Door lock device, vehicle door and vehicle
By introducing a temperature-induced memory spring mechanism into the door lock device of the new energy vehicle, the problem of the door cannot be opened after the power is cut off by the new energy vehicle, and automatic unlocking in high-temperature environments is achieved, and safety is improved.
Patent Information
- Application Number
- CN202422212372.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-09
AI Technical Summary
When a new energy vehicle is powered off in special circumstances, the door cannot be opened from the outside or inside, resulting in safety hazards.
A door lock device is designed, including a fixing seat, a lock base, a lock box, a lock tongue assembly and a first memory spring. The first memory spring induced by temperature retracts when it reaches the first temperature threshold, and drives the lock tongue assembly away from the fixing hole and unlocks the locking.
When the locking tongue assembly is powered off, it can be automatically unlocked in a high-temperature environment to improve the safe driving factor of the vehicle.
Smart Images
Figure CN223151838U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicles, in particular to a door lock device, a vehicle door and a vehicle. Background Art
[0002] The gradual popularization of new energy vehicles has greatly improved people's travel experience. Currently, vehicles generally adopt inlaid door handles, which can increase the aesthetic degree of the product and reduce the wind resistance coefficient. Among them, the inlaid door handle usually realizes electric locking in the powered-on state. However, due to the large number of built-in power batteries in new energy vehicles, in some special cases, such as when the chassis is impacted by external forces, there is a risk of spontaneous combustion. Once the whole vehicle loses power, the vehicle door cannot be opened from the outside after locking, and even cannot be opened from the inside, which brings great potential safety hazards to users. Summary of the Utility Model
[0003] In view of the problem that the vehicle door cannot be opened from the outside due to power failure, which causes great potential safety hazards, the present utility model is proposed to provide a door lock device, a vehicle door and a vehicle that can overcome or at least partially solve the above problems.
[0004] Based on the first aspect of the present utility model, a door lock device is provided, and the door lock device includes:
[0005] A fixed seat, on which a fixing hole is provided;
[0006] A lock base, on which a slide rail is provided;
[0007] A lock box, on which a chute is provided, and the chute is matched with the slide rail so that the lock box is slidably connected to the lock base;
[0008] A lock tongue assembly, which is fixed on the lock box. When the lock tongue assembly acts, it approaches the fixed seat and cooperates with the fixing hole to form a lock;
[0009] A first memory spring, which is located between the end of the lock box away from the fixed seat and the lock base. When the temperature reaches the first temperature threshold, the first memory spring retracts to drive the lock tongue assembly away from the fixing hole to release the lock.
[0010] An optional content of the utility model is that a first clamping part is provided on the lock base, a second clamping part is provided on the end of the lock box close to the first clamping part, one end of the first memory spring is hooked in the first clamping part, and the other end is hooked in the second clamping part.
[0011] An optional utility model content, the lock base is provided with a second limiting hole, and the end surface of the lock box close to the slide rail is provided with a first limiting hole;
[0012] The door lock device also includes:
[0013] A pressure spring, wherein the pressure spring is embedded in the first limiting hole;
[0014] A first limiting pin, wherein the first limiting pin is embedded in the first limiting hole and fixedly connected to the pressure spring, and the end of the first limiting pin away from the pressure spring extends to the outside of the lock box;
[0015] a second memory spring, wherein the second memory spring is embedded in the second limiting hole;
[0016] a second limiting pin, the second limiting pin being embedded in the second limiting hole and fixedly connected to the second memory spring, wherein when the first limiting pin slides to the second limiting hole, the first limiting pin abuts against the second limiting pin and compresses the second memory spring, and the first limiting pin extends into the second limiting hole to form a position locking between the lock box and the lock base;
[0017] When the temperature reaches the first temperature threshold, the second memory spring extends, pushing the first limiting pin to slide out of the second limiting hole to release the position lock.
[0018] An optional utility model content, the door lock device also includes a first locking screw, the first locking screw passes through the lock box and extends into the first limiting hole to limit the rotation of the first limiting pin.
[0019] An optional utility model content, the door lock device also includes a second locking screw, the second locking screw passes through the locking base and extends into the second limiting hole to limit the rotation of the second limiting pin.
[0020] An optional utility model content, the first limit pin is provided with a third clamping portion on the end surface close to the pressure spring, wherein one end of the pressure spring is hooked in the third clamping portion.
[0021] An optional utility model content, the second limit pin is provided with a fourth clamping portion on the end surface close to the second memory spring, wherein one end of the second memory spring is hooked in the fourth clamping portion.
[0022] An optional utility model content, the slide rail is arranged to protrude outward from the lock base in a direction close to the lock box.
[0023] An optional utility model content, wherein the slide rail and the lock base are of an integral structure.
[0024] An optional utility model content, wherein the door lock device further includes a lock cover, and the lock cover and the lock box cooperate to form a cavity, and the lock tongue assembly is installed in the cavity and extends outside the lock box.
[0025] Based on the second aspect of the present utility model, a vehicle door is further provided, and the vehicle door includes the door lock device described in any one of the above utility model contents.
[0026] Based on the third aspect of the present utility model, a vehicle is further provided, and the vehicle includes the vehicle door described in the above utility model content.
[0027] Compared with the prior art, the present utility model includes a fixed seat, a lock base, a lock box, a lock tongue assembly and a first memory spring. A fixing hole is provided on the fixed seat, and a slide rail is provided on the lock base. A chute is provided on the lock box, and the chute cooperates with the slide rail to enable the lock box to be slidably connected to the lock base. The lock tongue assembly is fixed to the lock box. When the lock tongue assembly moves, it approaches the fixed seat and cooperates with the fixing hole to form a lock. The first memory spring is located between the end of the lock box far from the fixed seat and the lock base. And when the temperature reaches the first temperature threshold, the first memory spring retracts to drive the lock tongue assembly away from the fixing hole to release the lock. Therefore, when the device is installed on the vehicle door, it can be automatically unlocked when the temperature is relatively high and the lock tongue assembly is powered off, improving the safety driving coefficient of the vehicle.
