A mortise and tenon type housing structure for a wireless trolley
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU KAIDER TECH DEV CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-12
AI Technical Summary
The existing wireless vehicle has a complex outer shell structure, poor sealing, poor internal positioning effect, and is inconvenient to disassemble and assemble.
The design employs a mortise and tenon structure, with the lower housing and cover plate connected by mortise and tenon joints. Combined with a sealing ring and anti-slip structure, it reduces the use of screws and achieves stable positioning and sealing of the battery and circuit board.
It improves the sealing performance of the casing, reduces the risk of leakage, simplifies the disassembly and assembly process, and ensures the stability of the battery and circuit board.
Smart Images

Figure CN224356412U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wireless vehicle technology, specifically to a mortise and tenon shell structure for wireless vehicles. Background Technology
[0002] A wireless car is an intelligent device that enables remote control or autonomous operation through wireless communication technologies (such as Bluetooth, Wi-Fi, and radio frequency). A wireless car typically consists of electrical components and a housing structure. The electrical components include a battery and a circuit board, both housed within the car. The housing structure must protect the internal components while also facilitating assembly and disassembly. However, existing housing structures have the following shortcomings: 1) Assembly relies on screws, and too many screws not only make assembly and disassembly difficult but also increase the number of openings between the panels, leading to more gaps and potential leaks; 2) The lack of orderly internal arrangement results in poor positioning, making the internal structure prone to shaking during movement. This can cause collisions between the battery and the circuit board. Adding screws to secure the battery further complicates the assembly and disassembly process. Utility Model Content
[0003] This utility model provides a mortise and tenon shell structure for wireless vehicles to solve the technical problems of poor sealing performance and lack of internal positioning means in the existing shell structure.
[0004] To solve the above problems, the mortise and tenon shell structure for the wireless car provided by this utility model adopts the following technical solution:
[0005] A mortise and tenon shell structure for a wireless vehicle includes:
[0006] The lower housing has a battery compartment for placing batteries inside. A circuit board chamber for placing circuit boards is formed between the battery compartment and the inner wall of the lower housing. The battery compartment has an internal wiring hole, and the lower housing has an external wiring hole. The outer side of the battery compartment has an anti-slip structure, and the battery compartment contacts the inner wall of the lower housing through the anti-slip structure.
[0007] The cover plate has a tenon groove on its lower end face and a mortise plate on its upper end face. The mortise plate is used to fit into the tenon groove, and a sealing ring is embedded in the tenon groove to achieve a seal when the cover plate is connected to the lower shell.
[0008] Furthermore, the battery compartment is a rectangular frame, the width of which is adapted to the width of the lower housing, and the length is less than the length of the lower housing. One long side and one wide side of the rectangular frame are in contact with the inner wall of the lower housing, and the other wide side forms the circuit board chamber between the rectangular frame and the lower housing.
[0009] Furthermore, the inner chamber of the circuit board has mounting holes for mounting the circuit board.
[0010] Furthermore, the rectangular frame has an internal wiring hole on its wide side corresponding to the inner chamber of the circuit board.
[0011] Furthermore, the inner sides of the long and wide sides of the rectangular frame that contact the lower housing are provided with anti-slip stripes, which constitute the anti-slip structure to enable boltless installation of the battery in the battery compartment.
[0012] Furthermore, the tenon is a ring structure that extends along the contour of the lower end face of the cover plate. The mortise is also a ring structure that matches the structure of the tenon. Threaded holes are arranged at the four corners of the cover plate, with the threaded holes located outside the tenon. A corresponding number of vertical mounting seats are provided on the lower housing, each with a threaded hole. The threaded holes on the cover plate and the lower housing are used to install screws to fasten the cover plate to the lower housing.
[0013] Furthermore, six external wiring holes are arranged on one long side of the lower housing, four of which are connected to the battery compartment and the remaining two are connected to the inner chamber of the circuit board. Two external wiring holes connected to the inner chamber of the circuit board are arranged on one wide side of the lower housing. Each of the external wiring holes is used to connect an aviation plug.
[0014] Furthermore, the lower housing adopts a thin-wall design, and the lower housing is made of 2.5mm thick ABS material with a nano waterproof coating on the surface.
[0015] The beneficial effects of the mortise and tenon shell structure for the wireless car provided by this utility model are:
[0016] 1) The lower shell and the cover plate are mainly connected by mortise and tenon joints and mortise plates, which greatly reduces the number of screws. This not only achieves the connection between the two, but also reduces the probability of leakage in the vertical direction. At the same time, the sealing ring is arranged in the mortise and tenon joint to further improve the sealing performance.
