In combination with the first aspect, the utility model provides a fourth embodiment of the first aspect, wherein two weak-current wiring lugs are provided on the shell, and the action end causes the connection end of at least one weak-current wiring lug to displace and contact the connection end of the other weak-current wiring lug to achieve conductivity.

[0014] In combination with the fourth embodiment of the first aspect, the utility model provides a fifth embodiment of the first aspect, wherein at least one of the weak-current wiring pieces is provided with a bending portion, and the action end causes the bending portion to bend to form displacement of the connection end.

[0015] In combination with the fourth embodiment of the first aspect, the utility model provides a sixth embodiment of the first aspect, wherein a movable pushing block is further provided in the shell, the action end of the button is in contact and linkage with the pushing block, the pushing block movably contacts at least one low-voltage wiring piece to deform and form a displacement of the connection end, and a reset spring is provided between the pushing block and the shell.

[0016] In combination with the first aspect or several implementations of the first aspect, the present utility model provides a seventh implementation of the first aspect, wherein the button is provided with a prompt light for indicating the button pressing status.

[0017] In combination with the first aspect or several embodiments of the first aspect, the utility model provides an eighth embodiment of the first aspect, wherein the shell includes an upper shell and a bottom shell that are interlocked with each other, the high-voltage wiring piece and the low-voltage wiring piece are both arranged in the bottom shell, and the upper shell has a through groove for clamping and limiting the movement of the button.

[0018] In combination with the eighth embodiment of the first aspect, the utility model provides a ninth embodiment of the first aspect, wherein the bottom shell is provided with a pressing rod that provides a multi-stage breaking and locking limiting effect for the button and a pressing spring that provides a reset force toward the outside of the shell.

[0019] The beneficial effects of the utility model are:

[0020] The utility model realizes an integrated switch of the strong and weak current circuits controlled by buttons through an integrated shell structure design, and at the same time can achieve better comprehensive considerations of safety and cost by targeting the characteristics of strong and weak current through the structure of different internal trigger on-off mechanisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an overall plan view of the double-control switch assembly in the embodiment of the utility model;

[0022] Figure 2 This is the first isometric view of the entire double-control switch assembly in the embodiment of the present utility model;

[0023] Figure 3 This is a second isometric view of the entire double-control switch assembly in the embodiment of the present utility model;

[0024] Figure 4 This is a first isometric view of the dual-control switch assembly after disassembly in the embodiment of the utility model;

[0025] Figure 5 This is a second isometric view of the dual-control switch assembly after disassembly in the embodiment of the utility model;

[0026] Figure 6 This utility model Figure 5 A local enlarged schematic diagram;

[0027] Figure 7 This is a third isometric view of the double-control switch assembly after disassembly in the embodiment of the utility model;

[0028] Figure 8 This utility model Figure 7 A local enlarged schematic diagram of B in FIG.

[0029] Figure 9 This is a first axonometric view of the internal structure of the housing in an embodiment of the present utility model;

[0030] Figure 10 It is a second axonometric view of the internal structure of the shell in the embodiment of the present utility model.

[0031] In the figure: 1-button, 2-upper shell, 3-bottom shell, 4-high-voltage wiring lug, 5-low-voltage wiring lug, 501-bending portion, 6-indicator light, 7-high-voltage connector, 8-pushing block, 9-reset spring, 10-contact, 11-pressing spring, 12-pressing lever, 13-buffer spring, 14-locking slot. DETAILED DESCRIPTION

[0032] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0036] In the description of this application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0037] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not necessarily imply that a component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical" and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0038] It should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. A person of ordinary skill in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0039] Example 1:

[0040] This embodiment discloses a high-voltage and low-voltage dual-control switch assembly, which is mainly a modular integrated structure and can be installed in any electrical control structure with a mounting position to realize the opening and closing control of the circuit.

[0041] The switch assembly comprises a housing structure equipped with a set of high-voltage wiring lugs 4, which are separately connected to external high-voltage circuits, and a set of low-voltage wiring lugs 5. The housing has a through slot that connects to the interior, within which is located a button 1, which is slidably connected by contact with the inner wall of the slot. The button 1 has an actuating end within the housing, and a flange is provided around the actuating end to prevent the button 1 from falling out of the slot.

[0042] The housing is also provided with a compression spring 11 for cooperating with the button 1 to achieve reset. The compression spring 11 provided inside the housing exerts a force on the button 1 to always move toward the outside of the housing. A structure is provided inside the housing to limit the button 1 to achieve multi-stage pressing, and this structure has several implementation methods.

