Intelligent key

Abstract

The utility model provides an intelligent key which comprises an outer shell and a circuit board arranged in the outer shell, a control circuit is arranged on the circuit board, the outer shell comprises a main shell body and a battery cover, a through hole is formed in the main shell body, the through hole and the circuit board are matched to form a battery installation groove in a surrounding mode, and the battery installation groove is arranged in the battery installation groove. The battery mounting groove is internally provided with a positive electrode and a negative electrode, the positive electrode and the negative electrode are respectively and electrically connected with the control circuit, the positive electrode is arranged on the inner wall of the through hole, and the battery cover covers an opening of the battery mounting groove. The risk that the edge of the positive electrode makes contact with a control circuit line due to external force is reduced through the separation design of the positive electrode and the circuit board, so that the possibility that the line is scratched, and open circuit or short circuit is caused is greatly reduced, and the structural stability and use safety of the intelligent key are remarkably improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automotive auxiliary devices, and particularly relates to an intelligent key. Background Art

[0002] In the trend of automotive intelligence and networking, the intelligent key, as a bridge connecting the vehicle and the user, plays a crucial role. It not only undertakes the traditional functions of vehicle unlocking and starting, but also integrates many enhanced functions through the integration of advanced technologies and innovative designs, greatly enriching the interaction experience between the user and the vehicle.

[0003] Existing intelligent keys widely use button batteries as power sources to meet the power requirements of intelligent keys in daily use. A special battery slot is designed inside the intelligent key to accommodate the button battery. The bottom of the battery slot is directly formed by a specific area of the circuit board, achieving structural compactness and integration. The circuit board integrates positive and negative contact points, as well as control circuits responsible for realizing various functions of the intelligent key. These control circuits are closely connected to the positive and negative electrodes, jointly constituting the core of power transmission and signal processing of the intelligent key.

[0004] However, this design in the prior art has significant hidden dangers. Specifically, the positive electrode is usually designed as a sheet structure and directly laid on the circuit board. When the button battery is installed in the battery slot, its bottom will directly press on the positive electrode to achieve electrical connection. However, due to the certain weight of the button battery itself, plus the installation pressure of the battery cover, or improper operation that may occur during the installation process, the positive electrode with this sheet structure is prone to deformation or displacement under external forces.

[0005] More seriously, this deformation or displacement may directly cause the edge of the positive electrode to come into contact with the circuit lines of the control circuit on the circuit board, thereby causing two problems: one is that the positive electrode may scratch the circuit lines of the control circuit, resulting in a circuit break and affecting the normal function of the intelligent key; the other is that if the scratch causes the positive electrode to accidentally contact other parts of the control circuit (such as the lines that should be insulated), a short - circuit phenomenon may also occur, which will not only damage the intelligent key, but also pose a potential threat to the vehicle's safety system.

[0006] Therefore, this electrical connection design in existing automotive intelligent keys has obvious technical defects, which not only reduces the durability and reliability of the intelligent key, but also increases the user's usage cost and risk. There is an urgent need for a protection measure to solve the above problems and improve the overall performance and user experience of the intelligent key. Summary of the Utility Model

[0007] The primary object of the utility model is to provide an intelligent key to solve at least one of the above problems.

[0008] To achieve one of the purposes of the present utility model, an intelligent key is provided, which includes a housing and a circuit board disposed within the housing. A control circuit is arranged on the circuit board. The housing includes a main housing and a battery cover. A through hole is formed in the main housing, and the through hole cooperates with the circuit board to enclose and form a battery installation slot. A positive electrode and a negative electrode are installed in the battery installation slot, and the positive electrode and the negative electrode are respectively electrically connected to the control circuit. The positive electrode is disposed on the inner wall of the through hole, and the battery cover covers the opening of the battery installation slot.

[0009] Further, one of the regions on the front surface of the circuit board constitutes a battery installation position, and the battery installation position cooperates with the through hole to form the battery installation slot.

[0010] Further, the positive electrode includes at least one elastic electrical connection part, and the elastic electrical connection part protrudes from the inner wall towards the central axis of the through hole.

[0011] Specifically, the elastic electrical connection part is an elastic protrusion, and the outer convex surface of the elastic electrical connection part is an arc surface.

