Liquid crystal combination instrument and vehicle

Abstract

The utility model discloses a liquid crystal combination instrument and a vehicle, and the liquid crystal combination instrument comprises a transparent mask and a rear housing which are covered to form an internal cavity; the lining support is arranged in the inner cavity and divides the inner cavity, the lining support and the transparent mask define a sealing cavity, the lining support and the rear shell define a ventilation cavity, the ventilation cavity is communicated with the outside through the ventilation hole of the rear shell, and the lining support is provided with a mounting groove with a notch facing the transparent mask; the liquid crystal screen is arranged in the mounting groove, a sealing piece in sealing fit with the groove wall of the mounting groove is arranged on the periphery of the edge of the front face, facing the transparent mask, of the liquid crystal screen and used for sealing the sealing cavity, and the back face, back to the transparent mask, of the liquid crystal screen is electrically connected with a main control circuit board arranged in the ventilation cavity. When the liquid crystal combination instrument works in a humid and hot environment, the risk that water drops are formed on the transparent face mask and an internal circuit is burnt due to short circuit is reduced, so that a driver can effectively check instrument information, the driving safety is improved, and economic losses of customers are reduced.

Description

Technical Field

[0001] The utility model relates to the field of vehicle electronic technology, and more specifically, to a liquid crystal combination meter. In addition, the utility model also relates to a vehicle comprising the liquid crystal combination meter. Background Art

[0002] The LCD instrument cluster is located directly in front of the driver and is used to display vehicle operating condition information. It is mainly composed of a transparent mask, a rear shell, and a liquid crystal screen. The transparent mask is covered on the rear shell, and the liquid crystal screen is arranged in the cavity formed by the rear shell and the transparent mask with its front facing the transparent mask.

[0003] When the existing LCD combination instrument works in a hot and humid environment, the LCD screen generates a lot of heat, and the internal gas forms water vapor when it encounters heat. The driver usually turns on the air conditioner to cool the external cockpit, so a temperature difference is formed inside and outside the instrument. The water vapor is easy to condense on the transparent mask to form water droplets, which will cause the driver to be unable to view the instrument information and affect driving safety. It may even cause water accumulation inside the instrument, causing the internal circuit to short-circuit and burn, which not only affects driving safety but also increases the economic losses of customers.

[0004] In summary, how to prevent water droplets from easily forming on the transparent mask and the internal circuit from being short-circuited and burned when the existing liquid crystal combination instrument works in a hot and humid environment is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a liquid crystal combination instrument, which reduces the risk of water droplets forming on the transparent mask and the internal circuit short-circuiting and burning when working in a hot and humid environment, so as to ensure that the driver can effectively view the instrument information, improve driving safety, and reduce the economic losses of customers.

[0006] Another object of the utility model is to provide a vehicle including the above-mentioned liquid crystal combination instrument, which has a good driving experience.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A liquid crystal combination instrument, comprising:

[0009] A transparent face mask and a rear shell, the two cover each other to form an internal cavity;

[0010] An inner lining bracket is arranged in the inner cavity, the inner lining bracket divides the inner cavity and respectively forms a sealed cavity with the transparent mask and a ventilation cavity with the rear shell, and the ventilation cavity is connected with the outside through the ventilation hole of the rear shell, and the inner lining bracket is provided with a mounting groove with a notch facing the transparent mask;

[0011] A liquid crystal screen is arranged in the installation groove. A sealing member is provided around the front edge of the liquid crystal screen facing the transparent mask, which is sealed with the groove wall of the installation groove and is used to seal the sealed cavity. The back side of the liquid crystal screen facing away from the transparent mask is electrically connected to the main control circuit board placed in the ventilation cavity.

[0012] Preferably, the lining bracket and the main control circuit board are arranged opposite to each other in upper and lower directions, the mounting groove is arranged in the middle of the lining bracket, shading areas are arranged on both sides of the lining bracket, the shading area has a plurality of light-transmitting holes penetrating the lining bracket, indicator lights corresponding to the light-transmitting holes are arranged on the main control circuit board, and a shading sheet is arranged on the front side of the lining bracket corresponding to the shading area and facing the transparent mask.