[0043] As an implementation method, an elastic snap-fit ​​structure is provided at the position where the through slot or the shell contacts the button 1, or a movable snap-fit ​​structure is provided at the corresponding position of the button 1, and a snap-fit ​​slot is provided in the shell or at the button 1. Through the cooperation of the snap-fit ​​structure and the snap-fit ​​slot, at least two-stage position limiting is achieved, thereby realizing the conversion of the button 1 into the open / closed state.

[0044] As an implementation method, the spring structure of the button 1 is used to always give the button 1 a tendency to move outward, and a slot structure is provided on the button 1 or the inner wall of the through slot, referring to Figure 10The structure on the right side of the middle is a lock groove 14 structure provided on the inner side wall of the button 1. The lock groove 14 structure includes an entry locking section and a disengagement unlocking section, similar to the pressing principle of a ballpoint pen. A corresponding pressing rod 12 is provided in the housing or on the button 1. The pressing rod 12 has an end portion that is inserted into the lock groove 14, and the limiting is achieved by switching between the entry locking section and the disengagement unlocking section. That is, when the button 1 is pressed downward, if it is in the unlocked state, by continuing to press downward, the end portion of the pressing rod 12 enters a state transition area. When the button 1 loses its thrust, the locking restriction between the pressing rod 12 and the lock groove 14 disengages the button 1. Similarly, when unlocking, continuing to press the button 1 downward forms a state transition, and the pressing spring 11 provides sufficient reset force.

[0045] Furthermore, in this embodiment, different on-off modes are provided for the high-voltage wiring piece 4 for connecting to the external high-voltage circuit and the low-voltage wiring piece 5 for connecting to the external low-voltage circuit on the shell, because the effect to be achieved is that a single button 1 controls the on-off of two groups of circuits at the same time, but the high-voltage circuit needs to consider reliability and safety, and the indicators required for the low-voltage circuit are lower, so the volume needs to be reduced due to cost considerations. In order to meet the above conditions, this embodiment designs two different trigger on-off modes.

[0046] Specifically, as a triggering on-off method for connecting the high-voltage line, a high-voltage connector 7 that can be linked with the button 1 is provided in the shell structure in this embodiment. Since the two high-voltage wiring pieces 4 in the shell are in an interval setting state, the connection ends of the two high-voltage wiring pieces 4 inside the shell are simultaneously connected by a high-voltage connector 7, which can achieve better connection effect and safety performance.

[0047] Reference Figures 1-9 The figure shows the structure of the strong electric connector 7. It can be seen that the two strong electric wiring pieces 4 provided in the shell have a clamping end fixedly connected to the shell in the shell, and also have a connection end with an enlarged area. A contact 10 is provided at the end of the connection end, which is generally made of a material with a longer service life and can maintain structural stability after long-term contact.

[0048] The strong electric connector 7 is a conductive strip structure made of the same material, and an inverted contact is also provided at both ends. The button 1 drives the strong electric connector 7 to move horizontally downward, so that the two contacts contact the contact 10 to achieve conductivity on both sides.

[0049] Further, refer to Figure 10The button 1 is provided with two protrusions. The lower protrusion in the figure has a sunken platform on which the strong electric connector 7 is placed, which has a certain limiting effect. At the same time, the upper protrusion provides support and a fixed position for the buffer spring 13. One end of the buffer spring 13 is fixed to the protrusion, and the other end rests on the middle part of the strong electric connector 7, giving the strong electric connector 7 a downward force, pressing it against the sunken platform of the lower protrusion.

[0050] When the button 1 moves downward, the buffer spring 13 provides the strong electric connector 7 with a force to follow the button 1 downward. When the contact of the strong electric connector 7 contacts the contact 10, it will receive an upward reaction force. At this time, if the reaction force exceeds the force of the buffer spring 13, the position of the strong electric connector 7 will be kept fixed, compressing the buffer spring 13. This structure can ensure that the strong electric connector 7 will not be deformed by force even when an excessive force is applied to the button 1.

[0051] Furthermore, in this embodiment, for the triggering opening and closing mode of the weak current line, refer to Figure 9 The housing houses a push block 8, a wedge-shaped slider with a linear motion. When button 1 contacts the wedge-shaped surface of push block 8, it converts the downward force into a horizontal thrust, causing two adjacent weak-current terminals 5 in the path of push block 8 to contact and conduct.

[0052] Among them, two weak-current connecting pieces 5 are located inside the housing, and at least one weak-current connecting piece 5 has a bent portion 501. This bent portion 501 is designed as a circular arc structure with good bending and deformation capabilities. The weak-current connecting piece with the bent portion 501 will first contact the push block 8. The push block 8 then squeezes the weak-current connecting piece, causing it to bend and deform, and finally contact the other weak-current connecting piece, thereby achieving conduction between the two connection ends.