[0028] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present utility model more obvious and understandable, the following specifically describes the embodiments of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present utility model. And throughout the drawings, the same reference numerals are used to represent the same components.
[0030] In the drawings:
[0031] Figure 1 is a schematic structural diagram of a door lock device provided by an embodiment of the present utility model;
[0032] Figure 2 It is a schematic diagram of the first exploded structure of a door lock device provided by an embodiment of the present utility model;
[0033] Figure 3 It is a schematic diagram of the structure when a first memory spring is heated and compressed provided by an embodiment of the present utility model;
[0034] Figure 4 It is a schematic diagram of the second exploded structure of a door lock device provided by an embodiment of the present utility model;
[0035] Figure 5 is Figure 1 a schematic diagram of the cross-sectional structure at A-A in
[0036] Figure 6 It is a schematic diagram of the structure when a second memory spring is heated and elongated provided by an embodiment of the present utility model;
[0037] Figure 7 It is a schematic diagram of the structure of a first limit pin and a second limit pin provided by an embodiment of the present utility model;
[0038] Reference numerals: 1, fixed seat; 2, lock base; 201, first clamping portion; 202, second limit hole; 3, slide rail; 4, lock box; 401, chute; 402, second clamping portion; 403, first limit hole; 5, lock tongue assembly; 6, first memory spring; 7, pressure spring; 8, first limit pin; 9, second memory spring; 10, second limit pin; 11, first locking screw; 12, second locking screw; 13, lock cover; 1301, cavity. Detailed implementation manners
[0039] Hereinafter, exemplary embodiments of the present utility model will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present utility model can be more thoroughly understood and the scope of the present utility model can be completely conveyed to those skilled in the art.
[0040] The gradual popularization of new energy vehicles has greatly improved people's travel experience. Currently, vehicles generally adopt built-in handles, which can increase the aesthetic appearance of the product and reduce the wind resistance coefficient. Among them, the built-in handle usually realizes electric locking in the powered-on state. However, since new energy vehicles have a large number of built-in power batteries, in some special cases, such as when the chassis is impacted by external forces, there is a risk of spontaneous combustion. Once the vehicle is powered off, the door cannot be opened from the outside after locking, and even cannot be opened from the inside, thus bringing greater potential safety hazards to users.
[0041] In view of the above problems, the embodiments of the present utility model are proposed. The embodiments of the present utility model may include a fixed seat 1, a lock base 2, a lock box 4, a lock tongue assembly 5, and a first memory spring 6. A fixing hole is formed in the fixed seat 1, and a slide rail 3 is provided on the lock base 2. A chute 401 is formed in the lock box 4, and the chute 401 is engaged with the slide rail 3 so that the lock box 4 is slidably connected to the lock base 2. The lock tongue assembly 5 is fixed to the lock box 4. When the lock tongue assembly 5 acts, it approaches the fixed seat 1 and cooperates with the fixing hole to form a lock. The first memory spring 6 is located between the end of the lock box 4 away from the fixed seat 1 and the lock base 2. When the temperature reaches the first temperature threshold, the first memory spring 6 retracts to drive the lock tongue assembly 5 away from the fixing hole to release the lock. Thus, when the device is installed on the car door, it can be automatically unlocked when the temperature is high and the lock tongue assembly 5 is powered off, improving the safety driving coefficient of the vehicle.
[0042] Referring to Figure 1-7 , the embodiments of the present utility model provide a door lock device, and the door lock device may include a fixed seat 1, a lock base 2, a lock box 4, a lock tongue assembly 5, and a first memory spring 6, wherein:
[0043] A fixing hole is formed in the fixed seat 1, and a slide rail 3 is provided on the lock base 2. A chute 401 is formed in the lock box 4, and the chute 401 is engaged with the slide rail 3 so that the lock box 4 is slidably connected to the lock base 2. The lock tongue assembly 5 is fixed to the lock box 4. When the lock tongue assembly 5 acts, it approaches the fixed seat 1 and cooperates with the fixing hole to form a lock. The first memory spring 6 is located between the end of the lock box 4 away from the fixed seat 1 and the lock base 2. When the temperature reaches the first temperature threshold, the first memory spring 6 retracts to drive the lock tongue assembly 5 away from the fixing hole to release the lock.
[0044] In the embodiment of the present utility model, a fixing hole is provided on the fixing base 1, and the fixing hole is used to cooperate with the locking tongue assembly 5 to form the fixation at the connection between the fixing base 1 and the lock base 2. For example, a car door may include a door frame and a door body. Among them, the fixing base 1 may be installed on the door frame, and correspondingly, the lock base 2 may be installed on the door body. Or, the fixing base 1 may be installed on the door body, and correspondingly, the lock base 2 may be installed on the door frame. Thus, the locking of the car door can be realized. Among them, the locking tongue assembly 5 may perform a linear motion of approaching or departing from the fixing base 1 along the lock base 2 during the power-on process, so as to realize the locking and opening of the door lock device. Among them, the locking can also be understood as the fixing base 1 forming a limit on the locking tongue assembly 5 in the width direction of the vehicle, so that the users inside the vehicle cannot open the car door under normal temperature environment, thereby ensuring the driving safety factor.
[0045] A slide rail 3 is provided on the lock base 2, and a chute 401 is provided on the lock box 4. Among them, the slide rail 3 and the chute 401 are in shape fit, so that the lock box 4 can be slidably connected to the lock base 2. Among them, the locking tongue assembly 5 is fixed on the lock box 4, and the lock box 4 can drive the locking tongue assembly 5 to perform a linear motion of approaching or departing from the fixing base 1 under the action of an external force.