[0012] In one embodiment, the negative electrode is disposed on the battery installation position of the circuit board, and a grounding circuit is arranged on the battery installation position of the control circuit, or no circuit is arranged on the battery installation position.

[0013] In one embodiment, the negative electrode is disposed on the inner wall of the through hole.

[0014] In one embodiment, the battery cover includes a cover plate and at least one clamping part disposed on the cover plate. The main housing is provided with a clamping groove corresponding to the clamping part, and the clamping part cooperates with the clamping groove for clamping.

[0015] In one embodiment, the clamping part is disposed on the edge of the cover plate and extends away from the cover plate. The clamping groove is disposed outside the battery installation slot, and the clamping groove is fixedly clamped with the clamping part.

[0016] Further, the clamping groove is sequentially divided into a rotation section and a clamping section along the rotation path of the clamping part. The rotation section can accommodate the clamping part. A clamping protrusion is provided on the clamping part, and the clamping protrusion is clamped with the clamping section.

[0017] In one embodiment, the clamping part includes a rotating surface, the rotating surface has the same orientation as the opening of the battery installation slot, and anti-slip patterns or a plurality of anti-slip strips are provided on the rotating surface.

[0018] Compared with the prior art, the present utility model has multiple advantages, including but not limited to:

[0019] On the one hand, by setting the positive electrode on the inner wall of the through hole of the battery installation groove in the intelligent key of the present utility model instead of directly laying it on the circuit board, it effectively avoids the direct impact and deformation of the button battery on the positive electrode caused by gravity, battery cover pressure or improper operation during installation or use. The separated design of the positive electrode and the circuit board reduces the risk of contact between the edge of the positive electrode and the control circuit lines caused by external forces, thus greatly reducing the possibility of scratching the lines, causing open circuits or short circuits, and significantly improving the structural stability and use safety of the intelligent key. Even if there is slight improper operation or external impact during use, due to the physical isolation between the positive electrode and the control circuit, it can resist the influence of these adverse factors to a certain extent. It reduces the risk of short circuits or open circuits caused by accidental factors, improves the fault tolerance and anti-interference ability of the intelligent key, and ensures the stable operation of the vehicle safety system.

[0020] On the other hand, by setting the positive electrode on the inner wall of the through hole in the present utility model, the structure of the battery installation groove is made more compact and reasonable, which is beneficial to the layout and wiring of other components on the circuit board. This design not only improves the utilization rate of the internal space of the intelligent key, but also makes the overall structure more beautiful and tidy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of the embodiments in conjunction with the drawings, wherein:

[0022] Figure 1 is a bottom view schematic diagram of the intelligent key (the clamping part is installed in the rotating section) of a typical embodiment of the present utility model.

[0023] Figure 2 is a bottom view schematic diagram of the intelligent key (the clamping part is installed in the clamping section) of a typical embodiment of the present utility model.

[0024] Figure 3 is an exploded schematic diagram of the intelligent key of a typical embodiment of the present utility model.

[0025] Figure 4 is a structural schematic diagram of the circuit board of the intelligent key of a typical embodiment of the present utility model.

[0026] Figure 5 is an assembly schematic diagram of the button battery of the intelligent key of a typical embodiment of the present utility model.

[0027] Figure 6 is a partial structural schematic diagram of the intelligent key (the battery cover is not shown) of a typical embodiment of the present utility model.

[0028] Figure 7 is Figure 6 a cross-sectional schematic diagram in the B-B direction.

[0029] Figure 8 The top view schematic diagram of the smart key according to a typical embodiment of the present utility model.

[0030] Figure 9 is Figure 8 The cross-sectional schematic diagram in the A-A direction of Specific embodiments

[0031] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and cannot be construed as a limitation to the present utility model.

[0032] Those skilled in the art of the present technology can understand that unless specifically stated otherwise, the singular forms "a", "an", "the", and "said" used herein may also include the plural forms. It should be further understood that the term "comprising" used in the specification of the present utility model means the presence of the described features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or their groups. It should be understood that when we say that an element is "connected" or "coupled" to another element, it can be directly connected or coupled to other elements, or there may also be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The phrase "and / or" used herein includes all or any unit and all combinations of one or more related listed items.

[0033] Those skilled in the art of the present technology can understand that unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of those of ordinary skill in the art to which the present utility model belongs. It should also be understood that terms such as those defined in a general dictionary should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted with an idealized or overly formal meaning unless specifically defined as here.