[0017] 2) The screw connection between the lower housing and the cover plate is located on the outside of the tenon groove. Even if a leak occurs at this location, it will not affect the sealing effect between the tenon groove and the mortise plate.
[0018] 3) The battery is positioned in the battery compartment by an anti-slip structure, which ensures stability and eliminates the need for screws, greatly improving the ease of disassembly and assembly.
[0019] Through the above-mentioned design, this utility model effectively solves the technical problems of poor sealing performance of the outer shell structure and lack of internal positioning means in the prior art. Attached Figure Description
[0020] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:
[0021] Figure 1 A three-dimensional schematic diagram of the mortise and tenon shell structure for the wireless car provided by this utility model (the lower shell and the cover plate are separated).
[0022] Figure 2 This is a front view of the mortise and tenon shell structure for the wireless car provided by this utility model (the lower shell and the cover plate are separated).
[0023] Figure 3 This is a perspective view of the lower shell of the mortise and tenon type outer shell structure for the wireless car provided by this utility model.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Lower housing; 2. Battery compartment; 3. Circuit board interior; 4. Internal wiring hole; 5. External wiring hole; 6. Cover plate; 7. Mortise and tenon joint; 8. Mortise plate; 9. Vertical mounting base; 10. Fixing hole; 11. Threaded hole. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0027] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.
[0028] An embodiment of the mortise and tenon shell structure for wireless vehicles provided by this utility model:
[0029] like Figures 1 to 3 As shown, a mortise and tenon shell structure for a wireless car includes two parts: a lower shell 1 and a cover plate 6. The lower shell 1 has a battery compartment 2 for placing batteries inside. A circuit board chamber 3 for placing circuit boards is formed between the battery compartment 2 and the inner wall of the lower shell 1. The battery compartment 2 has an internal wire outlet hole 4, and the lower shell 1 has an external wire outlet hole 5. The outer side of the battery compartment 2 has an anti-slip structure, and the battery compartment 2 contacts the inner wall of the lower shell 1 through the anti-slip structure.
[0030] The lower end face of the cover plate 6 has a tenon groove 7, and the upper end face of the lower housing 1 has a mortise plate 8. The mortise plate 8 is used to fit into the tenon groove 7, and a sealing ring is embedded in the tenon groove 7 to achieve a seal when the cover plate 6 is connected to the lower housing 1. The sealing ring is a silicone sealing ring.
[0031] Specifically, the battery compartment 2 is a rectangular frame. The width of the rectangular frame is adapted to the width of the lower housing 1, and the length is less than the length of the lower housing 1. One long side and one wide side of the rectangular frame are in contact with the inner wall of the lower housing 1, and the other wide side forms the circuit board inner chamber 3 between the lower housing 1 and the lower housing 1.
[0032] The circuit board chamber 3 has mounting holes 10 for mounting the circuit board. The circuit board is fixed in the circuit board chamber 3 through the mounting holes 10.
[0033] On the other hand, the rectangular frame has an internal wiring hole 4 on its wide side corresponding to the inner chamber 3 of the circuit board, so as to realize the wiring connection between the circuit board and the battery.
[0034] like Figures 1 to 3 As shown, the inner sides of both the long and wide sides of the rectangular frame that contact the lower housing 1 have anti-slip stripes. These stripes constitute the anti-slip structure, enabling boltless installation of the battery within the battery compartment 2. In this way, the battery is snapped into place within the battery compartment 2 without the need for bolts, significantly reducing assembly difficulty.
[0035] In this embodiment, the tenon 7 is an annular structure extending along the contour of the lower end face of the cover plate 6. The mortise plate 8 is also an annular structure, adapted to the structure of the tenon 7. Threaded holes 11 are arranged at each of the four corners of the cover plate 6, located outside the tenon 7. A corresponding number of vertical mounting seats 9 are provided on the lower housing 1, each with a threaded hole 11. The threaded holes 11 on the cover plate 6 and the lower housing 1 are used to install screws to fasten the cover plate 6 to the lower housing 1. In other embodiments, the number of threaded holes 11 may not be four, but two, i.e., one threaded hole 11 is provided on each side of the cover plate 6 along its length.