[0046] The first memory spring 6 is located between the end of the lock box 4 away from the fixing base 1 and the lock base 2. For example, one end of the first memory spring 6 is fixed to the end of the lock box 4 away from the fixing base 1, and the other end of the first memory spring 6 is fixed to the lock base 2. Among them, the first memory spring 6 refers to a temperature-sensitive driving element that can automatically expand and contract with temperature changes. It is made of a shape memory alloy material. Among them, the first memory spring 6 is in a normal state in a normal temperature environment, and it can limit the position of the lock box 4 on the lock base 2. Thus, in the normal temperature environment, when locking or opening the door lock device, the locking tongue assembly 5 can be electrically driven to work.
[0047] When the temperature inside the vehicle or the temperature of the first memory spring 6 reaches the first temperature threshold, the first memory spring 6 will retract, thereby driving the locking tongue assembly 5 and the lock box 4 as a whole to perform a linear motion away from the fixing hole (or the fixing base 1). The retraction length of the first memory spring 6 enables the locking tongue assembly 5 to slide out of the fixing hole, thereby releasing the fixed connection between the locking tongue assembly 5 and the fixing base 1. Thus, the locking is released. When the locking tongue assembly 5 is powered off, it can be automatically unlocked in a high-temperature environment, improving the driving safety factor of the vehicle.
[0048] The first temperature threshold can be determined based on the lower temperature limit value when there are risks such as vehicle fire. And based on the first temperature threshold, the shape memory alloy material of the first memory spring 6 can be selected, which is not limited here too much.
[0049] In some embodiments, the latch assembly 5 may include a latch body and a linear telescopic unit. The linear telescopic unit is fixedly connected to the latch body, and when the linear telescopic unit makes a telescopic movement, it drives the latch body to make a linear movement close to or away from the fixed seat 1. For example, the linear telescopic unit may include devices such as an electric telescopic rod. Thus, in the energized state, the latch body can be made to make a linear movement close to or away from the fixed seat 1, and thereby control the locking and unlocking (unlocking) of the door lock device. The latch assembly 5 described in the embodiments of the present invention is only an example and does not constitute a structural limitation on the latch assembly 5.
[0050] In summary, the embodiments of the present invention disclose a door lock device. The door lock device may include a fixed seat 1, a lock base 2, a lock box 4, a latch assembly 5, and a first memory spring 6. A fixing hole is provided on the fixed seat 1, and a slide rail 3 is provided on the lock base 2. A chute 401 is provided on the lock box 4, and the chute 401 cooperates with the slide rail 3 so that the lock box 4 is slidably connected to the lock base 2. The latch assembly 5 is fixed to the lock box 4. Among them, when the latch assembly 5 acts, it approaches the fixed seat 1 and cooperates with the fixing hole to form a lock. The first memory spring 6 is located between the end of the lock box 4 away from the fixed seat 1 and the lock base 2. And when the temperature reaches the first temperature threshold, the first memory spring 6 retracts to drive the latch assembly 5 away from the fixing hole to release the lock. Thus, when this device is installed on a car door, it can automatically unlock when the temperature is relatively high and the latch assembly 5 is powered off, improving the safety driving coefficient of the vehicle.
[0051] An optional embodiment of the utility model, referring to Figure 1 、 Figure 2 and Figure 3 As shown, a first engaging portion 201 is provided on the lock base 2, and a second engaging portion 402 is provided on the end of the lock box 4 close to the first engaging portion 201. One end of the first memory spring 6 is hooked in the first engaging portion 201, and the other end is hooked in the second engaging portion 402.
[0052] In the embodiment of the present utility model, a first engaging portion 201 is formed on the lock base 2, and a second engaging portion 402 is provided on the end face of the lock box 4 close to the first engaging portion 201. Correspondingly, one end of the first memory spring 6 is hooked in the first engaging portion 201, and the other end of the first memory spring 6 can be hooked in the second engaging portion 402. Herein, the hooking can be understood as that a hook portion is provided at the end of the first memory spring 6, and the hook portion cooperates with the hole formed in the first engaging portion 201 to form a fixation. Or, the hooking can also be understood as that the end of the first memory spring 6 extends a certain length and thus winds around the first engaging portion 201 to form a fixation. Thereby, the connection firmness between the first memory spring 6 and the lock box 4 can be improved, and the connection firmness between the first memory spring 6 and the lock base 2 can also be improved. Thus, when the first memory spring 6 is deformed by heat, it can be ensured that when the first memory spring 6 retracts, the lock box 4 is driven to move in a straight line away from the fixed seat 1, so as to release the locking of the lock tongue assembly 5. Thus, the user can also open the vehicle door when the lock tongue assembly 5 is powered off.
[0053] An optional embodiment of the utility model refers to Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, the door lock device may include a fixed seat 1, a lock base 2, a lock box 4, a lock tongue assembly 5, a first memory spring 6, a pressure spring 7, a first limit pin 8, a second memory spring 9 and a second limit pin 10. Among them, a fixing hole is formed in the fixed seat 1, and a slide rail 3 is provided on the lock base 2. A slide groove 401 is formed in the lock box 4, and the slide groove 401 cooperates with the slide rail 3 so that the lock box 4 is slidably connected to the lock base 2. The lock tongue assembly 5 is fixed to the lock box 4. When the lock tongue assembly 5 acts, it approaches the fixed seat 1 and cooperates with the fixing hole to form a lock. The first memory spring 6 is located between the end of the lock box 4 away from the fixed seat 1 and the lock base 2. And when the temperature reaches the first temperature threshold, the first memory spring 6 retracts to drive the lock tongue assembly 5 away from the fixing hole to release the lock.