[0053] On one side of the push block 8, a return spring 9 is provided to provide a force to the push block 8 in the direction of disengagement. When the button 1 is pressed, it will be subjected to the reverse force given by its own pressing spring 11 and the force of the push block 8.

[0054] Furthermore, the switch assembly in this embodiment is a detachable structure, including an upper shell 2 and a bottom shell 3 that are fastened to each other by snaps, wherein the upper shell 2 has a through groove for limiting the reciprocating motion of the button 1, and the bottom shell 3 is used to place the high-current connector 7, the low-current connector, the pressing spring 11, the pressing rod 12 and other limiting structures.

[0055] A reminder light 6 is further provided inside the button 1. The reminder light 6 indicates the position of the button 1 by lighting up or changing its color, and can also be used to indicate the current state of circuit connectivity.

[0056] The present invention is not limited to the above optional embodiments. Anyone can derive various other forms of products based on the inspiration of the present invention. The above specific embodiments should not be construed as limiting the scope of protection of the present invention. The scope of protection of the present invention shall be based on the scope defined in the claims, and the specification can be used to interpret the claims.

Claims

1. A strong and weak current dual-control switch assembly, characterized by: The invention comprises a housing and a button (1) movably connected to the housing, wherein the housing is provided with a weak-current wiring piece (5) for connecting to an external weak-current line, and a strong-current wiring piece (4) for connecting to an external strong-current line; The button (1) has an action end extending toward the interior of the housing. When the button (1) is actuated, the action end directly or indirectly causes the parts of the strong current wiring piece (4) and the weak current wiring piece (5) located inside the housing to be individually and synchronously turned on or off.

2. The high-voltage and low-voltage dual-control switch assembly according to claim 1, characterized in that: Two strong-electricity connecting pieces (4) are provided on the housing, and a strong-electricity connecting piece (7) is provided inside the housing; Each strong electric connecting piece (4) has a connection end in the housing, and the strong electric connecting piece (7) has a contact portion connected to the connection end of the strong electric connecting piece (4) in the housing, and the action end pushes the strong electric connecting piece (7) to simultaneously contact the connection ends of the two strong electric connecting pieces (4) in the housing to form conduction.

3. The high-voltage and low-voltage dual-control switch assembly according to claim 2, characterized in that: A contact (10) is provided on the connection end of the high-voltage wiring piece (4), and the contact portion of the high-voltage connector (7) contacts the contact (10) for electrical conduction.

4. The high-voltage and low-voltage dual-control switch assembly according to claim 2, characterized in that: A buffer spring (13) is provided on the action end to impart a force to the strong current connector (7) so that it always moves toward the strong current wiring piece (4) and contacts the conducting direction.

5. The high-voltage and low-voltage dual-control switch assembly according to claim 1, characterized in that: Two weak-current connecting pieces (5) are provided on the housing, and the action end is actuated so that the connection end of at least one weak-current connecting piece (5) is displaced to contact the connection end of another weak-current connecting piece (5) to achieve electrical conduction.

6. The high-voltage and low-voltage dual-control switch assembly according to claim 5, characterized in that: At least one of the weak current connecting pieces (5) is provided with a bending portion (501), and the action end causes the bending portion (501) to bend to form a displacement of the connection end.

7. The high-voltage and low-voltage dual-control switch assembly according to claim 5, characterized in that: A movable push block (8) is further provided in the housing. The action end of the button (1) is in contact with the push block (8) in a linked manner. The push block (8) movably contacts at least one weak-current wiring piece (5) to deform and form a displacement of the connection end. A reset spring (9) is provided between the push block (8) and the housing.

8. A high-voltage and low-voltage dual-control switch assembly according to any one of claims 1 to 7, characterized in that: The button (1) is provided with a prompt light (6) for prompting the pressing state of the button (1).

9. A high-voltage and low-voltage dual-control switch assembly according to any one of claims 1 to 7, characterized in that: The housing comprises an upper shell (2) and a bottom shell (3) that are engaged with each other, the strong current wiring piece (4) and the weak current wiring piece (5) are both arranged in the bottom shell (3), and the upper shell (2) has a through slot for clamping and limiting the movement of the button (1).

10. The high-voltage and low-voltage dual-control switch assembly according to claim 9, characterized in that: The bottom shell (3) is provided with a pressing rod (12) for providing a multi-stage breaking and locking limiting effect for the button (1), and a pressing spring (11) for providing a reset force toward the outside of the shell.

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