Transmission box body

Abstract

The transmission box body comprises a main box body, an inner support and a cover plate, the cover plate covers an opening of the main box body in a sealing mode, the inner support divides the interior of the transmission box body into a front transmission cavity and a rear transmission cavity, the inner support is provided with a detection channel communicated with the front transmission cavity and the rear transmission cavity, and the detection channel is communicated with the front transmission cavity and the rear transmission cavity. One of the front transmission cavity and the rear transmission cavity is used for installing a dimming transmission assembly, the other one is used for installing an opening and closing transmission assembly, and the detection channel is used for installing a circuit board. The inner support is located in the main box body and divides the space, the detection channel penetrates through the inner support to communicate the front transmission cavity with the rear transmission cavity so that the circuit board can stretch across the inner support and perform parameter detection, and the space layout is reasonable. The inner support is provided with a detection channel, and the influence on the appearance size of the transmission box is small.

Description

Technical Field

[0001] The utility model relates to the technical field of light shielding, in particular to an electric curtain, and more particularly to a transmission box body. Background Art

[0002] The electric curtain transfers the track device and the power device through the transmission box device. The transmission box device is provided with a hollow transmission box body, which is composed of multiple thin-wall structures and divides the space inside the transmission box body. For example, a curtain transmission box with dual power output disclosed in Chinese patent document CN216875950U is composed of multiple components.

[0003] The transmission box body is provided with a gear transmission structure. However, the existing transmission box body is not provided with a detection element for detecting the rotation stroke of the gear, and there is no sufficient installation space reserved, nor is there a corresponding connection interface space. There are technical problems such as unreasonable space and large structural volume during the cooperation of the transmission box body, so improvement is needed. Summary of the Utility Model

[0004] To overcome the problems in the related art, an embodiment of the utility model provides a transmission box body.

[0005] According to the first aspect of the embodiment of the utility model, a transmission box body is provided. The transmission box body includes a main box body, an inner bracket and a cover plate. The cover plate seals the opening of the main box body. The inner bracket divides the inside of the transmission box body into a front transmission cavity and a rear transmission cavity. The inner bracket is provided with a detection channel connecting the front transmission cavity and the rear transmission cavity. One of the front transmission cavity and the rear transmission cavity is used to install the dimming transmission component, and the other is used to install the opening and closing transmission component. The detection channel is used to install the circuit board.

[0006] In one embodiment, the main box body includes a positioning portion, and the inner bracket abuts against the positioning portion.

[0007] In one embodiment, the main box body includes two opposite mounting posts, and the mounting posts are inserted into the inner bracket.

[0008] In one embodiment, the mounting post is provided with a sliding portion for slidably mounting the circuit board.

[0009] In one embodiment, the main box body includes a plurality of fixed shafts spaced apart in the rear transmission cavity, and the fixed shafts are used to install the gears of the opening and closing transmission component.

[0010] In one embodiment, at least one of the fixed shafts is inserted and connected to the inner bracket.

[0011] In one embodiment, the inner bracket is provided with an assembly hole, and a support portion is locally protruded from the hole wall of the assembly hole, and the support portion is used to support the circuit board.

[0012] In one embodiment, the inner bracket includes a clearance groove and a rotating portion located on one side of the clearance groove. The clearance groove communicates the front transmission cavity and the rear transmission cavity. The main box body is used to install the opening and closing transmission mechanism. The opening and closing transmission mechanism is located above the rotating portion. The rotating portion protrudes toward the front transmission cavity, and the rotating portion is used to connect the opening and closing transmission mechanism.

[0013] In one embodiment, at least a part of the cover plate is inserted and connected to the inner bracket.

[0014] In one embodiment, the cover plate includes a protruding socket portion and a connector installed on the socket portion, and the connector is located in the extending direction of the detection channel.

[0015] The technical solution provided by the embodiment of the present utility model may include the following beneficial effects: The inner bracket is located inside the main box body and divides the space. The detection channel penetrates through the inner bracket to communicate the front transmission cavity and the rear transmission cavity, so that the circuit board can straddle the inner bracket and perform parameter detection, and the space layout is reasonable. The inner bracket is provided with a detection channel, which has little influence on the external shape and volume of the transmission box body.

[0016] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present utility model, and are used together with the specification to explain the principles of the present utility model.