[0034] The present utility model provides a smart key, and the battery of the smart key will not press the positive electrode on the circuit board, so as to avoid scratching the circuit on the circuit board, protect the circuit on the circuit board, and enable the smart key to work well.

[0035] In a typical embodiment of the present utility model, the smart key 100 is a car key, and the car can be unlocked or locked through the smart key 100.

[0036] Combined with Figures 1 to 3 , the smart key 100 includes a housing 110 and a circuit board 140, and the circuit board 140 is disposed within the housing 110. Specifically, the housing 110 includes a main housing 120 and a battery cover 130, and the circuit board 140 is disposed within the main housing 120.

[0037] Combined with Figure 3 , one of the side walls of the main housing 120, for example, the bottom wall 121, is provided with a through hole 1211. Two ends of the through hole 1211 respectively form a first opening 1212 and a second opening 1213. The first opening 1212 is disposed on the outer surface of the bottom wall 121, and the second opening 1213 is disposed on the inner surface of the bottom wall 121.

[0038] Combined with Figure 5 , the circuit board 140 cooperates with the through hole 1211 to enclose and form a blind slot, which is called a battery installation slot 122. It can be understood that the circuit board 140 seals the second opening 1213, so that the circuit board 140 and the through hole 1211 cooperate to form the battery installation slot 122. Specifically, combined with Figure 4 and Figure 3 , one of the regions on the front surface of the circuit board 140 is a battery installation position 141. The battery installation position 141 is directly opposite to the second opening 1213, and the battery installation position 141 is disposed on the second opening 1213, so that the battery installation position 141 and the second opening 1213 of the through hole 1211 enclose to form the battery installation slot 122.

[0039] A control circuit is provided on the circuit board 140. A positive electrode 150 and a negative electrode 160 are provided within the battery installation slot 122. The positive electrode 150 and the negative electrode 160 are respectively electrically connected to the control circuit. The positive electrode 150 is disposed on the inner wall 1214 of the through hole 1211. When a battery is installed within the battery installation slot 122, the battery contacts the positive electrode 150 disposed on the inner wall 1214 for electrical connection. In the present utility model, the battery is a button battery 180 or a cylindrical battery. Hereinafter, taking the battery as the button battery 180 as an example, the present utility model is described, but it should not be construed as a limitation to the present utility model.

[0040] In traditional smart keys, the positive electrode is generally disposed on the circuit board. The button battery will press the positive electrode onto the circuit board, which may cause the positive electrode to scratch the circuit of the control circuit, resulting in a circuit open or short circuit, affecting the normal function of the smart key. This will not only damage the smart key, but also pose a potential threat to the vehicle's safety system.

[0041] However, in the smart key 100 of the present utility model, the positive electrode 150 is disposed on the inner wall 1214 of the through hole 1211, such that the positive electrode 150 does not contact the circuit board 140. When the button battery 180 is installed in the battery installation groove 122, the positive electrode 150 will not contact the circuit board 140, so as to avoid the positive electrode 150 from damaging the control circuit, thereby avoiding the open circuit or short circuit of the control circuit and protecting the smart key 100.

[0042] Combined with Figures 5 to 7 , the positive electrode 150 includes at least one elastic power connection part 151. The elastic power connection part 151 is disposed on the inner wall 1214 of the through hole 1211, and the elastic power connection part 151 protrudes from the inner wall 1214 towards the central axis of the through hole 1211. When the button battery 180 contacts the elastic power connection part 151, the elastic power connection part 151 will elastically contract towards the inner wall 1214 under the pressure of the side wall of the button battery 180, so that the button battery 180 can be installed in the battery installation groove 122, and the elastic power connection part 151 can also play a role in elastically limiting the button battery 180, such that the button battery 180 can be stably disposed in the battery installation groove 122 without shaking randomly.

[0043] In one embodiment, combined with Figure 7 , the elastic power connection part 151 is an elastic protrusion, and the outer convex surface of the elastic power connection part 151 is an arc surface. When the elastic power connection part 151 contacts the side wall of the button battery 180, the elastic power connection part 151 with an arc-shaped outer convex surface will not scratch the button battery 180, so as to protect the button battery 180.