[0054] The lock base 2 is provided with a second limiting hole 202, and a first limiting hole 403 is provided on the end surface of the lock box 4 close to the slide rail 3. The compression spring 7 is embedded in the first limiting hole 403. The first limiting pin 8 is embedded in the first limiting hole 403 and is fixedly connected to the compression spring 7. The end of the first limiting pin 8 away from the compression spring 7 extends outside the lock box 4. The second memory spring 9 is embedded in the second limiting hole 202. The second limiting pin 10 is embedded in the second limiting hole 202 and is fixedly connected to the second memory spring 9.
[0055] When the first limiting pin 8 slides to the position of the second limiting hole 202, the first limiting pin 8 abuts against the second limiting pin 10 and compresses the second memory spring 9. Moreover, the first limiting pin 8 extends into the second limiting hole 202 to lock the positions of the lock box 4 and the lock base 2. When the temperature reaches the first temperature threshold, the second memory spring 9 elongates, pushing the first limiting pin 8 out of the second limiting hole 202 to release the position lock.
[0056] In the embodiment of the present utility model, a fixing hole is provided on the fixing seat 1, and the fixing hole is used to cooperate with the lock tongue assembly 5 to form the fixation at the connection between the fixing seat 1 and the lock base 2. For example, a car door may include a door frame and a door body. Among them, the fixing seat 1 may be installed on the door frame, and correspondingly, the lock base 2 may be installed on the door body. Or, the fixing seat 1 may be installed on the door body, and correspondingly, the lock base 2 may be installed on the door frame. Thus, the locking of the car door can be realized. Among them, the lock tongue assembly 5 may move linearly along the lock base 2, approaching or departing from the fixing seat 1 during the energization process, so as to realize the locking and unlocking of the door lock device. The locking can also be understood as that the fixing seat 1 forms a limit on the lock tongue assembly 5 in the width direction of the vehicle, so that the user inside the car cannot open the door under normal temperature environment, thereby ensuring the driving safety factor.
[0057] The slide rail 3 is provided on the lock base 2, and a chute 401 is provided on the lock box 4. Among them, the slide rail 3 and the chute 401 are in shape fit, so that the lock box 4 can be slidably connected to the lock base 2. Among them, the lock tongue assembly 5 is fixed to the lock box 4, and the lock box 4 can drive the lock tongue assembly 5 to move linearly, approaching or departing from the fixing seat 1, under the action of an external force.
[0058] The first memory spring 6 is located between the end of the lock box 4 away from the fixing seat 1 and the lock base 2. For example, one end of the first memory spring 6 is fixed to the end of the lock box 4 away from the fixing seat 1, and the other end of the first memory spring 6 is fixed to the lock base 2. The first memory spring 6 refers to a temperature-sensing drive element that can automatically expand and contract with temperature changes. It is made of shape memory alloy material. The first memory spring 6 is in a normal state at room temperature, and it can limit the position of the lock box 4 on the lock base 2, so that in a normal temperature environment, when the door lock device is locked or opened, the lock tongue assembly 5 can be driven electrically to work.
[0059] When the temperature inside the vehicle or the temperature of the first memory spring 6 reaches the first temperature threshold, the first memory spring 6 will retract, thereby driving the lock tongue assembly 5 and the lock box 4 as a whole to make a linear motion away from the fixing hole (or the fixing seat 1). The retracted length of the first memory spring 6 causes the lock tongue assembly 5 to slide out of the fixing hole, thereby releasing the fixed connection between the lock tongue assembly 5 and the fixing seat 1. In this way, the lock is released, and when the lock tongue assembly 5 is powered off, it can be automatically unlocked in a high temperature environment, thereby improving the safety factor of the vehicle.
[0060] The first temperature threshold may be determined based on the lower limit of the temperature at which the vehicle has a risk of fire, etc. The shape memory alloy material of the first memory spring 6 may be selected based on the first temperature threshold, and no further limitation is made here.
[0061] In the embodiment of the present utility model, the first limiting hole 403 formed on the lock box 4 communicates with the sliding groove 401. The first limiting hole 403 formed on the end face of the lock box 4 close to the slide rail 3 (which can also be called the end face of the lock box 4 parallel to the slide rail 3) communicates with the slide rail 3. In other words, the first limiting hole 403 can be formed on the groove wall of the sliding groove 401. For example, the first limiting hole 403 can be horizontally arranged along the width direction of the sliding groove 401. The compression spring 7 is embedded in the first limiting hole 403, and the first limiting pin 8 is also embedded in the first limiting hole 403, and the end away from the compression spring 7 extends outside the lock box 4, that is, extends into the sliding groove 401. One end of the compression spring 7 is fixedly connected to the lock box 4, and the other end is fixed to the first limiting pin 8. Thus, when the lock box 4 slides along the lock base 2, the first limiting pin 8 is in pressure contact with the slide rail 3, so that the compression spring 7 is kept in a compressed state. When the compression spring 7 is in a normal state, the end of the first limiting pin 8 away from the compression spring 7 extends into the sliding groove 401.
[0062] The second limiting hole 202 formed on the lock base 2 is located on the slide rail 3. That is to say, the second limiting hole 202 can be horizontally formed along the width direction of the slide rail 3. Both the second memory spring 9 and the second limiting pin 10 are arranged in the second limiting hole 202. Among them, the second memory spring 9 refers to a temperature-sensitive driving element that can automatically expand and contract with temperature change. It is made of shape memory alloy material. Among them, the second memory spring 9 is in a normal state in a normal temperature environment, and it can limit the position of the second limiting pin 10 in the second limiting hole 202. For example, when the second memory spring 9 is in a normal state, the end of the second limiting pin 10 away from the second memory spring 9 is embedded in the second limiting hole 202 and does not extend outside the second limiting hole 202, or does not extend to the outer surface of the guide rail.