[0018] Figure 1 is a schematic structural diagram of a transmission box body shown according to an exemplary embodiment.

[0019] Figure 2 is an exploded structural diagram of a transmission box body shown according to an exemplary embodiment.

[0020] Figure 3 is a schematic structural diagram of a cover plate hiding a transmission box body shown according to an exemplary embodiment.

[0021] Figure 4 is a schematic structural diagram of an inner bracket shown according to an exemplary embodiment.

[0022] Figure 5 is an assembly schematic diagram of a circuit board installed on a transmission box body shown according to an exemplary embodiment.

[0023] In the figure, there are main box body 10; positioning part 11; mounting post 12; sliding part 121; fixed shaft 13; cover plate 20; socket part 21; joint part 22; inner support 30; assembly hole 31; supporting part 32; clearance groove 33; rotating part 34; detection channel 35; opening and closing transmission mechanism 40; circuit board 50; opening and closing transmission assembly 60. Detailed implementation manners

[0024] Among them, the attached drawings are only for illustrative purposes, showing only schematic diagrams rather than actual diagrams, and should not be construed as a limitation to this patent; in order to better illustrate the embodiments of the present invention, some components in the attached drawings are omitted, enlarged or reduced, which do not represent the dimensions of the actual products; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted.

[0025] In the attached drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the attached drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the attached drawings are only for illustrative purposes and should not be construed as a limitation to this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] In the description of the present invention, unless otherwise clearly defined and limited, if terms such as "connection" are used to indicate the connection relationship between components, this term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Such as Figures 1 to 5As shown in the figure, the present utility model provides a transmission box body, which includes a main box body 10, an inner bracket 30 and a cover plate 20. The cover plate 20 seals the opening of the main box body 10. The main box body 10 is a thin-walled structural member, which includes a bottom wall and a peripheral wall surrounding the bottom wall. The cover plate 20 is detachably sealed to the opening of the main box body 10 to form an internal cavity space. The inner bracket 30 is inserted into the main box body 10 from the opening. Among them, the inner bracket 30 divides the inside of the transmission box body into a front transmission cavity and a rear transmission cavity. One of the front transmission cavity and the rear transmission cavity is used to install a dimming transmission component, and the other is used to install an opening and closing transmission component. For example, the front transmission cavity is used to install a dimming transmission component, and the rear transmission cavity is used to install an opening and closing transmission component 60. Or, the front transmission cavity is used to install an opening and closing transmission component 60, and the rear transmission cavity is used to install a dimming transmission component.

[0028] Further, the inner bracket 30 is provided with a detection channel 35 communicating the front transmission cavity and the rear transmission cavity. The detection channel 35 is used to install a circuit board 50, and the circuit board 50 is used to detect the rotation parameters of the dimming transmission component and the opening and closing transmission component 60. The detection channel 35 penetrates through the inner bracket 30 to communicate the front transmission cavity and the rear transmission cavity, so that the circuit board 50 can straddle the inner bracket 30 and perform parameter detection, and the spatial layout is reasonable. The inner bracket 30 is provided with the detection channel 35, which has little influence on the external shape and volume of the transmission box body.

[0029] The circuit board 50 can respectively detect the dimming transmission component and the opening and closing transmission component 60 to sense parameters such as the rotation stroke and rotation direction of the corresponding parts, so as to determine the dimming angle and opening and closing stroke of the electric curtain.

[0030] The detection channel 35 is a channel-type structure, and the inner bracket 30 is provided with a space and a strengthening structure adapted to the installation requirements of the circuit board 50, so as to provide support and limitation for the circuit board 50.

[0031] Optionally, the circuit board 50 is slidably adjusted along the detection channel to position the installation structure. In one embodiment, the main box body 10 includes a positioning portion 11, and the inner bracket 30 abuts against the positioning portion 11. The positioning portion 11 is a positioning structure protruding from the bottom wall of the main box body 10, and is used to position the inner bracket 30 to the partition position of the main box body 10, so as to fix the installation position of the inner bracket 30. Optionally, the positioning portion 11 includes two positioning ribs oppositely arranged on both sides of the main box body 10, and the inner bracket 30 abuts against the ends of the positioning ribs and is mutually limited with the positioning ribs.