[0044] In one embodiment, the negative electrode 160 is also disposed on the inner wall 1214 of the through hole 1211. The structure of the negative electrode 160 is the same as that of the positive electrode 150. For the specific structure of the negative electrode 160 and the cooperation relationship between the negative electrode 160 and the button battery 180, please refer to the above text. For the sake of saving space, it will not be elaborated here.

[0045] In another embodiment, combined with Figure 5 , the negative electrode 160 is disposed at the bottom of the battery installation groove 122, that is to say, the negative electrode 160 is disposed at the battery installation position 141 of the circuit board 140. In this embodiment, a grounding circuit is arranged at the battery installation position 141 of the control circuit board 140. The negative electrode 160 is in a sheet structure, but the edges of the sheet-shaped negative electrode 160 are rounded, that is, the negative electrode 160 is in a blunt state, such that the negative electrode 160 will not scratch the grounding circuit. Additionally, even if the negative electrode 160 scratches the grounding circuit, it will not affect the use of the smart battery. In one embodiment, no circuit is arranged at the battery installation position 141, such that the negative electrode 160 will not affect the operation of the control circuit.

[0046] In a typical embodiment of the present utility model, in combination with Figures 1 to 3 , the battery cover 130 covers the opening 1212 of the battery installation groove 122, that is to say, the battery cover 130 covers the first opening 1212 of the through hole 1211 to close the battery installation groove 122, protect the battery, and prevent external water vapor or dust from entering the battery installation groove 122, so that the battery installed in the battery installation groove 122 can work well.

[0047] In combination with Figure 1 , Figure 2 and Figure 5 , the battery cover 130 includes a cover plate 131 and at least one clamping portion 132, and the clamping portion 132 is arranged on the cover plate 131; a clamping groove 123 is arranged on the bottom wall 121 of the main housing 120, and the clamping portion 132 is clamped and matched with the clamping groove 123, so that the battery cover 130 can stably cover the opening 1212 of the battery installation groove 122.

[0048] In a further embodiment, the clamping portion 132 is arranged on the edge of the cover plate 131, and the clamping portion 132 extends away from the cover plate 131 from the edge of the cover plate 131. The clamping groove 123 is also arranged outside the battery installation groove 122, that is to say, the clamping groove 123 is formed on the bottom wall 121, and the clamping portion 132 is clamped with the clamping groove 123 outside the battery installation groove 122 to prevent the clamping portion 132 and the clamping groove 123 from affecting the installation of the battery in the battery installation groove 122, so that the battery can be stably installed in the battery installation groove 122.

[0049] Specifically, the clamping portion 132 can make a rotational movement, and the clamping portion 132 and the clamping groove 123 are rotationally clamped and fixed. Specifically, the clamping groove 123 is sequentially divided into a rotation section 1231 and a clamping section 1232 along the rotation path of the clamping portion 132. A clamping protrusion 1321 is arranged on the clamping portion 132, and the clamping protrusion 1321 can extend into the clamping groove 123 from the rotation section 1231. The rotation section 1231 does not restrict the clamping protrusion 1321. Then, driven by the rotation of the clamping portion 132, the clamping protrusion 1321 enters the clamping section 1232 from the rotation section 1231 along the extension path of the clamping groove 123, and the clamping protrusion 1321 and the clamping section 1232 are clamped and matched with each other, so that the clamping portion 132 and the clamping groove 123 are clamped and matched, thereby enabling the battery cover 130 to cover the battery installation groove 122.

[0050] In one embodiment, the battery cover 130 includes a pair of clamping portions 132 which are disposed on both sides of the cover plate 131 and symmetrically arranged about the central axis of the cover plate 131. When the battery cover 130 covers the opening of the battery installation groove 122, the pair of clamping portions 132 are uniformly stressed, and the battery cover 130 can be stably arranged on the main housing 120.

[0051] In one embodiment, the clamping portion 132 further includes a rotating surface 1322. By applying a force to the rotating surface 1322, the clamping portion 132 can be driven to rotate, and at the same time, the battery cover 130 can also be driven to rotate. In this embodiment, a plurality of anti-slip strips 133 are provided on the rotating surface 1322 to prevent slipping when a user applies a force to the rotating surface 1322. In another embodiment, anti-slip patterns are provided on the rotating surface 1322.

