Microswitch integration

Abstract

The invention discloses an integration of a microswitch, and relates to the technical field of automobile door locks and EKT parts, the integration of the microswitch comprises a shell, at least three contact switches are installed on the shell, the contact switches are installed on the same side of the shell, the contact switches are vertically arranged at the outer end part of the shell, and the contact switches are connected with the shell. And the projections of the contact switches relative to the outer end part of the shell are arranged in a staggered manner. The contact switches are concentrated in the same area of the outer wall of the shell, the projections of all the contact switches along the outer wall of the shell are not overlapped, the EKT switch installation process is simplified, that is, all the switches are fixed and installed through one-time clamping, operation such as rotating and turning over is not needed, and efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile door locks and EKT components, and in particular to the integration of a micro switch. Background Art

[0002] In the structure of today's car door locks, the use of contact switches has become very popular. Similar to the application number "CN216197307U" in the prior art. In actual use, the design of the contact switch varies according to the functional requirements, and as a result, it directly affects the manufacturing process and cost. According to the structural form, the switch and the groove of the prior art face different directions, which means that multiple clamping is required. The process cycle is long and the production efficiency is low; and the switches are distributed throughout the lock body, and the corresponding trigger structure occupies a large amount of structural space. Summary of the invention

[0003] The purpose of the present invention is to solve the problem in the prior art that the switch and the groove face different directions, multiple clamping is required, and the corresponding trigger structure occupies a large amount of structural space, and discloses an integrated micro switch.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A micro switch assembly includes a shell, on which at least three contact switches are mounted. The contact switches are mounted on the same side of the shell, are vertically disposed at the outer end of the shell, and are offset relative to the projection of the outer end of the shell.

[0006] Preferably, glue-filling grooves corresponding to the number of the contact switches are vertically provided at the outer end of the shell, and the contact switches therein are encapsulated by glue in the glue-filling grooves.

[0007] Preferably, the number of the contact switches is at least three.

[0008] Preferably, the contact switches located at both ends are triggered by a cam structure.

[0009] Preferably, the cam structure is a rotating cam, and the outer wall of the rotating cam includes a contact surface A and an avoidance surface A, and the inner diameter of the avoidance surface A is smaller than the inner diameter of the contact surface A.

[0010] Preferably, the contact switch located in the middle is arranged perpendicular to the outer wall of the shell and is triggered by a reciprocatingly sliding convex strip structure.

[0011] Preferably, the reciprocatingly sliding convex strip structure is a slide bar, the slide bar slides linearly on the shell, and a resistance groove is provided on the slide bar, the resistance groove includes a resistance surface B and an avoidance surface B, and the depth of the avoidance surface B is greater than the depth of the resistance surface B.

[0012] Preferably, the slide bar is driven by an actuating portion, and the actuating portion is any one of a worm gear driven by a motor or a manual pull rod.

[0013] Preferably, when the number of the contact switches is at least four, the contact switches located in the middle are arranged side by side, and the contact directions of two adjacent contact switches are arranged in opposite directions;

[0014] The reciprocating convex strip structures are symmetrically arranged, and after the two reciprocating convex strip structures are driven by the actuating part, the linear motion directions are parallel.

[0015] Preferably, an electrical conductor structure is provided in the housing, the electrical conductor structure comprising a common end and a shunt end, the common end is electrically connected to a plurality of the contact switches, and the shunt end is electrically connected to a single contact switch.

[0016] The beneficial effects of the present invention are:

[0017] In the present invention, the contact switches are concentrated in the same area of ​​the outer wall of the housing, and all the contact switches are projected along the outer wall of the housing without overlapping each other, which simplifies the process of installing the switches by EKT, that is, all the switches are installed by clamping and fixing once, without the need for rotation, flipping, etc., thereby improving efficiency. At the same time, the compactly arranged cam structure reduces space occupation and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the integrated structure of a micro switch proposed by the present invention;

[0019] Figure 2 A diagram showing the integrated middle contact switch of a micro switch proposed by the present invention in a state ready for installation;

[0020] Figure 3 A state diagram of adding a colloid in the integration of a micro switch proposed by the present invention;

[0021] Figure 4 This is a structural diagram of the switch state of the integrated rotating cam triggering contact of a micro switch proposed by the present invention;

[0022] Figure 5 This is a structural diagram of the integrated rotating cam releasing contact switch state of a micro switch proposed by the present invention;

[0023] Figure 6This is a structural diagram of the switch state of the integrated sliding convex strip triggering contact of a micro switch proposed by the present invention;

[0024] Figure 7 This is a structural diagram of the integrated sliding convex strip releasing the contact switch state of a micro switch proposed by the present invention;

[0025] Figure 8 This is a structural diagram of the electrical connection end of the integrated middle contact switch of a micro switch proposed by the present invention;

[0026] Fig. 9 An electrical connection diagram of an integrated middle contact switch and a common ground wire of a micro switch proposed by the present invention;

[0027] Fig.10 This is a structural diagram of a micro switch integrated with a resistor R1 and a resistor R2 connected in series.

