Automobile relay convenient to install
By introducing components such as a fixed base plate, fixing device, and retaining ring into the automotive relay, and adopting a snap-fit and self-locking mechanism, the problem of needing to rotate the bolts multiple times for fixing in the existing technology is solved, achieving a fast and stable fixing effect and reducing the risk of falling off.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-03
AI Technical Summary
The existing method of fixing automotive relays requires multiple turns of the bolts to complete the process, and there are no fixing points on the front and rear sides, posing a risk of them falling off.
It adopts components such as a fixed base plate, fixing device, fixing ring and protective shell, and achieves quick fixation through snap-fit and self-locking mechanism. The fixing device is distributed around the protective shell and uses the cooperation of spring and clip head to achieve self-locking.
It achieves a fast and stable fixing method, reduces the risk of the protective shell falling off, and improves the adaptability and installation efficiency of the device.
Smart Images

Figure CN223967168U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive relay technology, specifically to an automotive relay that is easy to install. Background Technology
[0002] A relay is an electrical control device that causes a predetermined step change in the controlled variable in the electrical output circuit when the change in the input quantity (excitation quantity) reaches a specified requirement. It has an interactive relationship between the control system (also known as the input circuit) and the controlled system (also known as the output circuit). It is commonly used in automated control circuits, and is essentially an "automatic switch" that uses a small current to control a large current. Therefore, it plays a role in automatic adjustment, safety protection, and circuit switching in circuits.
[0003] An existing announcement (CN 219393282 U) discloses a novel automotive relay with a protective shell and a relay body on the top of a PCB board. The relay body is located inside the protective shell. The top of the PCB board has a first L-shaped plate and a second L-shaped plate. The first L-shaped plate is located on one side of the protective shell, and the second L-shaped plate is located on the other side. A first fixing plate is located on the side of the first L-shaped plate closest to the protective shell, and a first bolt is located on the other side of the first L-shaped plate. This invention, through the setting of the pressure plate, the first fixing plate, and the second fixing plate, facilitates the fixing of the protective shell and, consequently, the relay body. Unlike traditional technologies, this invention has a simple installation structure and fewer fixing and disassembly steps, thus facilitating quick replacement. The use of a heat-conducting copper sheet facilitates the dissipation of heat generated by the relay body, preventing damage to the relay body. However, this patent still has some shortcomings. By tightening the first and second bolts respectively, the first and second fixing plates are moved to fix the protective shell. Then, the pressure plate is rotated to move the pressure plate into the placement groove. Then, the fixing block is reset to fix the pressure plate, and the pressure plate fixes the protective shell. This fixing method requires continuous rotation to fix the relay, which takes a lot of time. At the same time, this method can only fix the two sides of the relay. There are no fixing points on the front and rear sides, which poses a greater risk of falling off. Therefore, we propose an automotive relay that is easy to install. Utility Model Content
[0004] The purpose of this invention is to provide an easy-to-install automotive relay to solve the problem in the background art whereby the protective shell is fixed by rotating the first and second bolts to move the first and second fixing plates, then rotating the pressure plate to move it into the placement slot, and then resetting the fixing block to fix the pressure plate, which in turn fixes the protective shell. This fixing method requires constant rotation to fix the relay, takes a lot of time, and can only fix the two sides of the relay, leaving no fixing points on the front and rear sides, posing a significant risk of detachment.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An easy-to-install automotive relay includes a mounting base plate, a fixing device on the top of the mounting base plate, multiple limiting holes on the bottom surface of the mounting base plate, a fixing device fixedly connected in the multiple limiting holes, a protective shell on the top surface of the mounting base plate, a fixing ring fixedly connected to the outer wall of the protective shell, a relay inside the protective shell, and a pin fixedly connected to the bottom of the relay.
[0007] As a preferred embodiment of this utility model, the fixing device is L-shaped, with a slot on the side and a groove on the top of the slot, and a buffer pad is fixedly connected in the groove.
[0008] As a preferred embodiment of this utility model, the bottom of the fixing device is provided with a circular hole, a cylindrical barrel is fixedly connected inside the circular hole, a fixing block is fixedly connected to the top of the circular hole, and a pressing block is provided on the top of the cylindrical barrel.
[0009] As a preferred embodiment of this utility model, a connecting column is fixedly connected to the bottom of the push block, and a spring is provided on the outer wall of the connecting column. The top end of the spring abuts against the push block, and the bottom end of the spring abuts against the bottom opening of the cylinder.