[0013] Preferably, the main control circuit board is fixed in the rear shell, the lower part of the lining bracket is fixed in the rear shell and adjacent to the main control circuit, openings are provided at both ends of the transparent mask and the rear shell facing each other, and when the two openings are covered, the upper part of the lining bracket is nested in the transparent mask.

[0014] Preferably, a pressure plate is provided on the inner end surface of the transparent cover facing the liquid crystal screen, and the pressure plate and the sealing member are press-fitted and the shapes of the two are adapted.

[0015] Preferably, the transparent mask includes a transparent plate and a screen ring arranged around the transparent plate, the transparent plate is arranged opposite to the liquid crystal screen and the light emitting end of the indicator light, the bottom end of the screen ring is provided with a plurality of first clips distributed along its circumference, and the outer side wall of the rear shell is provided with a plurality of second clips which are snap-fitted with the plurality of the first clips in a one-to-one correspondence.

[0016] Preferably, the ventilation holes are grille holes, and a plurality of the grille holes are arranged in an array on the rear shell.

[0017] Preferably, a ventilation inlet communicating with the ventilation cavity is provided on the rear shell body, and a fan electrically connected to the main control circuit board is provided at the ventilation inlet.

[0018] Preferably, the main control circuit board is provided with a temperature detector near the LCD screen, which is used to detect the real-time temperature of the LCD screen and transmit it to the main control circuit board. The main control circuit board is used to control the speed of the fan according to the acquired real-time temperature value.

[0019] Preferably, a humidity detector is provided on the main control circuit board for detecting the real-time humidity of the air in the ventilation cavity and transmitting the real-time humidity to the main control circuit board. The main control circuit board is used to control the rotation speed of the fan according to the acquired real-time humidity value.

[0020] A vehicle comprises the liquid crystal combination instrument described in any one of the above items.

[0021] When the liquid crystal combination instrument provided by the utility model works in a hot and humid environment, the driver will turn on the air conditioner to cool down the external cockpit. At this time, the temperature of the transparent mask is relatively low. Even if the liquid crystal screen generates a large amount of heat during operation, the air moisture in the ventilation cavity evaporates to form water vapor when it encounters heat on the back of the liquid crystal screen. Since a seal that seals with the groove wall of the installation groove is arranged around the front edge of the liquid crystal screen, the sealing performance of the sealed cavity can be increased to effectively isolate the water vapor from rising into the sealed cavity and contacting the transparent mask, thereby avoiding the situation where the water vapor condenses on the transparent mask to form water droplets when it encounters cold, thereby ensuring that the driver can effectively view the instrument information and improving driving safety.

[0022] In addition, since the ventilation cavity is connected to the outside world, air convection can be achieved between the ventilation cavity and the outside world. On the one hand, it avoids the situation where water vapor in the ventilation cavity gathers to form water droplets and causes short circuit and burning of the main control circuit board, thereby reducing the economic loss of customers. On the other hand, natural ventilation of the ventilation cavity is achieved, which is beneficial to the heat dissipation of the LCD screen, thereby reducing the risk of air moisture in the ventilation cavity being evaporated, greatly reducing the risk of water droplets forming on the transparent mask and short circuit and burning of the main control circuit board, further improving driving safety and reducing customers' economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 This is an exploded view of the structure of a liquid crystal combination instrument provided by the utility model;

[0025] Figure 2 A schematic diagram of the structure of the transparent mask provided by the utility model;

[0026] Figure 3 This is a schematic structural diagram of the rear housing provided by the utility model.

[0027] Reference numerals:

[0028] 1-transparent mask; 2-pressing plate; 3-shading sheet; 4-sealing piece; 5-LCD screen; 6-lining bracket; 7-main control circuit board; 8-rear housing; 9-screws;

[0029] 11-transparent plate; 12-screen ring; 121-first clamping member;

[0030] 61-mounting slot; 62-light transmission hole;

[0031] 81 - second clamping member; 82 - ventilation hole. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] The core of the utility model is to provide a liquid crystal combination instrument, which reduces the risk of water droplets forming on the transparent mask and the risk of internal circuit short circuit and burning when working in a hot and humid environment, so as to ensure that the driver can effectively view the instrument information, improve driving safety, and reduce the economic losses of customers.