[0063] When the temperature of the first memory spring 6 drops and its deformation returns to the normal state in a normal temperature environment, the first limiting pin 8 slides to the position of the second limiting hole 202, and due to the deformation recovery of the compression spring 7, the first limiting pin 8 enters the second limiting hole 202 and is in pressure contact with the second limiting pin 10. Thus, the position of the lock box 4 is limited. Therefore, the stability of the position locking of the lock box 4 is improved by the first memory spring 6, the compression spring 7 and the first limiting pin 8.
[0064] When the temperature inside the vehicle is too high, the first memory spring 6 will retract, and the second memory spring 9 will elongate. After the second memory spring 9 elongates, the end of the first limit pin 8 close to the second limit pin 10 is pushed to the surface of the slide rail 3. At this time, the end of the second limit pin 10 close to the first limit pin 8 is flush with the surface of the slide rail 3. Thus, the position locking of the lock box 4 by the first limit pin 8 is released. Then, under the retraction force of the first memory spring 6, the lock tongue assembly 5 and the lock box 4 as a whole are driven to move in a straight line away from the fixing hole (or the fixing seat 1). The retraction length of the first memory spring 6 causes the lock tongue assembly 5 to slide out of the fixing hole, thereby releasing the fixed connection between the lock tongue assembly 5 and the fixing seat 1. Thus, the locking is released. When the lock tongue assembly 5 is powered off, it can be automatically unlocked in a high-temperature environment, improving the safety driving coefficient of the vehicle.
[0065] In some embodiments, the lock tongue assembly 5 may include a lock tongue body and a linear expansion and contraction unit. The linear expansion and contraction unit is fixedly connected to the lock tongue body and drives the lock tongue body to move in a straight line close to or away from the fixing seat 1 when the linear expansion and contraction unit makes an expansion and contraction movement. For example, the linear expansion and contraction unit may include devices such as an electric telescopic rod. Thus, in the energized state, the lock tongue body is enabled to move in a straight line close to or away from the fixing seat 1, and thereby the locking and unlocking (release of locking) of the door lock device are controlled. The lock tongue assembly 5 described in the embodiments of the present invention is only an example and does not constitute a limitation on the structure of the lock tongue assembly 5.
[0066] An optional embodiment of the utility model, referring to Figure 4 、 Figure 5 、 Figure 6 and Figure 7 as shown, the door lock device further includes a first locking screw 11. The first locking screw 11 passes through the lock box 4 and extends into the first limit hole 403 to limit the self-rotation of the first limit pin 8.
[0067] In the embodiment of the present utility model, the door lock device may further include a first locking screw 11. The first locking screw 11 penetrates through the lock box 4. For example, an internal thread is provided on the lock box 4 and is matched with the external thread on the first locking screw 11 to form a threaded connection between the first locking screw 11 and the lock box 4. One end of the first locking screw 11 extends into the first limiting hole 403, so as to prevent the first limiting pin 8 from rotating in the first limiting hole 403. For example, the first locking screw 11 may be in contact with or press against the first limiting pin 8. The pressing force can be set to be small and does not affect the sliding of the first limiting pin 8 along the first limiting hole 403 under the action of the pressure spring 7.
[0068] An alternative embodiment of the utility model, referring to Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, the door lock device further includes a second locking screw 12. The second locking screw 12 penetrates through the locking base and extends into the second limiting hole 202 to limit the self-rotation of the second limiting pin 10.
[0069] In the embodiment of the present utility model, the door lock device may further include a second locking screw 12. The second locking screw 12 penetrates through the lock base 2. For example, an internal thread is provided on the lock base 2 and is matched with the external thread on the second locking screw 12 to form a threaded connection between the second locking screw 12 and the lock base 2. One end of the second locking screw 12 extends into the second limiting hole 202, so as to prevent the second limiting pin 10 from rotating in the second limiting hole 202. For example, the second locking screw 12 may be in contact with or press against the second limiting pin 10. The pressing force can be set to be small and does not affect the sliding of the second limiting pin 10 along the second limiting hole 202 under the action of the second memory spring 9.
[0070] In an alternative embodiment of the utility model, a third clamping portion is provided on the end face of the first limiting pin 8 close to the pressure spring 7, and one end of the pressure spring 7 is hung in the third clamping portion.
[0071] In the embodiment of the present utility model, a third clamping portion is provided on the end face of the first limiting pin 8 close to the pressure spring 7, and one end of the pressure spring 7 is hung in the third clamping portion. The end of the pressure spring 7 far from the first limiting pin 8 may also be hung on the pressure clamping portion provided on the lock box 4, so as to improve the connection stability between the pressure spring 7 and the lock box 4 and between the pressure spring 7 and the first limiting pin 8.
[0072] An alternative embodiment of the utility model, a fourth engaging portion is provided on an end face of the second limiting pin 10 close to the second memory spring 9, wherein one end of the second memory spring 9 is hooked in the fourth engaging portion.
[0073] In the embodiment of the present utility model, a fourth engaging portion is provided on an end face of the second limiting pin 10 close to the second memory spring 9, one end of the second memory spring 9 is hooked in the fourth engaging portion, and an end of the second memory spring 9 far from the second limiting pin 10 can also be hooked in a memory engaging portion provided on the lock base 2, thereby improving the connection stability between the second memory spring 9 and the lock base 2, and between the second memory spring 9 and the second limiting pin 10.
[0074] An alternative embodiment of the utility model, referring to Figure 3 、 Figure 4 、 Figure 5 and Figure 6 as shown, the slide rail 3 protrudes outward from the lock base 2 in the direction close to the lock box 4. The slide rail 3 can protrude horizontally outward in the width direction of the lock base 2. For example, the cross-sectional shape of the slide rail 3 in its width direction can be semicircular. Thus, the lock box 4 can be assembled along the length direction of the slide rail 3. And the slide rail 3 can limit the lock box 4 in the height direction of the slide rail 3, improving the sliding convenience between the lock base 2 and the lock box 4. In order to improve the connection convenience between the slide rail 3 and the lock base 2, the slide rail 3 and the lock base 2 are of an integral structure.