[0010] As a preferred embodiment of this utility model, a clamp is fixedly connected to the bottom of the cylinder, and a fixing opening is provided on both sides of the clamp, with a ball placed inside the fixing opening.
[0011] As a preferred embodiment of this utility model, the shape of the clamp head is annular, the diameter of the clamp head is 0.9 times that of the cylinder, and the bottom opening of the clamp head is at the same level as the bottom opening of the connecting column.
[0012] As a preferred embodiment of this utility model, the shape of the fixing device is a ring, the top circular diameter of the fixing device is the same as that of the clip head, and the bottom circular diameter of the fixing device is 1.2 times the top circular diameter.
[0013] As a preferred embodiment of this utility model, the fixing device is provided in multiple ways, and the slots of the multiple fixing devices are engaged and abutted against the fixing rings.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. In this utility model, by setting components such as a fixing device, a fixing ring, a protective shell, and a fixing base plate, the fixing ring abuts against the locking groove, the bottom of the fixing device presses the block to move the connecting column downward, and at the same time the ball falls back and retracts, so that the locking head can be inserted into the fixing device. When the block is released, the connecting column springs back, and at the same time the ball is squeezed out and abuts against the upper opening of the fixing device, thus completing the self-locking fixation. At the same time, multiple fixing devices are distributed around the protective shell, so that the protective shell is fixed on all sides, reducing the risk of the protective shell falling off.
[0016] 2. In this utility model, by providing a fixed base plate, limiting holes and a fixing device, the fixing base plate is provided with evenly spaced limiting holes, thereby fixing the device. It can be fixed according to the size of the protective shell and the relay, which greatly improves the adaptability of the whole device. Attached Figure Description
[0017] Figure 1 This is a bottom view of the structure of this utility model;
[0018] Figure 2 This is a top view of the structure of this utility model;
[0019] Figure 3 This is an enlarged schematic diagram of the structural fixing device of this utility model;
[0020] Figure 4 This is an exploded view of the structural fixing device of this utility model.
[0021] In the diagram: 1. Fixed base plate; 2. Fixing device; 3. Fixing ring; 4. Protective shell; 5. Relay; 6. Pin; 7. Limiting hole; 201. Slot; 202. Groove; 203. Buffer pad; 204. Round hole; 205. Fixing block; 206. Press block; 207. Round barrel; 208. Clip head; 209. Fixing device; 210. Connecting post; 211. Fixing port; 212. Ball; 213. Spring. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. 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 protection scope of the present utility model.
[0023] For examples, please refer to Figures 1-4 This utility model provides a technical solution:
[0024] An easy-to-install automotive relay includes a mounting base 1, a fixing device 2 on the top of the mounting base 1, multiple limiting holes 7 on the bottom surface of the mounting base 1, a fixing device 209 fixedly connected in the multiple limiting holes 7, a protective shell 4 on the top surface of the mounting base 1, a fixing ring 3 fixedly connected to the outer wall of the protective shell 4, a relay 5 inside the protective shell 4, and a pin 6 fixedly connected to the bottom of the relay 5.
[0025] In this embodiment, as Figure 1 and Figure 3 As shown, the fixing device 2 is L-shaped. A slot 201 is provided on the side of the fixing device 2, and a groove 202 is provided on the top of the slot 201. A buffer pad 203 is fixedly connected in the groove 202. A round hole 204 is provided on the bottom of the fixing device 2, and a cylindrical barrel 207 is fixedly connected in the round hole 204. A fixing block 205 is fixedly connected on the top of the round hole 204. A pressing block 206 is provided on the top of the cylindrical barrel 207. A connecting post 210 is fixedly connected to the bottom of the pressing block 206. A spring 213 is provided on the outer wall of the connecting post 210. The top of the spring 213 abuts against the pressing block 206, and the bottom of the spring 213 abuts against the bottom opening of the cylindrical barrel 207.
[0026] The device includes components such as a fixing device 2, a fixing ring 3, a protective shell 4, and a fixing base plate 1. The fixing ring 3 engages with the slot 201. The bottom of the fixing device 2 presses down on the block 206, causing the connecting column 210 to move downwards. At the same time, the ball 212 retracts, allowing the locking head 208 to be inserted into the fixing device 209. When the block 206 is released, the connecting column 210 springs back, and the ball 212 is squeezed out to abut against the upper opening of the fixing device 209, thus completing the self-locking fixation. Meanwhile, multiple fixing devices 2 are distributed around the protective shell 4, ensuring that the protective shell 4 is fixed on all sides, reducing the risk of the protective shell 4 falling off.