[0028] In the figure: 1, housing; 11, rotating cam 1; 21, rotating cam 2; 31, sliding convex strip 1; 41, sliding convex strip 2; 2, common ground wire. DETAILED DESCRIPTION

[0029] An integrated micro switch, including a housing 1, referring to Figure 1 At least three contact switches are installed on the shell 1, and the contact switches are marked S in the figure. The contact switches are installed on the same side of the shell 1, and the contact switches are vertically arranged at the outer end of the shell 1, and the contact switches are staggered relative to the projection of the outer end of the shell 1.

[0030] It should be noted that the housing 1 is also commonly referred to as EKT or ECC, which integrates micro switches, wire terminals, motor terminals, plugs and other structures, and is used between the door lock and the body circuit to feedback the internal status of the door lock to the body, or input current into the door lock to drive the motor and other actions.

[0031] The contact switches are installed on the same side of the housing, concentrated in the same area, along Figure 1 and Figure 2 The X direction of the installation, all contact switches along the projection of this direction do not overlap each other. The purpose of this is to simplify the process of EKT installation switch, that is, through one-time clamping and fixing, all contact switches can be installed without rotation, flipping and other operations, which improves efficiency.

[0032] The contact switch used in the door lock usually adopts a process structure including but not limited to sealing and glue filling to achieve the purpose of physical isolation from the external environment of the housing 1. Figure 2 After the middle contact switch is installed, a glue-filling groove is provided on the housing 1 at the location of the contact switch output terminal. Figure 3As shown, the liquid jelly is poured into the glue pouring groove. Figure 3 The colloid in the figure is marked as P, and then it is transformed into a cross-linked body or solid through natural curing, thermal curing or ultraviolet curing, thereby isolating the switch terminals, the internal circuit and the outside of the shell, providing electrical insulation, corrosion resistance and mechanical connection performance.

[0033] It should be added that the contact switch has certain requirements on the position and direction of the shell 1 during the process of encapsulating the contact switch with colloid. Usually, the glue-filling groove is required to be upward to facilitate the injection of colloid, exhaust air at the same time, and prevent the uncured colloid from flowing out. In the prior art, for example, the contact switch and the glue-filling groove of the application with the application number "CN113789998A" face different directions, so multiple clamping is required to achieve the position requirements of the above process, resulting in a long process cycle and low production efficiency. Figure 1 and Figure 2 The switch set in the X direction can be clamped once and moved along Figure 1 and Figure 2 The X direction can realize glue filling and curing at one time, which improves productivity.

[0034] Further, according to the requirements of the door lock structure, the number of contact switches is at least three, and the contact switches located at the two ends are contact switch S1 and contact switch S2, respectively, and each uses the corresponding rotating cam 11 and rotating cam 21 structures located at the end to trigger its operation. Figure 4 and Figure 5 As shown, the typical driving structure includes but is not limited to the rotating structures such as the card plate and pawl of the door lock. The specific structure is shown in the application number "CN112177453A" in the prior art. It should be clarified that: the cam structure is a rotating cam, and the outer wall of the rotating cam includes a resistance surface and an avoidance surface. The inner diameter of the avoidance surface is smaller than the inner diameter of the resistance surface, but the structure is not limited to the rotating cam structure of all ends, and the triggering of its operation should fall within the protection scope of this patent.

[0035] When the number of contact switches is at least four, the contact switches located in the middle are arranged side by side, and the contacts of two adjacent contact switches are arranged in opposite directions. In this embodiment, taking the number of contact switches as four as an example, the contact switches located in the middle are contact switch S3 and contact switch S4, and the contacts of contact switch S3 and contact switch S4 are arranged perpendicular to the outer wall of the shell, and then the convex strip structure that slides back and forth parallel to the end and close to the contact switch is used to trigger its operation. Figure 6 and Figure 7, contact switch S3 and sliding convex strip 1 31, contact switch S4 and sliding convex strip 2 41. In particular, according to the functional requirements of the door lock, there may be only contact switch S3, only contact switch S4, or both contact switch S3 and contact switch S4.