[0034] Another core of the utility model is to provide a vehicle including the above-mentioned liquid crystal combination instrument, which has a good driving experience.

[0035] It should be noted that in the present embodiment, the orientation or position relationship indicated by "upper", "lower", etc. is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0036] Please refer to Figure 1 The present application provides a liquid crystal combination instrument, including a transparent mask 1, a rear shell 8, an inner lining bracket 6 and a liquid crystal screen 5, wherein the transparent mask 1 and the rear shell 8 are covered to form an internal cavity.

[0037] The lining bracket 6 is arranged in the internal cavity, the lining bracket 6 divides the internal cavity and respectively forms a sealed cavity with the transparent mask 1 and a ventilation cavity with the rear shell 8, and the ventilation cavity is connected with the outside through the ventilation hole 82 of the rear shell 8. The lining bracket 6 is provided with a mounting groove 61 with an opening facing the transparent mask 1.

[0038] The LCD screen 5 is arranged in the installation groove 61. A sealing member 4 is provided around the front edge of the LCD screen 5 facing the transparent mask 1, which is sealed with the groove wall of the installation groove 61 and is used to seal the sealed cavity. The back of the LCD screen 5 facing away from the transparent mask 1 is electrically connected to the main control circuit board 7 placed in the ventilation cavity.

[0039] It should be noted that the slot of the mounting slot 61 is arranged toward the transparent mask 1, so that the information of the LCD screen 5 located in the mounting slot 61 is projected on the transparent mask 1, so that the driver can intuitively view the vehicle operation condition information. And the LCD screen 5 needs to be connected to the main control circuit board 7 located in the ventilation cavity through a wire, which is used to convert the electrical signal into an image signal, that is, to convert the digital signal into an image display. Therefore, it can be seen that the bottom of the mounting slot 61 is provided with a through hole for the wire to pass through, that is, the mounting slot 61 is connected with the ventilation cavity. There is a gap between the periphery of the LCD screen 5 and the groove wall of the mounting slot 61. The sealing member 4 can be a sponge sealing ring. The sponge sealing ring is attached to the front edge of the LCD screen 5 around the LCD screen 5 and is close to the groove wall of the mounting slot 61 to block the gap, so that the sealing cavity and the ventilation cavity are not connected, that is, the sealing cavity is kept sealed.

[0040] In this way, when the liquid crystal combination instrument with the above structure is working in a hot and humid environment, the driver will turn on the air conditioner to cool down the external cockpit. At this time, the temperature of the transparent mask 1 is relatively low. Even if the liquid crystal screen 5 generates a lot of heat during operation, the air moisture in the ventilation cavity evaporates to form water vapor when it encounters heat on the back of the liquid crystal screen 5. Since the seal 4 blocks the gap between the periphery of the liquid crystal screen 5 and the groove wall of the mounting groove 61, the sealing performance of the sealed cavity can be increased to effectively isolate the water vapor from rising into the sealed cavity and contacting the transparent mask 1, thereby avoiding the situation where the water vapor condenses on the transparent mask 1 to form water droplets when it encounters cold, thereby ensuring that the driver can effectively view the instrument information and improve driving safety.

[0041] In addition, since the ventilation cavity is connected to the outside world, air convection can be achieved between the ventilation cavity and the outside world. On the one hand, it avoids the situation where water vapor in the ventilation cavity gathers to form water droplets and causes the main control circuit board 7 to short-circuit and burn, thereby reducing the customer's economic loss. On the other hand, natural ventilation of the ventilation cavity is achieved, which is beneficial to the heat dissipation of the liquid crystal screen 5, so as to reduce the risk of air moisture in the ventilation cavity being evaporated, greatly reducing the risk of water droplets forming on the transparent mask 1 and the main control circuit board 7 short-circuiting and burning, further improving driving safety and reducing customers' economic losses.