[0075] In some other embodiments, the slide rail 3 and the lock base 2 can also be fixed by welding or other means.
[0076] An alternative embodiment of the utility model, referring to Figure 4 、 Figure 5 and Figure 6As shown, the door lock device may include a locking tongue assembly 5, a first memory spring 6, a lock cover 13, a pressure spring 7, a first limit pin 8, a second memory spring 9, and a second limit pin 10. Among them, a fixing hole is provided on the fixing base 1, and a sliding rail 3 is provided on the lock base 2. A sliding groove 401 is provided on the lock box 4, and the sliding groove 401 cooperates with the sliding rail 3 to enable the lock box 4 to be slidably connected to the lock base 2. The lock cover 13 and the lock box 4 cooperate to form a cavity 1301, the locking tongue assembly 5 is installed in the cavity 1301 and extends outside the lock box 4. Among them, when the locking tongue assembly 5 moves, it approaches the fixing base 1 and cooperates with the fixing hole to form a lock. The first memory spring 6 is located between the end of the lock box 4 away from the fixing base 1 and the lock base 2, and when the temperature reaches the first temperature threshold, the first memory spring 6 retracts to drive the locking tongue assembly 5 away from the fixing hole to release the lock.
[0077] A second limit hole 202 is provided on the lock base 2, and a first limit hole 403 is provided on the end face of the lock box 4 close to the sliding rail 3. The pressure spring 7 is embedded in the first limit hole 403. The first limit pin 8 is embedded in the first limit hole 403 and is fixedly connected to the pressure spring 7. The end of the first limit pin 8 away from the pressure spring 7 extends outside the lock box 4. The second memory spring 9 is embedded in the second limit hole 202. The second limit pin 10 is embedded in the second limit hole 202 and is fixedly connected to the second memory spring 9.
[0078] When the first limit pin 8 slides to the second limit hole 202, the first limit pin 8 abuts against the second limit pin 10 and compresses the second memory spring 9, and the first limit pin 8 extends into the second limit hole 202 to form a position lock on the lock box 4 and the lock base 2. When the temperature reaches the first temperature threshold, the second memory spring 9 elongates and pushes the first limit pin 8 out of the second limit hole 202 to release the position lock.
[0079] In the embodiment of the present utility model, a fixing hole is provided on the fixing base 1, and the fixing hole is used to cooperate with the lock tongue assembly 5 to form the fixation at the connection between the fixing base 1 and the lock base 2. For example, a car door may include a door frame and a door body. Among them, the fixing base 1 may be installed on the door frame, and correspondingly, the lock base 2 may be installed on the door body. Or, the fixing base 1 may be installed on the door body, and correspondingly, the lock base 2 may be installed on the door frame. Thus, the locking of the car door can be achieved. The lock tongue assembly 5 is installed in the cavity 1301 of the lock box 4 and can be enclosed by the lock cover 13 for the lock tongue assembly 5, thereby playing a role in protecting the lock tongue assembly 5.
[0080] During the power-on process, the lock tongue assembly 5 can move linearly along the lock base 2, approaching or moving away from the fixing base 1, thereby realizing the locking and unlocking of the door lock device. Among them, locking can also be understood as the fixing base 1 forming a limit on the lock tongue assembly 5 in the width direction of the vehicle, so that the user inside the vehicle cannot open the door under normal temperature conditions, thus ensuring the driving safety factor.
[0081] A slide rail 3 is provided on the lock base 2, and a slide groove 401 is provided on the lock box 4. Among them, the slide rail 3 and the slide groove 401 are in shape fit, so that the lock box 4 can be slidably connected to the lock base 2. Among them, the lock tongue assembly 5 is fixed to the lock box 4, and the lock box 4 can drive the lock tongue assembly 5 to move linearly approaching or moving away from the fixing base 1 under the action of an external force.
[0082] The first memory spring 6 is located between the end of the lock box 4 away from the fixing base 1 and the lock base 2. For example, one end of the first memory spring 6 is fixed to the end of the lock box 4 away from the fixing base 1, and the other end of the first memory spring 6 is fixed to the lock base 2. Among them, the first memory spring 6 refers to a temperature-sensitive driving element that can automatically expand and contract with temperature change. It is made of shape memory alloy material. Among them, the first memory spring 6 is in a normal state in a normal temperature environment, and it can limit the position of the lock box 4 on the lock base 2. Thus, in a normal temperature environment, when locking or unlocking the door lock device, the lock tongue assembly 5 can be electrically driven to work.
[0083] When the temperature inside the vehicle or the temperature of the first memory spring 6 reaches the first temperature threshold, the first memory spring 6 will retract, thereby driving the lock tongue assembly 5 and the lock box 4 as a whole to move linearly away from the fixing hole (or the fixing base 1). The retraction length of the first memory spring 6 causes the lock tongue assembly 5 to slide out of the fixing hole, thereby releasing the fixed connection between the lock tongue assembly 5 and the fixing base 1. Thus, the locking is released. When the lock tongue assembly 5 is powered off, it can be automatically unlocked in a high-temperature environment, improving the safety driving coefficient of the vehicle.
[0084] The first temperature threshold can be determined based on the lower temperature limit value when there are risks such as vehicle fires. And based on the first temperature threshold, the shape memory alloy material of the first memory spring 6 can be selected, which will not be elaborated here.