[0036] It should be noted that the reciprocating convex strip structure is a slide bar, that is, the sliding convex strip 1 31 and the sliding convex strip 2 41 are slide bars, the slide bars slide linearly in the housing, and the slide bars are provided with a conflicting groove, the conflicting groove includes a conflicting surface B and an avoidance surface B, and the depth of the avoidance surface B is greater than the depth of the conflicting surface B. This structure provides the possibility of mechanically connecting the two ends of the sliding convex strip 1 31 and the sliding convex strip 2 41, that is, along Figure 6 and Figure 7 The mechanical movement in the Z direction is transmitted from the upper end to the lower end, or vice versa, forming a certain pull rod or push rod structure. The slide bar is driven by an actuator, which is any one of a worm gear driven by a motor or a manual pull rod.

[0037] If two contact switches S3 and S4 located in the middle exist at the same time, and the main bodies of the contact switches S3 and S4 are arranged side by side, and the switch contacts of the contact switches S3 and S4 are staggered and symmetrically arranged toward the left and right sides of the housing 1, respectively, the corresponding sliding convex strips 1 31 and 2 convex strips 41 are respectively located on both sides of the housing 1, respectively triggering the operation of the contact switches S3 and S4. Figure 6 and Figure 7 , the contact switch S3 and the contact switch S4 face both sides, the sliding convex strip 1 31 and the sliding convex strip 2 41 are respectively located on the left and right sides of the housing 1, and the sliding convex strip 1 31 and the sliding convex strip 2 41 are driven by the actuator to slide independently along the Z direction to trigger the switch action. In particular, the movements of the two can be independent of each other. This structural design realizes the vertical Figure 6 and Figure 7 The cross section in the Z direction requires the least space, thus compressing the volume of the entire structure and optimizing costs.

[0038] According to the specific sliding ridge 1 31, sliding ridge 2 41, rotating cam 1 11 and rotating cam 2 21, contact switch S1, contact switch S2, contact switch S3 and contact switch S4 can be designed to be in a free state under normal conditions, in which the contacts of the contact switches are squeezed and triggered; they can also be designed to be in a compressed state under normal conditions, in which the contacts of the contact switches are triggered when they are not squeezed.

[0039] An electrical conductor structure such as a copper wire connected to the contact switch is arranged inside the housing 1, and its purpose is to output the signal of the contact switch to the outside of the housing.

[0040] The contact switches use a structure that at least part of the conductor is shared. Figure 8 To achieve the purpose of saving costs and simplifying the structure, the specific electrical conductor structure includes a common end and a shunt end, the common end is electrically connected to a plurality of the contact switches, and the shunt end is electrically connected to a single contact switch. Fig. 9 A common ground wire 2 structure; optionally, the contact switch can be connected by a resistor to achieve the purpose of multiplexing the terminal. Fig.10 The resistors R1 and R2 are connected in series with the switch to achieve repeated use of terminals. The above designs save costs.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An assembly of a micro switch, comprising a housing, characterized in that: At least three contact switches are installed on the shell, the contact switches are installed on the same side of the shell, and the contact switches are vertically arranged at the outer end of the shell.

2. The integration of a micro switch according to claim 1, characterized in that: The outer end of the shell is vertically provided with glue-filling grooves corresponding to the number of the contact switches, and the contact switches therein are encapsulated by glue.

3. The integration of a micro switch according to claim 1, characterized in that: The contact switch is arranged in a staggered manner relative to the projection of the outer end of the shell.

4. The integration of a micro switch according to claim 3, characterized in that: The contact switches located at both ends are triggered by a cam structure.

5. The integration of a micro switch according to claim 4, characterized in that: The cam structure is a rotating cam, and the outer wall of the rotating cam includes a contact surface A and an avoidance surface A, and the inner diameter of the avoidance surface A is smaller than the inner diameter of the contact surface A.

6. The integration of a micro switch according to claim 3, characterized in that: The contact switch located in the middle is arranged perpendicular to the outer wall of the shell and is triggered by a reciprocatingly sliding convex strip structure.

7. The integration of a micro switch according to claim 6, characterized in that: The reciprocating convex strip structure is a slide bar, which slides linearly on the shell and is provided with a resistance groove, which includes a resistance surface B and an avoidance surface B, and the depth of the avoidance surface B is greater than the depth of the resistance surface B.

8. The integration of a micro switch according to claim 7, characterized in that: The slide bar is driven by an actuating part, and the actuating part is any one of a worm gear driven by a motor or a manual pull rod.

9. The integration of a micro switch according to claim 7, characterized in that: When the number of contact switches is at least four, the contact switches located in the middle are arranged side by side, and the contact directions of two adjacent contact switches are arranged in opposite directions; The reciprocating convex strip structures are arranged symmetrically, and after the two reciprocating convex strip structures are driven by the actuating part, the linear motion directions are parallel.

10. The integration of a micro switch according to claim 1, characterized in that: An electric conductor structure is arranged in the shell, and the electric conductor structure includes a common end and a shunt end. The common end is electrically connected to a plurality of the contact switches, and the shunt end is electrically connected to a single contact switch.

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