[0042] In summary, the liquid crystal combination instrument of the present application reduces the risk of water droplets forming on the transparent mask 1 and internal circuit short circuit burning when working in a hot and humid environment, so as to ensure that the driver can effectively view the instrument information, improve driving safety, and reduce the economic losses of customers. In addition, the vehicle with the above-mentioned liquid crystal combination instrument can enhance the driving experience of customers.

[0043] It should be noted that the liquid crystal instrument cluster has the function of displaying various control signals and alarm signals of the vehicle, and this function is achieved by using indicator lights of different colors and shading sheets 3 of different shapes to form signal indicator lights of different shapes.

[0044] Preferably, please refer to Figure 1The transparent mask 1, the lining bracket 6, the main control circuit board 7 and the rear shell 8 are arranged in parallel from top to bottom, which can save the space volume of the internal cavity along the vertical direction, reduce the thickness of the liquid crystal combination instrument, and ensure that the information and signal indicator lights of the liquid crystal screen 5 are directly projected on the transparent mask 1, which is convenient for the driver to view.

[0045] Considering the specific installation methods of indicator lights of different colors, based on the above embodiments, please refer to Figure 1 The mounting groove 61 is arranged in the middle of the lining bracket 6, and shading areas are arranged on both sides of the lining bracket 6. The shading area has a plurality of light-transmitting holes 62 penetrating the lining bracket 6. Indicator lights corresponding to the light-transmitting holes 62 are arranged on the main control circuit board 7, and a shading sheet 3 is arranged on the front side of the lining bracket 6 corresponding to the shading area and facing the transparent mask 1.

[0046] It is understandable that during the process of driving the vehicle, the driver frequently checks the vehicle operating condition information displayed on the LCD screen 5. The mounting groove 61 is set in the middle of the lining bracket 6, so that the information displayed on the LCD screen 5 can be mapped in the center on the transparent mask 1, reducing the driver's sight diversion time and further improving driving safety. Multiple indicator lights have different colors, each indicator light is set on the main control circuit board 7, the main control circuit board 7 supplies power to the indicator lights to control the opening and closing of the indicator lights, and both sides of the lining bracket 6 are provided with light-transmitting holes 62 corresponding to the positions of multiple indicator lights. The light-transmitting holes 62 need to be set through the lining bracket 6 to ensure that the light source of the indicator light can be projected on the transparent mask 1 through the light-transmitting holes 62 and the light-shielding sheet 3 in sequence. The light-shielding sheet 3 is attached to the front of the corresponding light-shielding area of ​​the lining bracket 6, which not only realizes the formation of signal indicator lights of different shapes in combination with indicator lights of different colors, but also blocks multiple light-transmitting holes 62 to effectively seal the sealed cavity, preventing the water vapor in the ventilation hole 82 from passing through the light-transmitting holes 62 into the sealed cavity and contacting the transparent mask 1 to condense to form water droplets.

[0047] Taking into account the specific installation method of the lining bracket 6 and the main control circuit board 7, on the basis of the above embodiment, the main control circuit board 7 is fixed in the rear shell 8, the lower part of the lining bracket 6 is fixed in the rear shell 8 and is adjacent to the main control circuit, and openings are provided at both ends of the transparent mask 1 and the rear shell 8 facing each other, and when the two openings are covered, the upper part of the lining bracket 6 is nested in the transparent mask 1.

[0048] Specifically, the transparent mask 1 and the rear shell 8 both have spaces inside, and the bottom end of the transparent mask 1 and the top end of the rear shell 8 are both provided with openings, the main control circuit board 7 is fixed to the bottom end of the rear shell 8 by screws 9, the lower part of the lining bracket 6 is fixed in the rear shell 8 by screws 9, and the upper part extends out of the rear shell 8, when the transparent mask 1 is covered on the rear shell 8, that is, when the opening at the bottom end of the transparent mask 1 is covered with the opening at the top end of the rear shell 8, the upper part of the lining bracket 6 is nested in the transparent mask 1, as shown in FIG. Figure 1 Therefore, the lining bracket 6 and the main control circuit board 7 are arranged in the above structure, so that the two are compactly arranged in the internal cavity formed by the transparent mask 1 and the rear shell 8, which greatly saves the space volume of the internal cavity, that is, the volume of the liquid crystal combination instrument is simplified, and then the installation space of the liquid crystal combination instrument is reduced. Since the liquid crystal combination instrument is embedded in the vehicle instrument panel, it is beneficial to reduce the space occupied by the vehicle instrument panel.