[0085] In the embodiment of the present invention, the first limiting hole 403 formed on the lock box 4 communicates with the sliding groove 401. The first limiting hole 403 formed on the end face of the lock box 4 close to the slide rail 3 (which can also be called the end face of the lock box 4 parallel to the slide rail 3) communicates with the slide rail 3. In other words, the first limiting hole 403 can be formed on the groove wall of the sliding groove 401. For example, the first limiting hole 403 can be horizontally arranged along the width direction of the sliding groove 401. The pressure spring 7 is embedded in the first limiting hole 403, and the first limiting pin 8 is also embedded in the first limiting hole 403, and the end far from the pressure spring 7 extends outside the lock box 4, that is, extends into the sliding groove 401. One end of the pressure spring 7 is fixedly connected to the lock box 4, and the other end is fixed to the first limiting pin 8. Thus, when the lock box 4 slides along the lock base 2, the first limiting pin 8 is in pressure contact with the slide rail 3, so that the pressure spring 7 is kept in a compressed state. When the pressure spring 7 is in a normal state, the end of the first limiting pin 8 far from the pressure spring 7 extends into the sliding groove 401.
[0086] The second limiting hole 202 formed on the lock base 2 is located on the slide rail 3. That is to say, the second limiting hole 202 can be horizontally formed along the width direction of the slide rail 3. Both the second memory spring 9 and the second limiting pin 10 are arranged in the second limiting hole 202. Among them, the second memory spring 9 refers to a temperature-sensitive driving element that can automatically expand and contract with temperature changes. It is made of shape memory alloy material. Among them, the second memory spring 9 is in a normal state in the normal temperature environment, and it can limit the position of the second limiting pin 10 in the second limiting hole 202. For example, when the second memory spring 9 is in a normal state, the end of the second limiting pin 10 away from the second memory spring 9 is embedded in the second limiting hole 202 and will not extend outside the second limiting hole 202, or will not extend to the outer surface of the guide rail.
[0087] When the first memory spring 6 returns to its normal state at normal temperature after the temperature drops, the first limiting pin 8 slides to the position of the second limiting hole 202, and due to the deformation recovery of the pressure spring 7, the first limiting pin 8 enters the second limiting hole 202 and forms a pressing contact with the second limiting pin 10. Thereby, the position of the lock box 4 is limited. Thus, the stability of the position locking of the lock box 4 is improved by the first memory spring 6, the pressure spring 7 and the first limiting pin 8. At this time, through the normal operation of the lock tongue assembly 5, the normal locking and opening of the vehicle door are realized.
[0088] In the case of too high temperature inside the vehicle, the first memory spring 6 will retract, the second memory spring 9 will elongate. After the second memory spring 9 elongates, it pushes the end of the first limiting pin 8 close to the second limiting pin 10 to the surface of the slide rail 3. At this time, the end of the second limiting pin 10 close to the first limiting pin 8 is flush with the surface of the slide rail 3. Thus, the position locking of the first limiting pin 8 on the lock box 4 is released. Thereby, under the retraction force of the first memory spring 6, the lock tongue assembly 5 and the lock box 4 as a whole are driven to move in a straight line away from the fixing hole (or the fixing seat 1). The retraction length of the first memory spring 6 causes the lock tongue assembly 5 to slide out of the fixing hole, thereby releasing the fixed connection between the lock tongue assembly 5 and the fixing seat 1. Thus, the locking is released. In the case of power-off of the lock tongue assembly 5, it can be automatically unlocked in a high-temperature environment, improving the safety driving coefficient of the vehicle.
[0089] In summary, the embodiment of the present utility model discloses a door lock device, which may include a fixed seat 1, a lock base 2, a lock box 4, a lock tongue assembly 5, and a first memory spring 6. A fixing hole is provided on the fixed seat 1, and a slide rail 3 is provided on the lock base 2. A chute 401 is provided on the lock box 4, and the chute 401 cooperates with the slide rail 3 to enable the lock box 4 to be slidably connected to the lock base 2. The lock tongue assembly 5 is fixed to the lock box 4. When the lock tongue assembly 5 acts, it approaches the fixed seat 1 and cooperates with the fixing hole to form a lock. The first memory spring 6 is located between the end of the lock box 4 away from the fixed seat 1 and the lock base 2. And when the temperature reaches the first temperature threshold, the first memory spring 6 retracts to drive the lock tongue assembly 5 away from the fixing hole to release the lock. Therefore, when this device is installed on a car door, it can be automatically unlocked when the temperature is high and the lock tongue assembly 5 is powered off, improving the safety driving coefficient of the vehicle.
[0090] The embodiment of the present utility model also discloses a car door, which may include the door lock device as described in any one of the above utility model embodiments.
[0091] In the embodiment of the present utility model, the car door may include a door frame and a door body. Among them, the fixed seat 1 may be installed on the door frame or the door body, and the lock base 2 may be installed on the door body or the door frame.
[0092] In summary, the embodiment of the present utility model discloses a car door, which may include a fixed seat 1, a lock base 2, a lock box 4, a lock tongue assembly 5, and a first memory spring 6. A fixing hole is provided on the fixed seat 1, and a slide rail 3 is provided on the lock base 2. A chute 401 is provided on the lock box 4, and the chute 401 cooperates with the slide rail 3 to enable the lock box 4 to be slidably connected to the lock base 2. The lock tongue assembly 5 is fixed to the lock box 4. When the lock tongue assembly 5 acts, it approaches the fixed seat 1 and cooperates with the fixing hole to form a lock. The first memory spring 6 is located between the end of the lock box 4 away from the fixed seat 1 and the lock base 2. And when the temperature reaches the first temperature threshold, the first memory spring 6 retracts to drive the lock tongue assembly 5 away from the fixing hole to release the lock. Therefore, when this device is installed on a car door, it can be automatically unlocked when the temperature is high and the lock tongue assembly 5 is powered off, improving the safety driving coefficient of the vehicle.