[0036] Regarding the external cable exit holes 5: Six external cable exit holes 5 are arranged on one long side of the lower housing 1, four of which connect to the battery compartment 2, and the remaining two connect to the circuit board inner chamber 3. Two external cable exit holes 5 connecting to the circuit board inner chamber 3 are arranged on one wide side of the lower housing 1. Each of the external cable exit holes 5 is used for connecting an aviation connector. In other embodiments, the number of external cable exit holes 5 can be adjusted according to actual needs; for example, ten external cable exit holes 5 can be arranged on the long side of the lower housing 1.
[0037] In this embodiment, the lower housing 1 adopts a thin-walled design, using 2.5mm thick ABS material with a nano-waterproof coating on the surface. This ensures both strength and good waterproof performance. In other embodiments, the wall thickness of the ABS material can be adjusted according to actual needs, for example, it can be 3mm.
[0038] The working principle of the mortise and tenon shell structure for the wireless car provided by this utility model is as follows: The lower shell 1 and the cover plate 6 are mainly connected by the mortise groove 7 and the mortise plate 8, which greatly reduces the number of screws. This not only achieves the connection between the two but also reduces the probability of leakage in the vertical direction. At the same time, a sealing ring is arranged in the mortise groove 7 to further improve the sealing performance. The screw connection between the lower shell 1 and the cover plate 6 is located on the outside of the mortise groove 7. Even if leakage occurs at this point, it will not affect the sealing effect between the mortise groove 7 and the mortise plate 8. The battery is positioned in the battery compartment 2 by an anti-slip structure, which ensures stability and eliminates the need for screw positioning, greatly improving the ease of disassembly and assembly.
Claims
1. A mortise and tenon shell structure for a wireless car, characterized in that, include: The lower housing has a battery compartment for placing batteries inside. A circuit board chamber for placing circuit boards is formed between the battery compartment and the inner wall of the lower housing. The battery compartment has an internal wiring hole, and the lower housing has an external wiring hole. The outer side of the battery compartment has an anti-slip structure, and the battery compartment contacts the inner wall of the lower housing through the anti-slip structure. The cover plate has a tenon groove on its lower end face and a mortise plate on its upper end face. The mortise plate is used to fit into the tenon groove, and a sealing ring is embedded in the tenon groove to achieve a seal when the cover plate is connected to the lower shell.
2. The mortise and tenon shell structure for a wireless car according to claim 1, characterized in that: The battery compartment is a rectangular frame. The width of the rectangular frame is adapted to the width of the lower housing, and the length is less than the length of the lower housing. One long side and one wide side of the rectangular frame are in contact with the inner wall of the lower housing, and the other wide side forms the circuit board chamber between the rectangular frame and the lower housing.
3. The mortise and tenon shell structure for a wireless car according to claim 2, characterized in that: The circuit board chamber has mounting holes for mounting the circuit board.
4. The mortise and tenon shell structure for a wireless vehicle according to claim 2 or 3, characterized in that: The rectangular frame has an internal wiring hole on its wide side corresponding to the inner chamber of the circuit board.
5. The mortise and tenon shell structure for a wireless vehicle according to claim 2 or 3, characterized in that: The inner sides of the long and wide sides of the rectangular frame that contact the lower housing are both equipped with anti-slip stripes, which constitute the anti-slip structure to enable boltless installation of the battery in the battery compartment.
6. The mortise and tenon shell structure for a wireless vehicle according to any one of claims 1 to 3, characterized in that: The tenon is a ring structure that extends along the contour of the lower end face of the cover plate. The mortise is also a ring structure that matches the structure of the tenon. Threaded holes are arranged at the four corners of the cover plate, located on the outside of the tenon. A corresponding number of vertical mounting seats are provided on the lower housing, each with a threaded hole. The threaded holes on the cover plate and the lower housing are used to install screws to fasten the cover plate to the lower housing.
7. The mortise and tenon shell structure for a wireless vehicle according to any one of claims 1 to 3, characterized in that: Six external wiring holes are arranged on one long side of the lower housing, four of which are connected to the battery compartment and the other two are connected to the inner chamber of the circuit board. Two external wiring holes connected to the inner chamber of the circuit board are arranged on one wide side of the lower housing. Each of the external wiring holes is used to connect an aviation plug.
8. The mortise and tenon shell structure for a wireless vehicle according to any one of claims 1 to 3, characterized in that: The lower housing adopts a thin-wall design and is made of 2.5mm thick ABS material with a nano waterproof coating on the surface.