[0049] For further information, please refer to Figure 2 A pressure plate 2 is provided on the inner end surface of the transparent mask 1 facing the liquid crystal screen 5. The pressure plate 2 and the seal 4 are pressed and matched with each other and their shapes are adapted to each other, which is beneficial to enhancing the sealing effect of the sealing cavity, thereby effectively ensuring that the driver can effectively view the instrument information and improving driving safety.

[0050] Considering the specific installation method between the transparent mask 1 and the rear shell 8, based on the above embodiment, please refer to Figure 1 The transparent mask 1 includes a transparent plate 11 and a screen ring 12 arranged around the transparent plate 11. The transparent plate 11 is arranged opposite to the light emitting end of the liquid crystal screen 5 and the indicator light. The bottom end of the screen ring 12 is provided with a plurality of first clips 121 distributed along the periphery thereof, and the outer side wall of the rear shell body 8 is provided with a plurality of second clips 81 which are clipped and adapted to the plurality of first clips 121 in a one-to-one correspondence.

[0051] Specifically, the transparent mask 1 is composed of a transparent plate 11 and a screen ring 12. The transparent plate 11 is a PVC plate, an acrylic plate, a polycarbonate plate, a PC plate or a glass plate. The screen ring 12 is arranged around the periphery of the transparent plate 11 to connect the rear shell body 8 through the screen ring 12 to avoid direct connection between the transparent plate 11 and the rear shell body 8 and affecting the structural strength of the transparent plate 11, thereby ensuring that the transparent plate 11 normally displays the information of the LCD screen 5 and signal indicator lights of different shapes. Among them, the space enclosed by the transparent plate 11 and the screen ring 12 is used to nest the lining bracket 6 and extend out of the upper part of the rear shell body 8. A pressure plate 2 that presses against the seal 4 is arranged on the end face of the transparent plate 11 facing the lining bracket 6. The first clip 121 adopts a clip structure, and the second clip 81 adopts a block structure. Multiple clips are arranged around the bottom end of the screen ring 12, and multiple blocks corresponding to the multiple clip positions are arranged on the outer wall of the rear shell body 8, so that the transparent mask 1 and the rear shell body 8 can be detachably connected through the clips and blocks, which facilitates the disassembly and assembly of parts in the internal cavity formed by the transparent mask 1 and the rear shell body 8.

[0052] To speed up the air convection in the ventilation cavity, based on the above embodiment, please refer to Figure 3 The ventilation holes 82 are grille holes, and a plurality of grille holes are arranged in an array on the rear housing 8 .

[0053] It can be understood that the grille holes have very good ventilation performance, that is, they can supply air quickly and evenly. Multiple grille holes are arranged in an array at the bottom end of the rear shell 8 to increase the path for outside air to enter the ventilation cavity, that is, a large amount of outside air is sent into the ventilation cavity, which is conducive to accelerating the air convection in the ventilation cavity. It not only effectively disperses the water vapor in the ventilation cavity and avoids the accumulation of water vapor to form water droplets, but also enhances the heat dissipation effect of the LCD screen 5.

[0054] Preferably, the bottom of the installation groove 61 is in a grid shape, so that part of the outside air entering the ventilation cavity can quickly pass through the grid-shaped bottom of the groove to exchange heat with the LCD screen 5 through convection, which can further enhance the heat dissipation effect of the LCD screen 5.

[0055] In order to enable rapid convection heat exchange between the air in the ventilation cavity and the outside air, based on the above embodiment, a ventilation inlet connected to the ventilation cavity is provided on the rear shell 8, and a fan electrically connected to the main control circuit board 7 is provided on the ventilation inlet.