[0027] In this embodiment, as Figure 2 and Figure 4 As shown, a clamp head 208 is fixedly connected to the bottom of the cylindrical barrel 207. The clamp head 208 has fixing openings 211 on both sides, and a ball 212 is set in the fixing opening 211. The clamp head 208 is annular in shape, and its diameter is 0.9 times that of the cylindrical barrel 207. The bottom opening of the clamp head 208 is at the same level as the bottom opening of the connecting column 210. The fixing device 209 is annular in shape. The top circular diameter of the fixing device 209 is the same as that of the clamp head 208, and the bottom circular diameter of the fixing device 209 is 1.2 times that of the top circular diameter. Multiple fixing devices 2 are provided, and the slots 201 of the multiple fixing devices 2 engage and abut with the fixing rings 3.
[0028] Among them, the fixed base plate 1 has evenly spaced limit holes 7, which are used to fix the device 2. The device can be fixed according to the size of the protective shell 4 and the relay 5, which greatly improves the adaptability of the whole device.
[0029] The working process of this utility model is as follows: When using the easy-to-install automotive relay device structure designed in this scheme, first take out the relay 5 and the matching protective shell 4, and place them on the surface of the fixed base plate 1. Then, take out multiple fixing devices 2. The fixing ring 3 of the fixing device 2 abuts against the snap-fit of the slot 201. Press the bottom of the fixing device 2 with the button 206 to move the connecting post 210 downward. At the same time, the ball 212 falls back and retracts, so that the clip 208 can be inserted into the fixing device 209. Release the button 206, the connecting post 210 springs back, and at the same time squeeze the ball 212 to pop out and abut against the upper opening of the fixing device 209, thus completing the self-locking fixation. At the same time, multiple fixing devices 2 are distributed around the protective shell 4, so that the protective shell 4 is fixed on all sides, reducing the risk of the protective shell 4 falling off.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An easy-to-install automotive relay, including a mounting base (1), characterized in that: The top of the fixed base plate (1) is provided with a fixing device (2), and the bottom surface of the fixed base plate (1) is provided with multiple limiting holes (7). Fixers (209) are fixedly connected in the multiple limiting holes (7). The top surface of the fixed base plate (1) is provided with a protective shell (4). A fixing ring (3) is fixedly connected to the outer wall of the protective shell (4). A relay (5) is provided inside the protective shell (4). A pin (6) is fixedly connected to the bottom of the relay (5).
2. The easy-to-install automotive relay according to claim 1, characterized in that: The fixing device (2) is L-shaped. A slot (201) is provided on the side of the fixing device (2). A groove (202) is provided on the top of the slot (201). A buffer pad (203) is fixedly connected in the groove (202).
3. The easy-to-install automotive relay according to claim 1, characterized in that: The bottom of the fixing device (2) is provided with a circular hole (204), a cylindrical barrel (207) is fixedly connected inside the circular hole (204), a fixing block (205) is fixedly connected to the top of the circular hole (204), and a pressing block (206) is provided on the top of the cylindrical barrel (207).
4. The easy-to-install automotive relay according to claim 3, characterized in that: The bottom of the push block (206) is fixedly connected to a connecting post (210), and a spring (213) is provided on the outer wall of the connecting post (210). The top end of the spring (213) abuts against the push block (206), and the bottom end of the spring (213) abuts against the bottom opening of the barrel (207).
5. The easy-to-install automotive relay according to claim 3, characterized in that: The bottom of the cylindrical barrel (207) is fixedly connected to a clamp (208), and the clamp (208) has fixing openings (211) on both sides, and a ball (212) is placed in the fixing opening (211).
6. The easy-to-install automotive relay according to claim 5, characterized in that: The shape of the clamp head (208) is ring-shaped, and the diameter of the clamp head (208) is 0.9 times that of the cylinder (207). The bottom opening of the clamp head (208) is at the same level as the bottom opening of the connecting post (210).
7. The easy-to-install automotive relay according to claim 1, characterized in that: The retainer (209) is in the shape of a ring. The top circular diameter of the retainer (209) is the same as that of the clip head (208), and the bottom circular diameter of the retainer (209) is 1.2 times that of the top circular diameter.
8. The easy-to-install automotive relay according to claim 1, characterized in that: The fixing device (2) is provided in multiple ways, and the slots (201) of the multiple fixing devices (2) are engaged and abutted against the fixing rings (3).
Citation Information
Patent Citations
Novel automobile relay
CN219393282U