[0032] In one embodiment, the main box body 10 includes two mounting columns 12 arranged oppositely. The mounting columns 12 are inserted into the inner bracket 30. The mounting columns 12 protrude from the bottom wall, and the mounting columns 12 constitute two columnar protrusion structures arranged oppositely. The mounting columns 12 are inserted and positioned with the inner bracket 30, and are used to position the installation orientation of the inner bracket 30.

[0033] Preferably, the main box body 10 includes a plurality of fixed shafts 13 spaced apart in the rear transmission cavity. The fixed shafts 13 are used to mount the gears of the opening and closing transmission assembly 60. The opening and closing transmission assembly 60 is provided with an opening and closing gear and a sensing member mounted on the opening and closing gear. The opening and closing gear is mounted on the fixed shaft 13. During the rotation of the opening and closing gear, the circuit board 50 can detect the rotation stroke and rotation direction of the sensing member.

[0034] In one embodiment, the mounting post 12 is provided with a sliding portion 121 for slidably mounting the circuit board 50. The sliding portion 121 can be set as a sliding groove, and the opposite side edges of the circuit board 50 are respectively defined in the two sliding grooves to form a sliding guiding structure. Optionally, the sliding portion 121 can be set as a stepped groove to cooperate with the inner bracket 30 to jointly define the circuit board.

[0035] In an alternative embodiment, the inner bracket 30 is provided with assembly holes 31, and the two mounting posts 12 are inserted and connected to the assembly holes 31. The mounting posts 12 and the fixed shafts 13 are spaced apart. Inserting the mounting posts 12 into the assembly holes 31 can make the detection position of the circuit board 50 match the mounting position of the sensing member.

[0036] In another alternative embodiment, there is a fitting gap between the mounting post 12 inserted into the assembly hole 31 and the hole wall of the assembly hole 31. A supporting portion 32 is locally protruded from the hole wall of the assembly hole 31. The supporting portion 32 is used to support the circuit board 50. The supporting portion 32 can cooperate with the mounting post 12 to jointly define the circuit board 50. Among them, a cavity structure is formed between the end of the supporting portion 32 and the hole wall of the assembly hole 31 where the supporting portion 32 is located. This cavity structure can allow the electrical components on one side of the circuit board 50 to slide; at the same time, an activity space is formed between the mounting post 12 and the assembly hole 31, and this activity space can allow the electrical components on the other side of the circuit board 50 to slide. Preferably, the mounting post 12 is provided with a stepped notch structure to position one side edge and the surface of the circuit board. Preferably, a Hall element is mounted on one side of the circuit board 50 to perform Hall detection.

[0037] As Figures 1 to 5 As shown, the inner bracket 30 and the main box body 10 cooperate with each other, and the inner bracket 30 abuts against the positioning portion 11 for end positioning. In a preferred embodiment, at least one fixed shaft 13 is inserted and connected to the inner bracket 30. Inserting and connecting the fixed shaft 13 to the inner bracket 30 can position the inner bracket 30. Moreover, inserting and connecting the fixed shaft 13 to the inner bracket 30 enables the inner bracket 30 and the main box body 10 to jointly define the gears of the opening and closing transmission assembly 60, and the installation effect is good.

[0038] In one embodiment, the inner bracket 30 includes a clearance groove 33 and a rotating portion 34 located on one side of the clearance groove 33. The clearance groove 33 communicates with the front transmission cavity and the rear transmission cavity. The main box body 10 is used to install the opening and closing transmission mechanism 40. The opening and closing transmission mechanism 40 is located above the rotating portion 34. The rotating portion 34 protrudes toward the front transmission cavity. The rotating portion 34 is used to connect the opening and closing transmission mechanism 40. The clearance groove 33 and the detection channel 35 are spaced apart on the inner bracket 30. Among them, the detection channel 35 is located at the power output end of the transmission box body, and the clearance groove 33 is located at the power output end of the transmission box body. The opening and closing transmission mechanism 40 is provided with bevel gears to change the power output direction. The clearance groove 33 extends from the front transmission cavity to the rear transmission cavity to output the transmission of the rear transmission cavity in the direction of the front transmission cavity, thereby driving the output of the transmission belt to realize the control of the curtain opening and closing. And the clearance groove 33 increases the installation space of the opening and closing transmission mechanism 40 and improves the space utilization rate.