[0056] It can be understood that the main control circuit board 7 supplies power to the fan and can control the opening and closing of the fan. The main control circuit board 7 controls the fan to start running, and the fan can quickly blow outside air into the ventilation cavity to take away the hot air around the main control circuit board 7 and the LCD screen 5, so as to quickly dissipate the heat of the LCD screen 5 and the main control circuit board 7, that is, quickly reduce the temperature of the ventilation cavity, which is not only conducive to ensuring the normal operation of the LCD screen 5 and the main control circuit board 7 and improving the service life, but also greatly reduces the risk of air moisture in the ventilation cavity being evaporated, thereby greatly reducing the risk of water vapor rising and contacting the transparent mask 1 to form water droplets, and the risk of water vapor gathering to form water droplets and burning the main control circuit board 7.

[0057] In order to achieve accurate control of the ventilation chamber temperature, thereby effectively ensuring that water droplets do not form on the transparent mask 1 and that the main control circuit board 7 operates normally, in a first embodiment, a temperature detector is provided on the main control circuit board 7 near the LCD screen 5 to detect the real-time temperature of the LCD screen 5 and transmit it to the main control circuit board 7. The main control circuit board 7 is used to control the speed of the fan according to the acquired real-time temperature value.

[0058] It is understandable that, during the operation of the LCD instrument cluster, the heat generated mainly comes from the LCD screen 5, compared to the main control circuit board 7 and its components such as indicator lights. The temperature detector is set on the main control circuit board 7 and is adjacent to the LCD screen 5. The main control circuit board 7 supplies power to the temperature detector and obtains the real-time temperature value of the LCD screen 5. The main control circuit board 7 has a controller, and the controller inputs a preset temperature value that meets the requirements in advance. When the real-time temperature value exceeds the preset temperature value, it means that the natural air supply from the grille holes to the ventilation cavity and the real-time speed of the fan can no longer quickly dissipate the heat of the LCD screen 5. The main control circuit board 7 increases the speed of the fan by adjusting the voltage and current of the fan to accelerate the air supply to the ventilation cavity, thereby increasing the heat dissipation speed of the LCD screen 5.

[0059] Even if the temperature of the ventilation cavity drops to the required temperature range, it can effectively ensure that the transparent mask 1 will not form water droplets and the main control circuit board 7 can work normally.

[0060] In addition, in the second embodiment, a humidity detector is provided on the main control circuit board 7 for detecting the real-time humidity of the air in the ventilation cavity and transmitting it to the main control circuit board 7. The main control circuit board 7 is used to control the speed of the fan according to the acquired real-time humidity value.

[0061] It is understandable that the moisture in the air in the ventilation cavity will evaporate when it contacts the back of the liquid crystal screen 5 to form water vapor with low density. A large amount of water vapor will rise and leak into the sealed cavity and contact the transparent mask 1 to condense into water droplets. The water vapor will further gather to form water droplets and damage the main control circuit board 7. It can be seen that the lower the moisture content of the air in the ventilation cavity, the less likely the transparent mask 1 will form water droplets and the more normally the main control circuit board 7 will work. A temperature detector is set on the main control circuit board 7. The controller in the main control circuit board 7 inputs a preset humidity value that meets the requirements in advance. When the real-time humidity value exceeds the preset humidity value, it means that the convective heat exchange speed between the air in the ventilation cavity and the outside air is slow. The main control circuit board 7 increases the speed of the fan by adjusting the voltage and current of the fan to accelerate the air supply to the ventilation cavity, thereby increasing the convective heat exchange speed between the air in the ventilation cavity and the outside air, so as to quickly take away the water vapor in the ventilation cavity, and can also effectively ensure that the transparent mask 1 will not form water droplets and the main control circuit board 7 works normally.

[0062] It should be noted that the liquid crystal combination instrument of the present application can be provided with the temperature detector and humidity detector in the above two embodiments at the same time, and the cooperation between the two can greatly ensure that the transparent mask 1 does not form water droplets and the main control circuit board 7 works normally.

[0063] In addition to the above-mentioned liquid crystal combination instrument, the present invention also provides a vehicle including the liquid crystal combination instrument disclosed in the above-mentioned embodiment. For the structures of other parts of the vehicle, please refer to the prior art and will not be described in detail herein.