[0052] In one embodiment, in combination with Figure 8 and Figure 9 , an insertion ring groove 134 is further provided on the cover plate 131, and a sealing ring 135 is assembled in the insertion ring groove 134. When the battery cover 130 covers the battery installation groove 122, the opening 1212 of the battery installation groove 122 is inserted into the insertion ring groove 134, and the sealing ring 135 abuts against the opening 1212 of the battery installation groove 122 to seal the opening 1212 of the battery installation groove 122 and prevent external moisture or dust from entering the battery installation groove 122.

[0053] In one embodiment, in combination with Figure 3 , the main housing 120 includes an upper shell 124 and a lower shell 125 which are assembled to form the main housing 120. The bottom wall 121 is disposed on the lower shell 125.

[0054] In one embodiment, in combination with Figure 3 , a support frame 170 is further provided in the main housing 120, and the circuit board 140 is disposed on the support frame 170 to support the circuit board 140 through the support frame 170, so that the circuit board 140 is stably arranged in the main housing 120. Preferably, the support frame 170 is made of a flexible material, so that the support frame 170 can buffer the circuit board 140 and protect the circuit board 140.

[0055] In summary, in the intelligent key of the present utility model, the positive electrode is disposed on the inner wall of the battery installation groove to prevent the button battery from pressing the positive electrode against the circuit board, thereby preventing the positive electrode from scratching the circuit on the circuit board and further preventing circuit open circuit or short circuit, so that the intelligent key can work well.

[0056] The above description is only a preferred embodiment of the present utility model and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in the present utility model is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above utility model concept. For example, the technical solutions formed by the mutual replacement of the above features with the technical features (but not limited to) having similar functions in the present utility model.

[0057] Although the subject matter has been described in language specific to structural features and / or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. On the contrary, the specific features and acts described above are merely example forms for implementing the claims.

Claims

1. An intelligent key, characterized in that, It includes a housing and a circuit board disposed within the housing. A control circuit is arranged on the circuit board. The housing includes a main housing and a battery cover. A through hole is formed in the main housing, and the through hole cooperates with the circuit board to enclose a battery installation groove. A positive electrode and a negative electrode are installed in the battery installation groove, and the positive electrode and the negative electrode are respectively electrically connected to the control circuit. The positive electrode is disposed on the inner wall of the through hole, and the battery cover covers the opening of the battery installation groove.

2. The intelligent key according to claim 1, wherein, One of the regions on the front surface of the circuit board constitutes a battery installation position, and the battery installation position cooperates with the through hole to form the battery installation groove.

3. The intelligent key according to claim 1, wherein The positive electrode includes at least one elastic electrical connection part, and the elastic electrical connection part protrudes from the inner wall towards the central axis of the through hole.

4. The intelligent key according to claim 3, characterized in that, The elastic electrical connection part is an elastic protrusion, and the outer convex surface of the elastic electrical connection part is an arc surface.

5. The intelligent key according to claim 2, wherein The negative electrode is disposed on the battery installation position of the circuit board. The control circuit arranges a grounding circuit at the battery installation position, or no circuit is arranged at the battery installation position.

6. The intelligent key according to claim 1, wherein, The negative electrode is disposed on the inner wall of the through hole.

7. The intelligent key according to claim 1, wherein The battery cover includes a cover plate and at least one clamping part arranged on the cover plate. The main housing is provided with a clamping groove corresponding to the clamping part, and the clamping part cooperates with the clamping groove for clamping.

8. The intelligent key according to claim 7, characterized in that, The clamping part is arranged on the edge of the cover plate and extends away from the cover plate in a direction away from the cover plate. The clamping groove is arranged outside the battery installation groove, and the clamping groove is fixedly clamped with the clamping part.

9. The intelligent key according to claim 8, characterized in that, The clamping groove is sequentially divided into a rotation section and a clamping section along the rotation path of the clamping part. The rotation section can accommodate the clamping part, and a clamping protrusion is arranged on the clamping part, and the clamping protrusion is clamped with the clamping section.

10. The intelligent key according to claim 7, characterized in that The clamping part includes a rotating surface, the rotating surface has the same orientation as the opening of the battery installation groove, and anti-slip patterns or a plurality of anti-slip strips are arranged on the rotating surface.

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