[0039] The cover plate 20 closes the opening of the main box body 10 and is connected to the main box body 10. The wiring part of the circuit board 50 is arranged on the cover plate 20. In one embodiment, at least part of the cover plate 20 is connected to the inner bracket 30 by insertion. The space between the cover plate 20 and the inner bracket 30 forms the front transmission cavity. The cover plate 20 is provided with a columnar protrusion, and the columnar protrusion is inserted into the inner bracket 30 to form an assembly positioning. Preferably, the columnar protrusion coincides with the gear shaft of the dimming transmission component to improve the flexibility of gear assembly.

[0040] Further, the cover plate 20 includes a protruding socket part 21 and a connector 22 installed on the socket part 21. The connector 22 is located in the extending direction of the detection channel 35. The socket part 21 is used for plugging and connecting to the driving device for plugging and mating positioning. The connector 22 is a conductive part, and the connector 22 and the socket part 21 form a plug structure for quick plugging and mating structure.

[0041] Preferably, the socket part 21 is set as an annular plug structure to form an insertion and mating structure. The circuit board 50 is electrically connected to the connector 22, so that electrical conduction and signal transmission can be realized, and the transmission effect is good.

[0042] Those skilled in the art will readily think of other embodiments of the present invention after considering the specification and the practice disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention, which follow the general principles of the present invention and include the common general knowledge or conventional technical means in the technical field not disclosed in the present invention. The specification and the embodiments are only regarded as exemplary, and the true scope and spirit of the present invention are pointed out by the following claims.

[0043] It should be understood that the present utility model is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present utility model is only limited by the appended claims.

Claims

1. A transmission case, comprising a main case (10), an inner bracket (30) and a cover plate (20), wherein the cover plate (20) covers an opening of the main case (10), characterized in that: The inner bracket (30) divides the transmission box body into a front transmission chamber and a rear transmission chamber. The inner bracket (30) is provided with a detection channel (35) communicating with the front transmission chamber and the rear transmission chamber. One of the front transmission chamber and the rear transmission chamber is used to install a dimming transmission component, and the other is used to install an opening and closing transmission component (60). The detection channel (35) is used to install a circuit board (50).

2. The transmission housing according to claim 1, characterized in that: The main box body (10) comprises a positioning portion (11), and the inner bracket (30) abuts against the positioning portion (11).

3. The transmission housing according to claim 1, characterized in that: The main box body (10) comprises two mounting columns (12) arranged opposite to each other, and the mounting columns (12) are plugged into the inner bracket (30).

4. The transmission housing according to claim 3, characterized in that: The mounting column (12) is provided with a sliding portion (121), and the sliding portion (121) is used for slidingly mounting the circuit board (50).

5. The transmission housing according to claim 1, characterized in that: The main housing (10) comprises a plurality of fixed shafts (13) distributed at intervals in the rear transmission cavity, and the fixed shafts (13) are used to mount gears of an opening and closing transmission assembly (60).

6. The transmission housing according to claim 5, characterized in that: At least one of the fixed shafts (13) is plug-connected to the inner bracket (30).

7. The transmission housing according to claim 1, characterized in that: The inner bracket (30) is provided with an assembly hole (31), a hole wall of the assembly hole (31) partially protrudes to form a support portion (32), and the support portion (32) is used to support the circuit board (50).

8. The transmission housing according to claim 1, characterized in that: The inner bracket (30) comprises a clearance groove (33) and a rotating part (34) located on one side of the clearance groove (33); the clearance groove (33) is in communication with the front transmission cavity and the rear transmission cavity; the main housing (10) is used for mounting an opening and closing transmission mechanism (40); the opening and closing transmission mechanism (40) is located above the rotating part (34); the rotating part (34) protrudes toward the front transmission cavity; and the rotating part (34) is used for connecting the opening and closing transmission mechanism (40).

9. The transmission housing according to claim 1, characterized in that: At least a portion of the cover plate (20) is plug-connected to the inner bracket (30).

10. The transmission housing according to claim 1, characterized in that: The cover plate (20) comprises a protruding socket portion (21) and a connector (22) mounted on the socket portion (21), wherein the connector (22) is located in an extension direction of the detection channel (35).

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