[0064] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0065] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0066] The above is a detailed introduction to a liquid crystal combination instrument and a vehicle provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A liquid crystal combination instrument, characterized in that: include: A transparent mask (1) and a rear shell (8), the two covering each other to form an internal cavity; an inner lining bracket (6) disposed in the internal cavity, the inner lining bracket (6) dividing the internal cavity and respectively forming a sealed cavity with the transparent mask (1) and a ventilation cavity with the rear shell (8), and the ventilation cavity is connected to the outside through a ventilation hole (82) of the rear shell (8), and the inner lining bracket (6) is provided with a mounting groove (61) with a notch facing the transparent mask (1); A liquid crystal screen (5) is arranged in the installation groove (61); a sealing member (4) is arranged around the front edge of the liquid crystal screen (5) facing the transparent mask (1) and is in sealing cooperation with the groove wall of the installation groove (61) for sealing the sealed cavity; and a back side of the liquid crystal screen (5) facing away from the transparent mask (1) is electrically connected to a main control circuit board (7) arranged in the ventilation cavity.

2. The liquid crystal combination instrument according to claim 1, characterized in that: The lining bracket (6) and the main control circuit board (7) are arranged opposite to each other in the upper and lower parts, the mounting groove (61) is arranged in the middle part of the lining bracket (6), and light-shielding areas are arranged on both sides of the lining bracket (6), and the light-shielding area has a plurality of light-transmitting holes (62) penetrating the lining bracket (6), and indicator lights corresponding to the light-transmitting holes (62) are arranged on the main control circuit board (7), and a light-shielding sheet (3) is arranged on the front side of the lining bracket (6) corresponding to the light-shielding area and facing the transparent mask (1).

3. The liquid crystal combination instrument according to claim 1, characterized in that: The main control circuit board (7) is fixed in the rear shell (8), the lower part of the lining bracket (6) is fixed in the rear shell (8) and is adjacent to the main control circuit, the two ends of the transparent mask (1) and the rear shell (8) facing each other are provided with openings, and when the two openings are covered, the upper part of the lining bracket (6) is nested in the transparent mask (1).

4. The liquid crystal combination instrument according to claim 3, characterized in that: A pressing plate (2) is provided on the inner end surface of the transparent mask (1) facing the liquid crystal screen (5); the pressing plate (2) and the sealing member (4) are pressed against each other and the shapes of the two are adapted to each other.

5. The liquid crystal combination instrument according to claim 2, characterized in that: The transparent mask (1) comprises a transparent plate (11) and a screen ring (12) arranged around the transparent plate (11); the transparent plate (11) is arranged opposite to the liquid crystal screen (5) and the light emitting end of the indicator light; the bottom end of the screen ring (12) is provided with a plurality of first clips (121) distributed along the circumference thereof; and the outer side wall of the rear shell (8) is provided with a plurality of second clips (81) which are clipped and adapted to the plurality of first clips (121) in a one-to-one correspondence.

6. The liquid crystal combination instrument according to claim 1, characterized in that: The ventilation holes (82) are grille holes, and a plurality of the grille holes are arranged in an array on the rear housing (8).

7. The liquid crystal combination instrument according to claim 1, characterized in that: The rear housing (8) is provided with a ventilation inlet communicated with the ventilation cavity, and the ventilation inlet is provided with a fan electrically connected to the main control circuit board (7).

8. The liquid crystal combination instrument according to claim 7, characterized in that: The main control circuit board (7) is provided with a temperature detector near the liquid crystal screen (5) for detecting the real-time temperature of the liquid crystal screen (5) and transmitting the temperature to the main control circuit board (7). The main control circuit board (7) is used to control the rotation speed of the fan according to the acquired real-time temperature value.

9. The liquid crystal combination instrument according to claim 7, characterized in that: The main control circuit board (7) is provided with a humidity detector for detecting the real-time humidity of the air in the ventilation cavity and transmitting the real-time humidity to the main control circuit board (7). The main control circuit board (7) is used to control the rotation speed of the fan according to the acquired real-time humidity value.

10. A vehicle, characterized in that: A liquid crystal combination instrument comprising any one of claims 1 to 9.

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