[0093] The embodiment of the present utility model also discloses a vehicle, which may include the car door as described in the above utility model embodiment.
[0094] In summary, the embodiment of the present utility model discloses a vehicle, which may include a fixed seat 1, a lock base 2, a lock box 4, a lock tongue assembly 5 and a first memory spring 6. A fixing hole is provided on the fixed seat 1, and a slide rail 3 is provided on the lock base 2. A chute 401 is provided on the lock box 4, and the chute 401 cooperates with the slide rail 3 to enable the lock box 4 to be slidably connected to the lock base 2. The lock tongue assembly 5 is fixed to the lock box 4. When the lock tongue assembly 5 acts, it approaches the fixed seat 1 and cooperates with the fixing hole to form a lock. The first memory spring 6 is located between the end of the lock box 4 away from the fixed seat 1 and the lock base 2. And when the temperature reaches the first temperature threshold, the first memory spring 6 retracts to drive the lock tongue assembly 5 away from the fixing hole to release the lock. Thus, when the device is installed on the car door, it can automatically unlock when the temperature is relatively high and the lock tongue assembly 5 is powered off, improving the safety driving coefficient of the vehicle.
[0095] Each embodiment in this specification is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other.
[0096] It is easy for those skilled in the art to think that any combination application of the above various embodiments is feasible. Therefore, any combination among the above various embodiments is an implementation scheme of the present utility model. However, due to space limitations, this specification will not elaborate on each one here.
[0097] In the specification provided here, a large number of specific details are described. However, it can be understood that the embodiments of the present utility model can be practiced without these specific details. In some instances, well-known methods, structures and technologies are not shown in detail so as not to obscure the understanding of this specification.
[0098] Similarly, it should be understood that in order to streamline the present utility model and help understand one or more of the various aspects of the utility model, in the above description of the exemplary embodiments of the present utility model, the various features of the present utility model are sometimes grouped together into a single embodiment, figure, or description thereof.
[0099] In addition, those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments rather than other features, the combination of features of different embodiments means that it is within the scope of the present utility model and forms different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.
Claims
1. A door lock device, characterized in that, The door lock device includes: A fixed seat (1) with a fixing hole formed thereon; A lock base (2) provided with a slide rail (3) thereon; A lock box (4) with a chute (401) formed thereon, and the chute (401) is engaged with the slide rail (3) so that the lock box (4) is slidably connected to the lock base (2); A lock tongue assembly (5) fixed to the lock box (4), wherein when the lock tongue assembly (5) operates, it approaches the fixed seat (1) and cooperates with the fixing hole to form a lock; A first memory spring (6) located between the end of the lock box (4) far from the fixed seat (1) and the lock base (2), and when the temperature reaches the first temperature threshold, the first memory spring (6) retracts to drive the lock tongue assembly (5) away from the fixing hole to release the lock.
2. The door lock device according to claim 1, characterized in that, A first engaging portion (201) is provided on the lock base (2), and a second engaging portion (402) is provided on the end of the lock box (4) close to the first engaging portion (201). One end of the first memory spring (6) is hooked in the first engaging portion (201), and the other end is hooked in the second engaging portion (402).
3. The door lock device according to claim 1, characterized in that, A second limiting hole (202) is formed on the lock base (2), and a first limiting hole (403) is formed on the end face of the lock box (4) close to the slide rail (3); The door lock device further includes: A pressure spring (7) embedded in the first limiting hole (403); A first limiting pin (8) embedded in the first limiting hole (403) and fixedly connected to the pressure spring (7). The end of the first limiting pin (8) far from the pressure spring (7) extends outside the lock box (4); A second memory spring (9) embedded in the second limiting hole (202); A second limiting pin (10) embedded in the second limiting hole (202) and fixedly connected to the second memory spring (9). When the first limiting pin (8) slides to the second limiting hole (202), the first limiting pin (8) abuts against the second limiting pin (10) and compresses the second memory spring (9), and the first limiting pin (8) extends into the second limiting hole (202) to lock the positions of the lock box (4) and the lock base (2); When the temperature reaches the first temperature threshold, the second memory spring (9) elongates to push the first limiting pin (8) out of the second limiting hole (202) to release the position lock.
4. The door lock device according to claim 3, characterized in that, The door lock device further includes a first locking screw (11) passing through the lock box (4) and extending into the first limiting hole (403) to limit the self-rotation of the first limiting pin (8).
5. The door lock device according to claim 3, characterized in that, The door lock device further includes a second locking screw (12), the second locking screw (12) penetrates through the lock base, and extends into the second limiting hole (202) to limit the rotation of the second limiting pin (10).
6. The door lock device according to claim 3, characterized in that, A third engaging portion is provided on an end face of the first limiting pin (8) close to the pressure spring (7), wherein one end of the pressure spring (7) is hooked in the third engaging portion.
7. The door lock device according to claim 3, characterized in that, A fourth engaging portion is formed on an end face of the second limiting pin (10) close to the second memory spring (9), wherein one end of the second memory spring (9) is hooked in the fourth engaging portion.
8. The door lock device according to claim 1, wherein, The slide rail (3) protrudes outward from the lock base (2) in the direction close to the lock box (4).
9. The door lock device according to claim 8, characterized in that, The slide rail (3) and the lock base (2) are of an integral structure.
10. The door lock device according to claim 1, characterized in that, The door lock device further includes a lock cover (13), the lock cover (13) and the lock box (4) cooperate to form a cavity (1301), the lock tongue assembly (5) is installed in the cavity (1301), and extends outside the lock box (4).
11. A car door, characterized in that, The vehicle door includes the door lock device according to any one of claims 1-10.
12. A vehicle, characterized in that, The vehicle includes the vehicle door according to claim 11.